Molecular evolution of Wcor15 gene enhanced our understanding of the origin of A, B and D genomes in Triticum aestivum

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dc.creator Liu, Fangfang
dc.creator Si, Hongqi
dc.creator Wang, Chengcheng
dc.creator Sun, Genlou
dc.creator Zhou, Erting
dc.creator Chen, Can
dc.creator Ma, Chuanxi
dc.date.accessioned 2018-02-06T14:06:26Z
dc.date.available 2018-02-06T14:06:26Z
dc.date.issued 2016-08-16
dc.identifier.issn 2045-2322
dc.identifier.uri http://library2.smu.ca/handle/01/27268
dc.description Publisher's Version/PDF
dc.description.abstract The allohexaploid bread wheat originally derived from three closely related species with A, B and D genome. Although numerous studies were performed to elucidate its origin and phylogeny, no consensus conclusion has reached. In this study, we cloned and sequenced the genes Wcor15-2A, Wcor15-2B and Wcor15-2D in 23 diploid, 10 tetraploid and 106 hexaploid wheat varieties and analyzed their molecular evolution to reveal the origin of the A, B and D genome in Triticum aestivum. Comparative analyses of sequences in diploid, tetraploid and hexaploid wheats suggest that T. urartu, Ae. speltoides and Ae. tauschii subsp. strangulata are most likely the donors of the Wcor15-2A, Wcor15-2B and Wcor15-2D locus in common wheat, respectively. The Wcor15 genes from subgenomes A and D were very conservative without insertion and deletion of bases during evolution of diploid, tetraploid and hexaploid. Non-coding region of Wcor15-2B gene from B genome might mutate during the first polyploidization from Ae. speltoides to tetraploid wheat, however, no change has occurred for this gene during the second allopolyploidization from tetraploid to hexaploid. Comparison of the Wcor15 gene shed light on understanding of the origin of the A, B and D genome of common wheat. en_CA
dc.language.iso en en_CA
dc.publisher Nature Publishing Group en_CA
dc.relation.uri https://dx.doi.org/10.1038/srep31706
dc.rights Creative Commons Attribution License 4.0
dc.subject.lcsh Wheat -- Genetics
dc.subject.lcsh Wheat -- Origin
dc.subject.lcsh Wheat -- Evolution
dc.title Molecular evolution of Wcor15 gene enhanced our understanding of the origin of A, B and D genomes in Triticum aestivum en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Scientific Reports 6, 31706. (2016) DOI: 10.1038/srep31706 en_CA


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Published Version: https://dx.doi.org/10.1038/srep31706
 
 

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