Detecting SNPs underlying domestication-related traits in soybean

文献类型: 外文期刊

第一作者: Li, Ying-Hui

作者: Li, Ying-Hui;Ma, Yan-Song;Chang, Ru-Zhen;Qiu, Li-Juan;Reif, Jochen C.;Jackson, Scott A.;Ma, Yan-Song

作者机构:

关键词: Soybean;Interspecific differentiation;Outliers;Selection;Testa color

期刊名称:BMC PLANT BIOLOGY ( 影响因子:4.215; 五年影响因子:4.96 )

ISSN: 1471-2229

年卷期: 2014 年 14 卷

页码:

收录情况: SCI

摘要: Background: Cultivated soybean (Glycine max) experienced a severe genetic bottleneck during its domestication and a further loss in diversity during its subsequent selection. Here, a panel of 65 wild (G. soja) and 353 cultivated accessions was genotyped at 552 single-nucleotide polymorphism loci to search for signals of selection during and after domestication. Results: The wild and cultivated populations were well differentiated from one another. Application of the F-st outlier test revealed 64 loci showing evidence for selection. Of these, 35 related to selection during domestication, while the other 29 likely gradually became monomorphic as a result of prolonged selection during post domestication. Two of the SNP locus outliers were associated with testa color. Conclusions: Identifying genes controlling domestication-related traits is important for maintaining the diversity of crops. SNP locus outliers detected by a combined forward genetics and population genetics approach can provide markers with utility for the conservation of wild accessions and for trait improvement in the cultivated genepool.

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