Soybean genes Rj2, Rmd, and Rps2 in linkage group 19

Article Abstract:

Four Glycine max genes were evaluated for linkage. These are the gene conferring non-nodulation, Rj2, the gene for Microsphaera diffusa resistance, Rmd, the gene for Phytophthora resistance, Rps2 and the gene for trypsin inhibition in seeds, Ti. A cross designed to detect segregation of the four genes was made. Results indicate that Ti segregates independently but the other three are linked. Recombination values for the linked genes are presented.

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Isozyme screening of near-isogenic male sterile soybean lines to uncover potential linkages: linkage of the Pgm 1 and ms2 loci

Article Abstract:

18 ms1 and ms2 male sterile soybean near-isogenic lines were screened for residual donor parent alleles to find linkages between the male sterile loci and 12 isozyme loci. Results indicated the presence of five putative linkages based on the existence of 13 male sterile near-isogenic lines having donor parent alleles. A linkage between Pgm 1 and ms2 loci was observed, but it was not enough to effect favorable indirect selection.

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Assignment of Est1 locus to soybean linkage group 4

Article Abstract:

Linkage analysis was performed on the first to third filial generation of a cross between the Shiratsurunoko and Suzuhime soy bean cultivars to determine the relationship among the loci for esterase (Est1), diaphorase, endopeptidase (Enp), isocitrate dehydrogenase, phosphoglucomutase, leaf shape (Ln) and flower or hypocotyl color. Results indicate that Est is linked with the group 4 linkage together with Ln and Enp.

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