基于18S基因序列的姬小蜂分子系统发育

本文基于18S rDNA部分序列,用MP和Baysian方法研究了姬小蜂科的系统发育,对姬小蜂科的单系性及其与其它小蜂科间的关系进行了讨论。姬小蜂亚科、灿姬小蜂亚科和啮姬小蜂亚科形成三个独立的支系,研究结果支持它们各自的单系性,但本结果没有明确姬小蜂科的单系性。研究结果同时还支持瑟姬小蜂族、扁股姬小蜂族和狭面姬小蜂族三个族的地位,但不支持姬小蜂族的地位。姬小蜂科的单系性及其与其它小蜂间的关系还需更多的形态学数据和更多的基因序列来进一步研究动物学报52 (2) : 288 -301 , 2006]。

A molecular phylogeny of eulophid wasps inferred from partial 18S gene sequences

We investigated the phylogeny of the parasitoid wasp family Eulophidae(Hymenoptera)using nuclear 18S rDNA partial sequences with maximum parsimony and Bayesian inference methods of sequence analysis.The status of the Eulophidae and its component subfamilies in relation to other taxa in the superfamily Chalcidoidea were examined.The analyses confirmed the monophyly of some subfamilies in Eulophidae,including the current Entedoninae,Eulophinae and Tetrastichinae.All three subfamilies formed independent branches and the phylogeny did not confidently resolve the monophyly of the Eulophidae.The tribes Cirrospilini,Elasmini and Elachertini were well defined.However,the status of the tribe Eulophini was problematic.Further extensive morphological studies and more gene sequences will be required before the wider relationships of some groups of eulophids within Chalcidoidea can be determined.