Integrative Biology Journals
Plant Diversity

Plant Diversity ›› 2009, Vol. 31 ›› Issue (02): 127-137.DOI: 10.3724 SP.J.1143.2009.08189

• Articles • Previous Articles     Next Articles

Phylogenetic Relationships within the Orychophragmus violaceus Complex (Brassicaceae) Endemic to China

ZHOU Li-Rong , YU Yan , SONG Rong-Xiu , HE Xin-Jin, JIANG Yan , LI Xu-Feng, YANG Yi   

  1. Key Laboratory of Bio-Resources and Eco-Environment , Ministry of Education, College of Life Science, Sichuan University , Chengdu 610064 , China
  • Received:2008-10-17 Online:2009-04-25 Published:2009-04-25
  • Contact: YANG Yi

中国特有诸葛菜复合群的系统发育关系

周丽蓉, 余 研, 宋荣秀, 何兴金, 蒋 彦, 李旭锋, 杨 毅   

  1. 四川大学生命学院生物资源与环境教育部重点实验室, 四川成都 610064
  • 通讯作者: 杨 毅

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Abstract: A first insight into the phylogenetic analysis of the Orychophragmus violaceus complex was constructed from complete sequences of nuclear ribosomal DNA internal transcribed spacer regions (ITS􊄯5. 8S) and chloroplast gene matK . The ITS results strongly supported the division of the O. violaceus complex into two major groups : one is composed of O. hupehensis, O. taibaiensis, the other consists of O. violaceus and O. diffusus . The matK phylogenetic trees showed O. diffusus and O. violaceus were the basal members of the complex . From previous karyotype study and the present results , we
considerated that the groups of O. hupehensis and O. taibaiensis should not be allocated in O. violaceus . And two possible ancestral cytotypes were also confirmed by our phylogenetic analysis .Moreover, the biogeographic analysis implied a presumed center of recent differentiation in the region from upper to mid Changkiang River to Qin Mountain .

Key words: Biogeography

摘要： 利用5 .8S 核糖体DNA 全长间隔序列( ITS􊄯5 . 8S) 和叶绿体基因matK 对中国原产诸葛菜复合群的系统发育关系进行了分析研究。ITS 序列结果支持中国诸葛菜复合群分为两支: 一支由湖北诸葛菜和太白诸葛菜组成; 另一支由诸葛菜和铺散诸葛菜组成。matK 的序列分析结果表明, 在中国诸葛菜复合群的系统发育树中, 铺散诸葛菜和诸葛菜处于基部位置。结合以前的核型分析和本文的研究结果, 我们不支持将湖北诸葛菜和太白诸葛菜归隶于诸葛菜, 而支持我们之前提出的两种可能的原始细胞型的进化假说。另外,根据生物地理学分析, 推测从长江中下游到秦岭地区是中国原产诸葛菜的近代分化中心。

关键词: ITS, matK, 诸葛菜, 生物地理学, 系统发育关系

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