作为重要的经济类群和广泛的入侵类群，蚬属的分类尚未准确厘定。形态的高度可塑性和生殖特征的复杂多样性，尤其是专性雄性生殖易造成的子代细胞质与细胞核基因组错配，使得联合采用基于线粒体和细胞核基因条形码的系统分类方法被认为是厘定蚬属分类的最有效方法。中国作为原产地之一，其蚬属依据形态的分类体系仍需结合分子系统学方法进一步核实，且其蚬属的雄性生殖特征亦尚未见报道。本项目拟在联合采用基于线粒体COI与细胞核28S rDNA基因条形码对我国蚬属进行系统分类的基础上，结合形态特征确定我国蚬属的种类，并分别从性别机制、幼蚬孵育方式、精子鞭毛数量、精子倍性、精子是否减数等方面确定蚬属各种类的主要生殖特征，最终提出一套实用的鉴别方法，从而为全球蚬属分类的厘定及我国蚬的多样性评价与管理提供基础。

The taxonomy of the genus Corbicula, a commercially improtant and widespread invasive group, has not been accurately resolved. Comprehensive systematic analysis combining mitochondrial and nuclear gene markers is thought to be the most effective method to deal with this problem, due to their ploymorphic shells and divertified and peculiar reproduction characteristics of genus Corbicula, especially the hermaphroditism and androgenesis which resulting in the mismatch of mitochondrial/nuclear genome in progeny. China is one of the native areas for genus Corbicula, but the taxa status of genus Corbicula still needs to be further proved integrating the modern systematic methods, and the androgenesis reproductive mode of genus Corbicula has also not been reproted in China. In the proposed study, the taxonomy of genus Corbicula form China and their main reproductive characteristics, especially for the androgenesis reproductive mode will be studied. Firstly, the systematic relationships of genus Corbicula will be analyzide by the comprehensive systematic analysis combining the DNA barcode of mitochondrial COI gene and nuclear 28S rDNA gene. Then the taxonomy of genus Corbicula will be established based on the results of systematic analysis taken together with those deduced from morphology methods (traditional morphological parameters and geometry). Secondly, the main reproductive characteristics of Corbicula species will be evaluated through analyzing the sexual mechanisms, position of broods, flagellate number, ploids, and reduction or not of sperm. Finally, an accurate and effective identification method for genus Corbicula will be provided. The results of the proposed study will be helpful for resolving the taxonomy of genus Corbicula globally and evaluating and managing the diversity of Corbicula in China.