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Genetically Modified Crop hybridization/introgression

Zili Wei, Meng Wang, Shihao Chang, Chao Wu, Peifa Liu, Jinling Meng, Jun Zou
Brassica juncea (A(j)A(j)B(j)B(j)), is an allotetraploid that arose from two diploid species, B. rapa (A(r)A(r)) and B. nigra (B(n)B(n)). It is an old oilseed crop with unique favorable traits, but the genetic improvement on this species is limited. We developed an approach to broaden its genetic base within several generations by intensive selection. The A(r) subgenome from the Asian oil crop B. rapa (A(r)A(r)) and the B(c) subgenome from the African oil crop B. carinata (B(c)B(c)C(c)C(c)) were combined in a synthesized allohexaploid (A(r)A(r)B(c)B(c)C(c)C(c)), which was crossed with traditional B...
2016: Frontiers in Plant Science
Zheng-Jun Guan, Peng-Fei Zhang, Wei Wei, Xiang-Cheng Mi, Ding-Ming Kang, Biao Liu
Gene flow from genetically modified (GM) crops to wild relatives might affect the evolutionary dynamics of weedy populations and result in the persistence of escaped genes. To examine the effects of this gene flow, the growth of F1 hybrids that were formed by pollinating wild soybean (Glycine soja) with glyphosate-tolerant GM soybean (G. max) or its non-GM counterpart was examined in a greenhouse. The wild soybean was collected from two geographical populations in China. The performance of the wild soybean and the F2 hybrids was further explored in a field trial...
2015: AoB Plants
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