五节根蚜亚科(半翅目:蚜总科:瘿绵蚜科)基于线粒体基因COⅡ的分子系统学研究  

Molecular Phylogeny of Fordinae(Hemiptera:Aphidoidea:Pemphiginae) Inferred from Mitochondrial Gene COⅡ

作　　者：张合彩[1] 乔格侠[2] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007 [2]中国科学院动物研究所

出　　处：《四川动物》2008年第5期754-757,共4页Sichuan Journal of Zoology

基　　金：国家自然科学基金项目(编号:30570214;30670240);河南省动物学省级重点学科建设项目(编号:豫教材[2001]160);河南师范大学新引进博士科研启动经费项目(编号:0713)

摘　　要：五节根蚜亚科蚜虫大多营异寄主全周期生活,具有明显的原生寄主专一性,且能在原生寄主上形成形态各异的虫瘿,因此成为一个倍受关注的类群。但是亚科内族的划分问题却一直存在争议。基于线粒体基因COⅡ部分序列,用PAUP*4.0、MrBayes3.0等软件分别构建了该亚科的MP树、ML树和贝叶斯树,研究了五节根蚜亚科的系统发育关系。结果显示3种算法所构建的系统树都强烈支持五节根蚜亚科是一个单系;系统树明显分为两大分支,提示该亚科下分两个族。将蚜虫主要形态特征及其原生寄主植物信息对应到系统树上,经分析认为这两大分支分别对应倍蚜族和五节根蚜族。依据DNA分类理论,基于系统树的拓扑结构及序列间遗传距离,初步推测未知种No.16961是肚倍蚜Kaburagia rhusicola,但究竟是哪一个亚种尚不确定。The subfamily Fordinae is a fascinating group because of its complicated life history, primary host specificity and gall-forming characteristic. The COⅡ-based phylogenetic trees with three algorithms MP, ML anti Bayesian all strongly suggest that Fordinae is a monophyletic group with two clades corresponding to its two tribes. Some morphological characters and primary host plants of aphids were mapped onto the phylogenetic tree to analyze the division of tribes in it. Results suggest that the viewpoint that Fordinae divided into tribes Melaphidini and Fordini is more appropriate. Based on DNA taxono- my, according to the clustering results of the phylogenetic trees and the genetic distance analysis, the unknown sample of No. 16961 is probably Kaburagia rhusicola, but belonging to which subspecies still needs further study.

关 键 词：五节根蚜亚科 CO Ⅱ 五节根蚜族 倍蚜族 分子系统学 

分 类 号：Q96[生物学—昆虫学]