Genome origin and phylogenetic relationships of Elymus villosus (Triticeae: Poaceae) based on single-copy nuclear Acc1, Pgk1, DMC1 and chloroplast trnL-F sequences

Publication date: February 2017 Source:Biochemical Systematics and Ecology, Volume 70 Author(s): Chao Tang, Jie Qi, Ning Chen, Li-Na Sha, Yi Wang, Jian Zeng, Hou-Yang Kang, Hai-Qin Zhang, Yong-Hong Zhou, Xing Fan To investigate the genome origin and phylogenetic relationships of Elymus villosus, three single-copy nuclear gene (Acc1, Pgk1 and DMC1) and chloroplast trnL-F gene sequences of two accessions of E. villosus were analyzed with those of eighteen allotetraploids (StH, StY, StP and StEe genomes) and thirty-five diploid taxa representing eighteen basic genomes in Triticeae. The results revealed that: (1) the genomic constitution of E. villosus is StH as Elymus; (2) North America Pseudoroegneria species served as the maternal donor during the allotetraploid speciation of E. villosus; (3) E. villosus is closely related to North America Elymus species; (4) it is reasonable to recognize the E. villosus as Elymus L. sensu stricto.

Source: Biochemical Systematics and Ecology - November 29, 2016 Category: Biochemistry Source Type: research