Article
Intrinsic karyotype stability and gene copy number variations may have laid the foundation for tetraploid wheat formation.
Proceedings of the National Academy of Sciences of the United States of America - 26 Nov 2013
Zhang Huakun, Bian Yao, Gou Xiaowan, Dong Yuzhu, Rustgi Sachin, Zhang Bangjiao, Xu Chunming, Li Ning, Qi Bao, Han Fangpu, von Wettstein Diter, Liu Bao
Abstract excerpt
Polyploidy or whole-genome duplication is recurrent in plant evolution, yet only a small fraction of whole-genome duplications has led to successful speciation. A major challenge in the establishment of nascent polyploids is sustained karyotype instability, which compromises fitness. The three putative diploid progenitors of bread wheat, with AA, SS (S ∼ B), and DD genomes occurred sympatrically, and their...
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