基于trnL-F序列探讨杠板归Polygonum perfoliatum的系统位置  

Phylogenetic Origin of Polygonum perfoliatum Inferred from Plastid trnL-F Sequences

作　　者：许崇梅[1,2] 曲畅游 于文光[2,4] 张学杰[2] 李法曾[2] 

机构地区：[1]潍坊医学院,山东潍坊261053 [2]山东师范大学生命科学学院,济南250014 [3]山东药品食品职业学院,山东威海264400 [4]山东胜利股份有限公司,济南250101

出　　处：《武汉植物学研究》2009年第3期262-265,共4页Journal of Wuhan Botanical Research

基　　金：国家自然科学基金资助项目(30270107);潍坊医学院博士科研启动金资助项目(021258)

摘　　要：杠板归(Polygonum perfoliatum L.)的系统位置一直存在争议,文中以塔黄为外类群,采用最大简约法对杠板归及其近缘类群的trnL-F序列进行了系统发育分析,结果表明:(1)杠板归和刺蓼为姊妹群,自展分析的支持率为99%,分子证据支持杠板归归入刺蓼组,而没有必要单立组或属。(2)刺蓼组、春蓼组和头状蓼组植物聚在一起,自展支持率为100%,说明它们之间有很近的亲缘关系。The systematic position of Polygonum perfoliatum has been in dispute. Phylogenetic analyses were conducted on sequences of chloroplast trnL-F sequences for species of Polygonum perfoliatum and allies. Rheum nobile was designed as outgroup. The analyses were performed using parsimony reconstrution methods. Some conclusions could be achieved as follows. （ 1 ） Polygonum perfoliatum and P. senticosum were sister group with a bootstrap value of 99%. Therefore ,Polygonum perfoliatum should be ascribed to Polygonum Sect. Echinocaulon ; it was unnecessary to accord genus rank or section rank. （ 2 ） Sect. Echinocaulon and Sect. Persicaria clustered with Sect. Cephalophilon with a bootstrap value of 100% ,indicating their close affinity.

关 键 词：杠板归 TRNL-F 刺蓼组 蓼属 

分 类 号：Q949.744[生物学—植物学]