Evolutonary and phylogenetic study on the Drosophila virilis section (Diptera : Drosophilidae)

果蝇 virilis 部分的进化和系统发育研究（双翅目：果蝇科）

• 批准号: 07640920
• 负责人: WATABE Hideaki
• 金额: $ 1.54万
• 依托单位: Hokkaido University of Education, Faculty of Education, Sapporo Campus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07640920/
• 关键词: Drosophilidae; virilis-repleta radiation; virilis section; Biogeography; ecology; karyotype; evolution; molecular phylogeny; ショウジョウバエ; クロショウジョウバエ; 系統進化; 染色体; 分子系統樹; クロショウジョウバエ区; 進化遺伝; 系統関係

Faunal surveys of the Drosophila virilis section were made in the Japan Islands covering subtropical regions to cool temperate regions, together with ecological surveys on breeding substrates, microhabitats and seasonal fluctuations. Two new species, 3 newly recorded species and several insular subspecies were added to the Japanese fauna of drosophilidsKaryotype analyzes, reproductive isolation studies, analyzes of Adh genes and mtDNA were carried out by using Japanese members of the virilis section and their related foreign species. The molecular phylogenetic tree demonstrated that the robusta species-group was polyphyletic, comprising the okadai subgroup, the lacertosa subgroup and the robusta subgroup. This was supported by the karyotype observation. The okadai subgroup and the quadrisetata group built the same cluster, whereas the robusta subgroup and the melanica group did another cluster. The evolutionary process of the virilis section was discussed based on the results obtained.

在日本群岛进行了果蝇病毒区的动物调查，涵盖了凉爽温带地区的亚热带区域，以及对育种基质，微生境和季节性波动的生态调查。将两个新物种，3种新记录的物种和几个岛亚种添加到日本果蝇型型分析的动物群中，生殖隔离研究，对ADH基因和mtDNA的分析，使用日本的病毒段及其相关物种进行。分子系统发育树表明，鲁布斯塔种群是多形的，包括Okadai亚组，Lacertosa亚组和Robusta亚组。这得到了核型观察的支持。 Okadai子组和Quadrisetata组建立了相同的集群，而Robusta子组和Melanica组则做了另一个集群。根据获得的结果讨论了病毒片部分的进化过程。