Maternal donors of polyploids in Pseudoroegneria (Poaceae: Triticeae) and related genera inferred from chloroplast trnL-F sequences

作者：Yu Hai-Qing; Zhang Chun; Ding Chun-Bang; Ma Xiao; Zhou Yong-Hong^*

来源：Turkish Journal of Biology, 2010, 34(4): 335-342.

DOI：10.3906/biy-0810-15

• Pseudoroegneria
• Douglasdeweya
• Roegneria
• Elytrigia
• chloroplast trnL-F

To investigate the maternal donors and phylogenetic relationships of polyploids in Pseudoroegneria and related genera, the chloroplast trnL-F sequences of 31 Triticeae accessions were analyzed. The substitution saturation analysis of trnL-F sequences in this study suggested that they are suitable for phylogenetic analysis. In the trnL-F sequences tree, 4 major clades were formed: (a) the St/E clade comprised all of the Pseudoroegneria species together with species in Roegneria, Elytrigia, Douglasdeweya and Lophopyrum; (b) A. cristatum, A. mongolicum, and A. pectinatum subsp. retrofractum formed the P/W clade; (c) the Ns clade included species in Psathyrostachys; and (d) the H clade consisted of Hordeum species. The results suggested that: (a) diploid Pseudoroegneria species were the maternal donors of St-containing polyploid species in Pseudoroegneria, Roegneria, Douglasdeweya, and Elytrigia, and the trnL-F sequences were highly similar among them; (b) the trnL-F sequences of Agropyron species and Australopyrum species wer

• 出版日期2010
• 单位四川农业大学