Phylogenetic Relationships of the Pentatomomorpha (Hemiptera: Heteroptera) Inferred from Nuclear 18S rDNA Sequences  

基于18SrDNA序列的蝽次目(半翅目:异翅亚目)系统发育关系(英文)

作　　者：李红梅[1] 邓日强[2] 王珣章[2] 

机构地区：[1]仲恺农业技术学院生命科学学院,广东广州510225 [2]中山大学生命科学学院生物控制国家重点实验室,广东广州510275

出　　处：《Zoological Research》2006年第3期307-316,共10页动物学研究（英文）

基　　金：广东省自然科学基金资助项目(04009785) ;仲恺农业技术学院博士专项(G2360226)

摘　　要：Sequences from a region of the nuclear ribosomal 18S rDNA gene of approximately 1 912 base pairs （bp） were used to generate a molecular phylogeny for the Pentatomomorpha based on 53 species representing 21 putative families. Phylogenetic analyses using the most parsimony method （MP）, maximum likelihood method （ML）, and neighbor joining method （NJ） showed strong support that the Pentatomomorpha lineage is a monophyly and the superfamily Aradoidea is a sister group to the remainder of the Pentatomomorpha （Trichophora）. The Trichophora could be divided into two clades ： one clade consisted of the monophyletic superfamilies Pentatomoidea and Pyrrhocoroidea; the other was mainly the polyphyletic superfamilies Lygaeoidea, Coreoidea and Idiostoloidea. The superfamilies Lygaeoidea and Coreoidea were both polyphyletic. Within Lygaeoidea, Piesmatidae was sister to Berytidae. They formed a clade locating at the basal of the Trichophora and distantly related to the other two families Lygaeidae and Rhyparochromidae. This research suggested that 18S rDNA was a proper marker to reconstruct the phylogeny of Pentatomomorpha that was accordant to morphological studies and the research of Li et al （2005）. The Pyrrhocoroidea was further divided from the Coreoidea （s./at ）. It was suggested that the Piesmatidae might be assigned as a superfamily of Pentatomomorpha rather than a family in Lygaeoidea.利用18SrDNA分子约1 912 bp的序列对蝽次目21个科53个种进行系统发育分析。运用MP法、ML法和NJ法分析后的结果表明:蝽次目的单系性得到很高的支持;扁蝽总科成为毛点类的姐妹群;毛点类基本确定为两大分支:一支包含蝽总科和红蝽总科;另一支主要由长蝽总科、缘蝽总科和南蝽总科组成;长蝽总科和缘蝽总科都是多系;长蝽总科中,跷蝽科和皮蝽科的关系最近,构成姐妹群,位于整个毛点类的基部;与长蝽总科中另外两个科长蝽科和地长蝽科的关系很远。说明利用18SrDNA分子对研究蝽次目的系统发育关系是适合的,能够重建蝽次目;扁蝽总科和蝽总科单系性的结果与形态学的研究以及Li et al (2005)的研究一致;但较Li et al(2005)的研究更进一步把红蝽总科从广义的缘蝽总科中分出来;并建议皮蝽科作为一个独立的总科更合适。

关 键 词：Molecular phylogeny Pentatomomorpha 18 S rDNA Trichophora 

分 类 号：Q969.35[生物学—昆虫学] Q75