华中师范大学学报（自然科学版）2011，Vol.45Issue(1)：108-112,5.
四棱豆属7个栽培种ITS序列亲缘关系分析
Phylogenetic relationship analysis of seven cultivars of Psophocarpus Neck.based on ITS sequences of nrDNA
摘要
Abstract
Phylogenetic relationship of seven cultivars of Psophocarpus Neck.were estimated based on nrDNA ITS by using MEGA4.0 software in the study.The results showed: (1)The ITS sequences had a small variation intested materials, the content of GC was low,from 51.4％ to 51.6％.(2) the range of genetic variation is from 0.0000～0.0009 among different Psophocarpus tetragonolobus,the sequence data revealed considerable variation, but the mutation rate was low, the seven cultivars of Psophocarpus Neck.had a near relationship, (3) In the three clustering tree K0021 showed belonging to different cultivars compaired with other cultivar.Z8 and M8 in the three trees were all clustered in the same branch, also S3 and M7, there was a close relationship between Z8 and M8, so was S3 and M7.The research showed the relationship was far between Psophocarpus tetragonolobus and Phaseolus coccineus L..The study provided reference for classification of Psophocarpus Neck..关键词
四棱豆属/ITS序列/亲缘关系分析Key words
Psophocarpus Neck/ ITS sequence/ Phylogenetic relationships analysis分类
农业科技引用本文复制引用
蒋向辉,佘朝文,许栋,陈东明..四棱豆属7个栽培种ITS序列亲缘关系分析[J].华中师范大学学报（自然科学版）,2011,45(1):108-112,5.基金项目
湖南省教育厅资助项目(07C502)、(09C755) （07C502）
湖南省科研计划重点资助项目(2009FJ2008). （2009FJ2008）
