Simple sequence repeats (SSRs) are useful DNA markers in plant genetic research. However, they are not fully exploited in peanut because of the high cost and labor intensity involved in their development. Many studies have showed that DNA markers could be transferable among related species due to the conserved regions in their genomes. The objective of this study was to investigate the transferability of soybean SSR markers to peanut because of the availability of a large number of soybean SSRs. Four hundred thirty-two soybean SSR primer pairs were used to amplify peanut genomic DNAs extracted from four cultivated peanut lines. The result showed that 25% of soybean SSR primer pairs tested in this study could amplify peanut genomic DNA. Among these transferable SSR markers, 28% have detected polymorphism among these peanut lines. These transferable markers will benefit peanut genome research by not only providing additional DNA markers in peanut, but also allowing comparative mapping to be possible between peanut and soybean.
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He et al. (2006) studied this question.
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