Phylogeny and evolutionary history of Leymus (Triticeae; Poaceae) based on a single-copy nuclear gene encoding plastid acetyl-CoA carboxylase |
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| Authors: | Xing Fan Li-Na Sha Rui-Wu Yang Hai-Qin Zhang Hou-Yang Kang Cun-Bang Ding Li Zhang You-Liang Zheng Yong-Hong Zhou |
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| Institution: | (1) Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, PR China;(2) Key Laboratory of Crop Genetic Resources and Improvement, Ministry of Education, Sichuan Agricultural University,, Yaan, 625014, Sichuan, PR China;(3) Department of Biology and Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China |
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| Abstract: | Background Single- and low- copy genes are less likely subject to concerted evolution, thus making themselves ideal tools for studying
the origin and evolution of polyploid taxa. Leymus is a polyploid genus with a diverse array of morphology, ecology and distribution in Triticeae. The genomic constitution
of Leymus was assigned as NsXm, where Ns was presumed to be originated from Psathyrostachys, while Xm represented a genome of unknown origin. In addition, little is known about the evolutionary history of Leymus. Here, we investigate the phylogenetic relationship, genome donor, and evolutionary history of Leymus based on a single-copy nuclear Acc1 gene. |
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