Authors: KeJing Wang XiangHu Li MaoFen Yan
Publish Date: 2014/01/25
Volume: 15, Issue: 3, Pages: 605-618
Abstract
Wild soybean individuals were sampled from ten habitat sites in Beijing region China and were assessed using 36 SSR markers for the genetic variation among the habitat subpopulations AMOVA analysis showed 5746 interpopulation and 4254 intrapopulation genetic variation The genetic variation had geographical regionality The droughtstressed and founder subpopulations intensively reduced genetic diversity and alongriver system habitats appeared to have closer genetic similarity The bottleneck impact of drought stress appeared to be inferior to the founding effect on subpopulation genetic diversity but superior on genetically geographical grouping Here all the subpopulations were found to contain unique alleles The phenotypic and genetic diversities had similarly fluctuated patterns across the subpopulations These results here suggest that a conservation strategy should be taken theoretically as many as possible populations are sampled to maximize the genetic diversity in ex situ conservation of wild soybean within an area in China Spatial distance should be considered for isolating wild soybean populations when genetically modified soybeans are cultivated in ChinaThis work was supported by projects “Crop Germplasm Resources Protection Item no 213013509” and “Environmental and Biosafety Assessment of Transgenic Maize Soybean and Wheat Item no 2014ZX08011003” of Agricultural Sciences from the Ministry of Agriculture of the People’s Repubic of China and “Sci Teck Innovation Program of Chinese Academy of Agricultural Sciences”
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