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Hybridization and polyploidization can be major mechanisms for plant evolution and speciation. Thus, the process of polyploidization and evolutionary history of polyploids is of widespread interest. The chloroplast DNA regionsmatK was used to analyze to phylogenetic relationships and maternal donor of Elymus species and their closely related species. The Neighbor-Joining phylogenetic reconstructions...
To evaluate the phylogenetic relationships of species in Pseudoroegneria and related genera, the nuclear ribosomal internal transcribed spacer (ITS) sequences were analyzed for eighteen Pseudoroegneria (St), two Elytrigia (EeSt), two Douglasdeweya (StP), three Lophopyrum (Ee and Eb), three Agropyron (P), two Hordeum (H), two Australopyrum (W) and two Psathyrostachys (Ns) accessions. The main...
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