Chin Bull Bot ›› 2009, Vol. 44 ›› Issue (05): 556-561.doi: 10.3969/j.issn.1674-3466.2009.05.005

• 研究报告 • Previous Articles     Next Articles

Genetic Diversity Analysis by Simple Sequence Repeats of Soybean (Glycine max) Varieties from Heilongjiang

Yunlai Gao1, Bingchen Yao 1, Chunyan Liu1, 2, Wenfu Li1, Hongwei Jiang1, Candong Li1, Wenbo Zhang1, Guohua Hu2, 3*, Qingshan Chen1*   

  1. 1College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
    2The Crop Research and Breeding Center of Land-reclamation, Harbin 150090, China
  • Received:2008-10-27 Revised:2009-03-13 Online:2009-09-01 Published:2009-09-01
  • Contact: Guohua Hu, Qingshan Chen

Abstract:

In this study, we selected 83 cultivars, including Hefeng 25, from 13 breeding units of Heilongjiang Province. We amplified 43 of 100 simple sequence repeats (SSRs), which distributed on 20 linkage groups of the soybean genetic map. In total, 157 polymorphic alleles were detected in 43 pairs of SSR primers. For each primer , 2 to 7 alleles (mean 3.65 alleles) were detected in all cultivars. Cluster analysis revealed most of the varieties bred by the same breeding unit with high genetic similarity. Pairwise genetic similarity coefficients ranged from 0.216 to 0.937 (mean 0.638 4), which indicated that the genetic basis of soybean varieties from Heilongjiang province were narrow. The genetic composition can be broadened by introducing diverse and distant cultivars as parents in soybean breeding.

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