Abstract
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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Acknowledgments
This work was supported by the “Natural Science Foundation of Chongqing” (Item No: CSTC, 2009BA1033) and by the “Environmental and Biosafety Assessment of Transgenetic Maize, Soybean and Wheat”, the Chinese Ministry of Agriculture (Item No. 2008ZX08011-003).
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Wang, KJ., Li, XH., Zhang, JJ. et al. 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. Genet Resour Crop Evol 57, 747–761 (2010). https://doi.org/10.1007/s10722-009-9513-4
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DOI: https://doi.org/10.1007/s10722-009-9513-4