Phylogenetic relationship of Leymus chinensis revealed by the ITS and chloroplast trnL‐Fsequences
Based on morphological observation, meiotic chromosome pairing of intergeneric hybrids, DNA hybridization patterns, and variation in repeated nucleotide sequences, previous studies have concluded that one genome in Leymus species originated from the genus Psathyrostachys (Wang et al,2006).Despite decades of intensive research, the precise phylogenetic relationship of L.chinensis is still unclear.The nuclear and chloroplast/mitochondrial sequences was used in many molecular phylogenetic studies for elucidating the origins and evolutionary history of polyploidy in plants,clarified their parental lineages.Particularly, internal transcribed spacers ( ITS) and the intergenic spacer of trnL‐trnF have been used widely in studying phylogenetic and genomic relationships of the diploid Poaceae genera.With additional abundant available sequences in public databases, ITS and trnL‐trnF are the optimal choices in this study.
Leymus chinensis Psathy rostachys Xm genome ITS chloroplast trnL‐F
G.S.Liu Z.P.Liu
Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）