| 从rbcL序列探讨单室茱萸属的系统位置 |
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| 引用本文： | 李耀利,朱华,杨俊波.从rbcL序列探讨单室茱萸属的系统位置[J].云南植物研究,2002,24(3):352-358. |
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| 作者姓名： | 李耀利 朱华 杨俊波 |
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| 作者单位： | 1. 中国科学院西双版纳热带植物园昆明分部,云南,昆明,650223
2. 中国科学院昆明植物研究所,云南,昆明,650204 |
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| 基金项目： | 云南省自然科学基金 98C0 96M，中科院百人计划，中科院KSCX2 - 1- 0 6B课题支持项目 |
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| 摘 要： | 为了探讨单室茱萸属Mastixia的系统位置，本文对八蕊单室萸（Mastixia euony moides)，云南单室茱萸（M.pentandra subsp,chinensis)及近缘物种云南紫树（Nyssa yunnanensis)和毛八角枫（Alangium kurzii)的cpDNA中编码1，5－二磷酸核酸糖羧化酶大亚基的rbcL基因序列进行了双脱氧测定。通过对这些序列与广义山茱萸科Cornaceae和Mastixia曾被归入的科的类群的rbcL序列进行PAUP（Phylogenetic Analysis Using Parsimony)分析，得到24棵最简约的分支树图。PAUP分析表明单室茱萸属与马蹄参属Diplopanax，紫树属Nyssa，喜树属Camptotheca和珙桐属Davidia的亲缘关系最近，并由分支图支持可以将Mastixia提升为山茱萸目Cornales中的一个科－单室萸科Masstixiaceae。
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| 关 键 词： | rbcL序列 单室茱萸属 系统位置 |
| 文章编号： | 0253-2700(2002)03-0352-07 |
| 修稿时间： | 2001年5月28日 |
Systematic Position of the Genus Mastixia:Evidence from rbcL Gene Sequences |
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| LI Yao Li ,ZHU Hua ,YANG Jun Bo.Systematic Position of the Genus Mastixia:Evidence from rbcL Gene Sequences[J].Acta Botanica Yunnanica,2002,24(3):352-358. |
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| Authors: | LI Yao Li ZHU Hua YANG Jun Bo |
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| Institution: | LI Yao Li 1,ZHU Hua 1,YANG Jun Bo 2 |
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| Abstract: | In order to reveal the phylogenetic position of Mastixia ,the rbc L sequences of two species of Mastixia ( M pentandra ssp. chinensis and M euonymoides ) and other two possible close affinities Nyssa yunnanensis and Alangium kurzii were sequenced.PAUP analysis was made based on our sequences and some other rbc L sequences of taxa of Cornaceae sensu lato and some families,which Mastixia was ever placed in,from Gene Bank database.24 most parsimonious trees were obtained.It is revealed that the genus Diplopanax and the family Nyssaceae (Nyssa,Camptotheca,Davidia ) have the closest affinities to Mastixia from the trees.Our results support that the genus Mastixia can be given a family state in Cornales. |
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| Keywords: | Mastixia rbc L sequences Phylogeny |
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