The following tables are compiled for the benefit of those using or wanting to use the sugary and waxy series of translocations for the study of economic or other characters in maize. The data included in tables 1 and 2 are the per cent of crossing over with su or wx in the heterozygous translocation plants, the position of the break in the other chromosome, and which alleles of Su su or Wx wx are present in each translocation. Tables 3 and 4 give a list of new semisteriles which small test plantings have shown to be linked to su or wx.
Table 1. Translocations closely linked with sugary.
Crossing over with su |
Chromosome | Cytological position |
Linkage | Gene Combinations available |
|
1-4a | 3.0 | 1 | br-20-T-45-bm2 | Su su | |
2-4(K-10) | (2.) | 2 | near B (�8) | Su su | |
2-4(C-31) | close | 2 | near B (�17) | Su | |
2-4a | 3.5 | 2 | 2L.2 | B-T-1.5-√4 | Su su |
2-4C | 9.2 | 2 | √4--19.0-T-29.2-Ch | Su su | |
2-4(A-29) | 6.1 | 2 | √4--22.3-T | Su su | |
4-5C | 1.1 | 5 | bm-3.5-T-15.5-pr | Su | |
4-5d | 1.9 | 5 | bm-2.5-T-5.5-pr | Su su | |
4-5(X-6-77) | 9.0 | 5 | pr �16.4 | Su su | |
4-6a | 4.5 | 6 | 6L.3 | very close to Y | Su su |
4-6C | 2. | 6 | very close to Y | Su | |
4-7a | close | 7 | 7L.3 | near ra and gl | Su |
4-8a | close | 8 | 8L.1 | T-34-ms8-j | Su su |
4-9(F-22) | 4.2 | 9 | c-wx-6.9-T | Su su | |
4-9a | 3. | 9 | 9L.8 | c-wx-11.5-T | Su su |
20 | c-wx-31.0-T | ||||
4-9(A-26) | close | 9 | not tested | Su | |
4-10 b | 4.0 | 10 | near g | Su su | |
4-10(B-45) | close | 10 | T-8.8-g-R | Su | |
1,3,4,5,(B-2) | close | 1,3,5 | 1 not tested, 3 near ts4, 5 near bm |
Su su |
Table 2. Translocations closely linked with waxy.
Crossing over with wx |
Chromosome | Cytological position |
Linkage | Gene combinations |
|
1-9C | 12.1 | 1 | 1S 6 | P-0.8-T | Wx wx |
1-9a | 11.2 | 1 | 1S | P-21.2-T-35.6-br | Wx Wx |
2-9b | 7.5 | 2 | 2S.1 | ts1-5.3-T-7.8-�4 | Wx wx |
3-9a | 3.6 | 3 | near ts4 | Wx wx | |
3-9C | 7.6 | 3 | 3L.1 | near ts4 | Wx wx |
3-9b | 6.8 | 3 | lg2-7.9-T-18.0-a1 | Wx wx | |
4-9 (F-22) | 6.9 | 4 | su-4.2-T-Tu | Wx wx | |
4-9b | 3.1 | 4 | 4L.6 | su-Tu-gl3-21.9-T | Wx wx |
5-9a | 2.0 | 5 | 5L.6 | bm1-pr-25-T | Wx wx |
5-9 (X-14-111) | near wx | 5 | (near pr) | wx | |
6-9a | 9.4 | 6 | 6S. | T-12.9-Y-Pl | Wx wx |
6-9b | 3.8 | 6 | near Y | Wx wx | |
6-9 (a-66) | 12.2 | 6 | near Y | Wx wx | |
6-9 (X-25-78) | 3.4 | 6 | near Y | Wx wx | |
8-9a | 13.7 | 8 | 8L.2 | T-30-ms8-j | Wx wx |
9-10b | 5.7 | 10 | T-8.8-g-R | Wx wx | |
9-10a | 4.5 | 10 | 10L.9 | g-R-3.2-T | Wx wx |
Table 3. New semisteriles linked with sugary.
Backcrosses with su | |||
Total | Crossovers | Gene Combinations |
|
a-57 | 36 | 0 | Su |
I-10 | 38 | 3 | su |
K-17 | 107 | 3 | Su su |
X-1-1 | 39 | 3 | Su su |
X-2-64 | 36 | 2 | Su su |
X-17-108 | near su | su | |
X-19-5 | near su | su | |
X-47-41 | 39 | 0 | su |
X-57-31 | 30 | 1 | su |
Table 4. New semisteriles linked with waxy.
Backcrosses with wx | |||
Total | Crossovers | Gene Combinations |
|
a-76 | 34 | 2 | Wx |
F-24 | 96 | 7 | Wx wx |
bp | near wx | wx | |
X-7-39 | 40 | 3 | Wx wx |
X-10-6 | 37 | 0 | wx |
X-11-73 | 37 | 5 | Wx wx |
X-22-92 | 39 | 1 | Wx wx |
X-23-158 | 39 | 5 | Wx wx |
X-26-8 | 35 | 2 | Wx wx |
E. G. Anderson