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.

Su su
  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

 

 

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