Submitted to: Biennial Conference on Molecular and Cellular Biology of the Soybean
Publication Type: Abstract Only
Publication Acceptance Date: September 15, 1998
Publication Date: N/A
Technical Abstract:
The purpose of this report is to summarize the current status of the integrated SSR/RFLP/classical marker linkage map of the soybean and to solicit information regarding the map position or putative map position of classical genetic loci i.e., loci controlling color, pigmentation, morphological traits, disease resistances, male sterility, etc. In December of 1997 a total of 600+ SSR loci were publicly released. These consist mainly of loci with ATT, trinucleotide core motifs. Each of these loci was mapped in at least one of three mapping populations: USDA/Iowa State G. max x G. soja F2 population; the Univ. of Utah Minsoy x Noir 1 recombinant inbred population; and the Univ. of Nebraska Clark x Harosoy F2 population. Each SSR mapped to a single locus in the genome, with a map order that was essentially identical in each population. Many SSR loci were segregating in two or all three populations. Thus, it was relatively simple to align the 20+ linkage groups derived from each of the three populations into a consensus set of 20 homologous linkage groups which were presumed to correspond to the 20 pairs of soybean chromosomes. A total of more than 500 RFLP loci are also included in the three maps. The integrated map contains a number of intervals of greater than 20 cM in which no SSR loci are positioned
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