基于COI基因序列的九种真蝽属昆虫的分子系统学研究(半翅目:蝽科)  

Molecular Phylogeny Analysis of 9 Species of Pentatoma (Hemioptera: Pentatomidae) Inferred from COI Gene Sequence

作　　者：梁秋英[1] 

机构地区：[1]陕西师范大学杂志社,陕西西安710062

出　　处：《Entomotaxonomia》2009年第2期105-114,共10页昆虫分类学报（英文）

摘　　要：通过对真蝽属Pentatoma 9种昆虫线粒体COI基因约798bp的序列进行分子进化分析,并以同蝽科宽铗同蝽Acanthosoma labiduroides为外群,采用最大简约法、最大似然法和邻接法构建了分子系统树,来探讨真蝽属的系统发育关系。研究结果支持褐真蝽群P.semiannulata-group的划分,绿角真蝽Pentatoma viridicornuta应划归到褐真蝽群P.Semiannulata-group;红足真蝽群中的角肩真蝽P.angulata与红足真蝽P.rufipes遗传距离较小,它们是否为1个物种值得关注;真蝽属各群之间的系统发育关系以及是否可分为3个属值得进一步研究。Sequences （798 bp） of the mtDNA-COI gene of 9 species from the Pentatoma were analyzed to infer the molecular evolution of COl and phylogenetic relationships of 9 species of Pentatoma （Hemiptera： Pentatomidae）, in which three methods, maximum parsimony （MP）, maximum likelihood （ML）, and neighbor-joining （NJ） were used. The results show that P. semiannulata-group are supported and P. viridicornuta apparently belong to the P. semiannulata-group. The viewpoint that P. rufipes and P. angulata are two species should be doubted. In N J, MP and ML trees, phylogenetic relationships of 4 groups can not be ascertained.

关 键 词：半翅目 蝽科 蝽亚科 真蝽属 线粒体COI基因 分子系统发育 

分 类 号：Q969[生物学—昆虫学]