A SNP Genetic Linkage Map Based on F2 Population Genotyping in Soybean, Glycine max (L.) Merrill

This study reports a low density genetic linkage map based on 7 x 7 F2 population of soybean, Glycine max (L.) Merrill and constructed with single nucleotide polymorphism (SNP) markers. 50 SNP markers were used to screen the DNA samples of the soybean out of which only 32 were polymorphic with the samples. These 32 SNP markers were mapped using the Mapchart of WINQTL CART. Vsn 2.5 and the SNPs were distributed on 13 LGs (linkage groups) among the 20 chromosomes of the soybean genome. The total map length was just 2211.46cM with an average marker density of 905.86cM. This SNP based genetic linkage map of soybean could be used to map quantitative trait loci (QTL) for important agronomic characters in soybean.