Linkage betwen the male sterility gene (ms1) and a translocation breakpoint in soybean, Glycine max

1984 ◽  
Vol 26 (4) ◽  
pp. 401-404 ◽  
Author(s):  
Jerome M. Sacks ◽  
Kiyoshi Sadanaga

The F2 distribution of male sterility (ms1) and flower color (w1) in a cross between translocation 172-11-3 (W1W1Ms1Ms1) and A77-139 (w1w1Ms1ms1) in soybean, Glycine max (L.) Merr., was highly abnormal. Duplicate-deficient and 41-chromosome progenies constituted 32% of the F2 population. The w1, and ms1 loci are located on the translocation exchange chromosomes designated T1 and T2, respectively. Evidence from other translocations suggests that linkage group 8 (LG8) is located on the single satellited normal chromosome designated NI. The breakpoint lies between the ms1 and w1, loci with recombination values of 18.4 ± 3.3% and 2.0 ± 1.2%, respectively.Key words: linkage, translocation, soybean, Glycine.

1977 ◽  
Vol 19 (4) ◽  
pp. 749-751 ◽  
Author(s):  
R. I. Buzzell ◽  
B. R. Buttery ◽  
R. L. Bernard

Magenta flower color in soybeans (Glycine max (L.) Merr.) was found to be controlled by a mutant gene, wm, in the presence of W1 which is the common gene for purple flowers. These two genes are closely linked (2.2 ± 0.7% recombination) and are members of what is proposed as Linkage Group 8. The wm reduces flavonol content of flowers and of leaves, and is a deleterious mutant in terms of photosynthetic rate and bean yield.


Plant Gene ◽  
2019 ◽  
Vol 19 ◽  
pp. 100186
Author(s):  
Sai Rekha Kadirimangalam ◽  
Rahman Hifzur ◽  
Saraswathi R ◽  
Kumar M ◽  
Raveendran M ◽  
...  

2020 ◽  
Vol 10 (4) ◽  
pp. 1309-1318
Author(s):  
Tzu-Kai Lin ◽  
Ya-Ping Lin ◽  
Shun-Fu Lin

Male sterility has been widely used in hybrid seed production in Brassica, but not in B. rapa ssp. chinensis, and genetic models of male sterility for this subspecies are unclear. We discovered a spontaneous mutant in B. rapa ssp. chinensis. A series of progeny tests indicated that male sterility in B. rapa ssp. chinensis follows a three-allele model with BrMsa, BrMsb, and BrMsc. The male sterility locus has been mapped to chromosome A07 in BC1 and F2 populations through genotyping by sequencing. Fine mapping in a total of 1,590 F2 plants narrowed the male sterility gene BrMs to a 400 kb region, with two SNP markers only 0.3 cM from the gene. Comparative gene mapping shows that the Ms gene in B. rapa ssp. pekinensis is different from the BrMs gene of B. rapa ssp. chinensis, despite that both genes are located on chromosome A07. Interestingly, the DNA sequence orthologous to a male sterile gene in Brassica napus, BnRf, is within 400 kb of the BrMs locus. The BnRf orthologs of B. rapa ssp. chinensis were sequenced, and one KASP marker (BrMs_indel) was developed for genotyping based on a 14 bp indel at intron 4. Cosegregation of male sterility and BrMs_indel genotypes in the F2 population indicated that BnRf from B. napus and BrMs from B. rapa are likely to be orthologs. The BrMs_indel marker developed in this study will be useful in marker-assisted selection for the male sterility trait.


2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Jingxu Zhang ◽  
Zuomei Lu ◽  
Weimin Dai ◽  
Xiaoling Song ◽  
Yufa Peng ◽  
...  

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