Evolutionary history of the Drosophilids diversity in the Asian region : For the comprehensive understanding.

该项目旨在开展一项关于亚洲地区果蝇进化生物学的新的合作研究。在本项目期间，在中国东南部、印度尼西亚、越南和马来西亚的许多自然保护区进行了实地调查。通过对亚洲部分果蝇类群系统发育关系的研究，发现果蝇科中最大的果蝇属（Drosophila）与包括黑腹果蝇（Drosophila melanogaster）在内的果蝇亚属（Sophophora）是并系的，提示有必要对整个果蝇科的分类系统进行修正。此外，从分类学、细胞遗传学、群体遗传学和分子系统学等方面的研究，也为果蝇属几个密切相关的种群的物种形成过程提供了新的认识。

This project aims to develop a new cooperative study on the evolutionary biology of drosophilids in the Asian region. During the term of this project, field surveys at many nature reserves in southeastern China, Indonesia, Vietnam and Malaysia were performed. By studying phylogenetic relationships of some Asian drosophilid groups, it was revealed that the largest genus Drosophila in the family Drosophilidae and its subgenus Sophophora including Drosophila melanogaster are paraphyletic, suggesting the necessity of revising the classification system of the whole family. Moreover, many new knowledge for speciation process of several closely related species groups of Drosophila were obtained from taxonomic, cytogenetic, population genetic and molecular phylogenetic studies.