节肢动物高级阶元的系统发生是国际动物学界的一个研究热点。"泛甲壳动物"是近年来主要基于分子生物学的方法研究而提出的概念，并被极大多数学者所接受。但由于所研究的基因或取材的不同也可能使所得的某些结果有所差异。我们对六足动物的分类地位和系统发生，以及节肢动物中六足动物和其他三大类群关系的亲缘关系已有初步的研究。本项目拟在此基础上，对泛甲壳动物中甲壳动物和六足动物的亲缘关系作进一步的研究。研究内容集中在

Based on the integrated data from the morphology, mtDNA, rDNA and Hox genes, we obtained some new evidences to reveal the relationships between crustacean and hexapodad, also their own taxa: (1) The phylogeny of Decapods was supported. (2) The monophyly of Poduromorpha and Symphypleona and the independence of Neelidae were supported, but the monophyly of Entomobryomorpha was denied. The present classification of Prorura and Diplura was supported, and the latter was showed to be more related to Insecta. The relationships among the three orders of Pterygota were supported as follows, Ephemeroptera + (Odonata + Neoptera). Coleoptera was showed to be more related to Neuropterida, and Diptera was considered to be the sister group of Strepsiptera. The evolutionary relationships among the twelve orders of Pterygota deduced by different evidences were supported as follows, ( Diptera + Strepsiptera) , Coleoptera + ( Megaloptera+ ( Raphidioptera + Neuroptera ) ) + Hymenoptera + ( Siphonaptera + Mecoptera ) + ( Lepidoptera + Trichoptera ), but the monophyly of Mecopterida was denied. Based on the study of wing venation and folding patterns of 74 families of Coleoptera, the relationships among the four suborders was supported as follows, Archostemata + [ Adephaga + ( Myxophaga + Polyphaga ) ]. (3) Above all, both the monoph

基于形态、线粒体、核糖体基因组及Hox基因等研究数据，获得了揭示甲壳动物和六足动物相互关系和内在关系的新证据：（1）稳定现有十足类甲壳动物内部的系统发生关系；（2）支持原跳型和愈腹亚目的单系性、短角跳科的独立性，但不支持长角跳型的单系性；支持现有原尾纲、双尾纲的分类体系，证实后者与昆虫纲的关系相近；支持具翅类昆虫基部3个目间的关系为：Ephemeroptera + (Odonata + Neoptera)；支持鞘翅目与脉翅群的关系更近，双翅目和捻翅目是姐妹群；联合证据支持具翅昆虫12目之间的进化关系是：（双翅目+捻翅目）、鞘翅目+(广翅目+(蛇蛉目+脉翅目))+膜翅目+(蚤目+长翅目)+(鳞翅目+毛翅目)，不支持长翅类的单系性；基于鞘翅目74科的翅脉演化和折叠规律研究支持原鞘亚目+[（肉食亚目）+（菌食亚目+多食亚目）]的推测；（3）综合研究结果支持多足动物的单系性，支持泛甲壳动物假说；（4）发现了昆虫4新属1新亚属、2新组合种、47 新种、中国新纪录2属（2种），修订1同物异名。