char = F;code = 70 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = c;code = 99 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = l;code = 108 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = m;code = 109 char = n;code = 110 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = g;code = 103 char = r;code = 114 char = o;code = 111 char = w;code = 119 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = .;code = 46 result sql = Fine genetic mapping of the Co locus controlling columnar growth habit in apple.
Fine genetic mapping of the Co locus controlling columnar growth habit in apple.char = T;code = 84 char = r;code = 114 char = e;code = 101 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = c;code = 99 char = h;code = 104 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = m;code = 109 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ,;code = 44 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = x;code = 120 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = d;code = 100 char = y;code = 121 char = n;code = 110 char = a;code = 97 char = m;code = 109 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ,;code = 44 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = o;code = 111 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = v;code = 118 char = i;code = 105 char = r;code = 114 char = o;code = 111 char = n;code = 110 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = f;code = 102 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = ';code = 39 char = W;code = 87 char = i;code = 105 char = j;code = 106 char = c;code = 99 char = i;code = 105 char = k;code = 107 char = ;code = 32 char = M;code = 77 char = c;code = 99 char = I;code = 73 char = n;code = 110 char = t;code = 116 char = o;code = 111 char = s;code = 115 char = h;code = 104 char = ';code = 39 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = m;code = 109 char = n;code = 110 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = (;code = 40 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = h;code = 104 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = );code = 41 char = ;code = 32 char = s;code = 115 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = ';code = 39 char = M;code = 77 char = c;code = 99 char = I;code = 73 char = n;code = 110 char = t;code = 116 char = o;code = 111 char = s;code = 115 char = h;code = 104 char = ';code = 39 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = u;code = 117 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = o;code = 111 char = u;code = 117 char = r;code = 114 char = c;code = 99 char = e;code = 101 char = ,;code = 44 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = u;code = 117 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = -;code = 45 char = b;code = 98 char = r;code = 114 char = e;code = 101 char = e;code = 101 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = g;code = 103 char = r;code = 114 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = i;code = 105 char = m;code = 109 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = v;code = 118 char = e;code = 101 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = e;code = 101 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = c;code = 99 char = h;code = 104 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = m;code = 109 char = n;code = 110 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = g;code = 103 char = r;code = 114 char = o;code = 111 char = w;code = 119 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = i;code = 105 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = i;code = 105 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = l;code = 108 char = l;code = 108 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = l;code = 108 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = (;code = 40 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = m;code = 109 char = n;code = 110 char = a;code = 97 char = r;code = 114 char = );code = 41 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = k;code = 107 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = r;code = 114 char = o;code = 111 char = u;code = 117 char = p;code = 112 char = -;code = 45 char = 1;code = 49 char = 0;code = 48 char = .;code = 46 char = ;code = 32 char = B;code = 66 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = c;code = 99 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = m;code = 109 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = u;code = 117 char = n;code = 110 char = k;code = 107 char = n;code = 110 char = o;code = 111 char = w;code = 119 char = n;code = 110 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = o;code = 111 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = i;code = 105 char = s;code = 115 char = e;code = 101 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = p;code = 112 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = c;code = 99 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = f;code = 102 char = y;code = 121 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = -;code = 45 char = b;code = 98 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = a;code = 97 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = u;code = 117 char = s;code = 115 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = b;code = 98 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = a;code = 97 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = u;code = 117 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = o;code = 111 char = p;code = 112 char = ;code = 32 char = n;code = 110 char = e;code = 101 char = w;code = 119 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = k;code = 107 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = i;code = 105 char = g;code = 103 char = h;code = 104 char = t;code = 116 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = .;code = 46 char = ;code = 32 char = F;code = 70 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = n;code = 110 char = e;code = 101 char = w;code = 119 char = ;code = 32 char = s;code = 115 char = i;code = 105 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = e;code = 101 char = a;code = 97 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = o;code = 111 char = p;code = 112 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = (;code = 40 char = C;code = 67 char = 1;code = 49 char = 7;code = 55 char = 5;code = 53 char = 3;code = 51 char = -;code = 45 char = 3;code = 51 char = 5;code = 53 char = 2;code = 50 char = 0;code = 48 char = ,;code = 44 char = ;code = 32 char = C;code = 67 char = 1;code = 49 char = 8;code = 56 char = 4;code = 52 char = 7;code = 55 char = 0;code = 48 char = -;code = 45 char = 2;code = 50 char = 5;code = 53 char = 8;code = 56 char = 3;code = 51 char = 1;code = 49 char = ,;code = 44 char = ;code = 32 char = C;code = 67 char = 6;code = 54 char = 5;code = 53 char = 3;code = 51 char = 6;code = 54 char = -;code = 45 char = 3;code = 51 char = 1;code = 49 char = 5;code = 53 char = 1;code = 49 char = 9;code = 57 char = ,;code = 44 char = ;code = 32 char = C;code = 67 char = 7;code = 55 char = 2;code = 50 char = 2;code = 50 char = 3;code = 51 char = -;code = 45 char = 3;code = 51 char = 8;code = 56 char = 0;code = 48 char = 0;code = 48 char = 4;code = 52 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = C;code = 67 char = 7;code = 55 char = 6;code = 54 char = 2;code = 50 char = 9;code = 57 char = -;code = 45 char = 2;code = 50 char = 2;code = 50 char = 0;code = 48 char = 0;code = 48 char = 9;code = 57 char = );code = 41 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = i;code = 105 char = r;code = 114 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = u;code = 117 char = r;code = 114 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = b;code = 98 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = m;code = 109 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = o;code = 111 char = s;code = 115 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = -;code = 45 char = 1;code = 49 char = 0;code = 48 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = (;code = 40 char = C;code = 67 char = 7;code = 55 char = 6;code = 54 char = 2;code = 50 char = 9;code = 57 char = -;code = 45 char = 2;code = 50 char = 2;code = 50 char = 0;code = 48 char = 0;code = 48 char = 9;code = 57 char = );code = 41 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = u;code = 117 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = a;code = 97 char = g;code = 103 char = ;code = 32 char = C;code = 67 char = V;code = 86 char = 0;code = 48 char = 8;code = 56 char = 2;code = 50 char = 9;code = 57 char = 4;code = 52 char = 3;code = 51 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = h;code = 104 char = i;code = 105 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = f;code = 102 char = i;code = 105 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = r;code = 114 char = o;code = 111 char = u;code = 117 char = g;code = 103 char = h;code = 104 char = ;code = 32 char = s;code = 115 char = y;code = 121 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = n;code = 110 char = y;code = 121 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = y;code = 121 char = s;code = 115 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = w;code = 119 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = a;code = 97 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = G;code = 71 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = u;code = 117 char = r;code = 114 char = ;code = 32 char = F;code = 70 char = (;code = 40 char = 1;code = 49 char = );code = 41 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = p;code = 112 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = 5;code = 53 char = 2;code = 50 char = 8;code = 56 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = y;code = 121 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 2;code = 50 char = 9;code = 57 char = 0;code = 48 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = m;code = 109 char = n;code = 110 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = /;code = 47 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = a;code = 97 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = (;code = 40 char = 8;code = 56 char = 1;code = 49 char = 8;code = 56 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = y;code = 121 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = );code = 41 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = l;code = 108 char = i;code = 105 char = m;code = 109 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = c;code = 99 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = 0;code = 48 char = .;code = 46 char = 3;code = 51 char = 7;code = 55 char = &;code = 38 char = #;code = 35 char = 1;code = 49 char = 6;code = 54 char = 0;code = 48 char = ;;code = 59 char = %;code = 37 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = b;code = 98 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = w;code = 119 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = C;code = 67 char = 1;code = 49 char = 7;code = 55 char = 5;code = 53 char = 3;code = 51 char = -;code = 45 char = 3;code = 51 char = 5;code = 53 char = 2;code = 50 char = 0;code = 48 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = C;code = 67 char = 7;code = 55 char = 6;code = 54 char = 2;code = 50 char = 9;code = 57 char = -;code = 45 char = 2;code = 50 char = 2;code = 50 char = 0;code = 48 char = 0;code = 48 char = 9;code = 57 char = .;code = 46 char = ;code = 32 char = M;code = 77 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = C;code = 67 char = 1;code = 49 char = 8;code = 56 char = 4;code = 52 char = 7;code = 55 char = 0;code = 48 char = -;code = 45 char = 2;code = 50 char = 5;code = 53 char = 8;code = 56 char = 3;code = 51 char = 1;code = 49 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = -;code = 45 char = s;code = 115 char = e;code = 101 char = g;code = 103 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = 8;code = 56 char = 1;code = 49 char = 8;code = 56 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = y;code = 121 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = i;code = 105 char = e;code = 101 char = d;code = 100 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = m;code = 109 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = ;code = 32 char = 1;code = 49 char = 9;code = 57 char = 3;code = 51 char = &;code = 38 char = #;code = 35 char = 1;code = 49 char = 6;code = 54 char = 0;code = 48 char = ;;code = 59 char = k;code = 107 char = b;code = 98 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = 2;code = 50 char = 6;code = 54 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = i;code = 105 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = ';code = 39 char = G;code = 71 char = o;code = 111 char = l;code = 108 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = D;code = 68 char = e;code = 101 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = o;code = 111 char = u;code = 117 char = s;code = 115 char = ';code = 39 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = .;code = 46 char = ;code = 32 char = A;code = 65 char = m;code = 109 char = o;code = 111 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = 2;code = 50 char = 6;code = 54 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = r;code = 114 char = e;code = 101 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = u;code = 117 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = L;code = 76 char = A;code = 65 char = T;code = 84 char = E;code = 69 char = R;code = 82 char = A;code = 65 char = L;code = 76 char = ;code = 32 char = O;code = 79 char = R;code = 82 char = G;code = 71 char = A;code = 65 char = N;code = 78 char = ;code = 32 char = B;code = 66 char = O;code = 79 char = U;code = 85 char = N;code = 78 char = D;code = 68 char = A;code = 65 char = R;code = 82 char = I;code = 73 char = E;code = 69 char = S;code = 83 char = ;code = 32 char = (;code = 40 char = L;code = 76 char = O;code = 79 char = B;code = 66 char = );code = 41 char = ;code = 32 char = D;code = 68 char = O;code = 79 char = M;code = 77 char = A;code = 65 char = I;code = 73 char = N;code = 78 char = ;code = 32 char = (;code = 40 char = L;code = 76 char = B;code = 66 char = D;code = 68 char = );code = 41 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 char = c;code = 99 char = r;code = 114 char = i;code = 105 char = p;code = 112 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = f;code = 102 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = k;code = 107 char = n;code = 110 char = o;code = 111 char = w;code = 119 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = r;code = 114 char = o;code = 111 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = o;code = 111 char = p;code = 112 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = ,;code = 44 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = s;code = 115 char = i;code = 105 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = M;code = 77 char = d;code = 100 char = L;code = 76 char = B;code = 66 char = D;code = 68 char = 1;code = 49 char = ,;code = 44 char = ;code = 32 char = M;code = 77 char = d;code = 100 char = L;code = 76 char = B;code = 66 char = D;code = 68 char = 2;code = 50 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = M;code = 77 char = d;code = 100 char = L;code = 76 char = B;code = 66 char = D;code = 68 char = 3;code = 51 char = .;code = 46 char = ;code = 32 char = A;code = 65 char = l;code = 108 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = u;code = 117 char = g;code = 103 char = h;code = 104 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = h;code = 104 char = e;code = 101 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = i;code = 105 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = i;code = 105 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = f;code = 102 char = i;code = 105 char = r;code = 114 char = m;code = 109 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = u;code = 117 char = n;code = 110 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = M;code = 77 char = d;code = 100 char = L;code = 76 char = B;code = 66 char = D;code = 68 char = 1;code = 49 char = -;code = 45 char = 3;code = 51 char = ,;code = 44 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = w;code = 119 char = o;code = 111 char = r;code = 114 char = k;code = 107 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = m;code = 109 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = p;code = 112 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = w;code = 119 char = a;code = 97 char = r;code = 114 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = u;code = 117 char = n;code = 110 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = l;code = 108 char = e;code = 101 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = e;code = 101 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = c;code = 99 char = h;code = 104 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Tree architecture is an important, complex and dynamic trait affected by diverse genetic, ontogenetic and environmental factors. 'Wijcik McIntosh', a columnar (reduced branching) sport of 'McIntosh' and a valuable genetic resource, has been used intensively in apple-breeding programs for genetic improvement of tree architecture. The columnar growth habit is primarily controlled by the dominant allele of gene Co (columnar) on linkage group-10. But the Co locus is not well mapped and the Co gene remains unknown. To precisely map the Co locus and to identify candidate genes of Co, a sequence-based approach using both peach and apple genomes was used to develop new markers linked more tightly to Co. Five new simple sequence repeats markers were developed (C1753-3520, C18470-25831, C6536-31519, C7223-38004 and C7629-22009). The first four markers were obtained from apple genomic sequences on chromosome-10, whereas the last (C7629-22009) was from an unanchored apple contig that contains an apple expressed sequence tag CV082943, which was identified through synteny analysis between the peach and apple genomes. Genetic mapping of these five markers in four F(1) populations of 528 genotypes and 290 diverse columnar selections/cultivars (818 genotypes in total) delimited the Co locus in a genetic interval with 0.37 % recombination between markers C1753-3520 and C7629-22009. Marker C18470-25831 co-segregates with Co in the 818 genotypes studied. The Co region is estimated to be 193 kb and contains 26 predicted gene in the 'Golden Delicious' genome. Among the 26 genes, three are putative LATERAL ORGAN BOUNDARIES (LOB) DOMAIN (LBD) containing transcription factor genes known of essential roles in plant lateral organ development, and are therefore considered as strong candidates of Co, designated MdLBD1, MdLBD2, and MdLBD3. Although more comprehensive studies are required to confirm the function of MdLBD1-3, the present work represents an important step forward to better understand the genetic and molecular control of tree architecture in apple.
Publication: Mol. Genet. Genomics 2012 May ;287(5)::437-50. :doi: 10.1007/s00438-012-0689-5.
Publication Date: 2012 May
Study Author(s): Bai, Tuanhui;Zhu, Yuandi;Fernández-Fernández, Felicidad;Keulemans, Johan;Brown, Susan;Xu, Kenong;
Institution: Department of Horticulture, Cornell University, New York State Agricultural Experiment Station, Geneva, NY 14456, USA.
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Tree architecture is an important, complex and dynamic trait affected by diverse genetic, ontogenetic and environmental factors. 'Wijcik McIntosh', a columnar (reduced branching) sport of 'McIntosh' and a valuable genetic resource, has been used intensively in apple-breeding programs for genetic improvement of tree architecture. The columnar growth habit is primarily controlled by the dominant allele of gene Co (columnar) on linkage group-10. But the Co locus is not well mapped and the Co gene remains unknown. To precisely map the Co locus and to identify candidate genes of Co, a sequence-based approach using both peach and apple genomes was used to develop new markers linked more tightly to Co. Five new simple sequence repeats markers were developed (C1753-3520, C18470-25831, C6536-31519, C7223-38004 and C7629-22009). The first four markers were obtained from apple genomic sequences on chromosome-10, whereas the last (C7629-22009) was from an unanchored apple contig that contains an apple expressed sequence tag CV082943, which was identified through synteny analysis between the peach and apple genomes. Genetic mapping of these five markers in four F(1) populations of 528 genotypes and 290 diverse columnar selections/cultivars (818 genotypes in total) delimited the Co locus in a genetic interval with 0.37 % recombination between markers C1753-3520 and C7629-22009. Marker C18470-25831 co-segregates with Co in the 818 genotypes studied. The Co region is estimated to be 193 kb and contains 26 predicted gene in the 'Golden Delicious' genome. Among the 26 genes, three are putative LATERAL ORGAN BOUNDARIES (LOB) DOMAIN (LBD) containing transcription factor genes known of essential roles in plant lateral organ development, and are therefore considered as strong candidates of Co, designated MdLBD1, MdLBD2, and MdLBD3. Although more comprehensive studies are required to confirm the function of MdLBD1-3, the present work represents an important step forward to better understand the genetic and molecular control of tree architecture in apple.
PMID: 22526430