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Natural introgression from cultivated soybean (Glycine max) into wild soybean (Glycine soja) with the implications for origin of populations of semi-wild type and for biosafety of wild species in China

文献类型： 外文期刊

作者： Wang, Ke-Jing 1 ; Li, Xiang-Hua 1 ; Zhang, Ji-Jun 2 ; Chen, Hong 2 ; Zhang, Zhi-Liang 2 ; Yu, Guo-Dong 2 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China

2.Chongqing Acad Agr Sci, Inst Characterist Crops Res, Chongqing 402160, Peoples R China

关键词： genotype;population dynamics;gene flow;genetic diversity;population origin;natural introgression;species biosafety;gene pool safety

期刊名称：GENETIC RESOURCES AND CROP EVOLUTION （ 影响因子：1.524； 五年影响因子：1.713 ）

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收录情况： SCI

摘要： Introgression from soybean cultivars to its wild progenitor species is an interesting antidromic recombination in natural ecosystem with many consequences, including the alteration of genetic diversity, the origin of semi-wild soybean, and implication for biosafety of the wild progenitor species with future release of the genetically modified varieties. Although such interspecific introgression is not suspected to be ubiquitous in the sympatric regions of wild and cultivated soybeans, the documentations published based on some molecular experimental analyses on the introgression have been little substantiated by the occurring process morphologically and remain deficient for unquestionable evidence, owing to the lack of actual insight into the population dynamics. Here, we found the phenomenon of gene escape and presented the evidence for occurrence of introgression from soybeans into the wild species and for how originates about the semi-wild type soybean based on morphological investigation of population dynamics. Our results suggest that more attention should be paid to the escape of genetically modified genotypes to safeguard the biosafety of wild soybean gene pool, if GM soybeans are released in China, the place of origin of cultivated soybeans.

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