中国鼩鼱属（劳亚食虫目：鼩鼱科）的分类和系统发育研究

鼩鼱属（Sorex）是劳亚食虫目鼩鼱科中典型的属，也是鼩鼱族（Soricini）中唯一的属。该属的分类一直是非飞行小型哺乳动物中较难的一个类群。我国该属物种丰富，但因该属动物体型极小，标本获取困难，馆藏资源少，又存在复合种、隐存种、同名、异名等现象，当前在亚属和种级阶元上分类和系统发育关系都存有较大争议。本项目将适度扩大野外采集、辅以查阅国内外馆藏标本和科研合作交流等方式获取足够标本，拟以头骨及外形特征为基础，辅以核型分析，并结合分子系统学等方法重新构建该属物种的系统发育关系，发现潜在新物种，厘定该属动物的分类。该项目将为进一步深入研究该类群的起源、演化和物种形成机制打下坚实基础。

Sorex genus is a typical genus of the family Soricidae (Eulipotyphla), and is the unique genus of the tribe Soricini. The taxonomy of this genus is more difficult than other genera in non-volant small mammals group. Although this genus is very rich in species diversity in China, the taxonomic status and phylogenetic relationships of Sorex at subgenus and the species level have been debated due to its very small size, difficult sampling, and limited collection resources in some museums. Different species complex, cryptic species, synonym and homonym etc. were suggested through previous some researchers. Therefore, more field investigations and related studies on this unique group have to be conducted. In this project, through these ways involving expanding and strengthening field survey, checking on collected specimens in some museums and scientific research cooperation etc., we will obtain enough samples to study the species diversity and taxonomy of this Sorex in China. On the basis of the skull characteristics, karyotype analysis, and combined with molecular systematics methods, we will reconstruct the phylogenetic relationship of Sorex species, reveal the potential new species, establish the taxonomy of the genus. Through these efforts, we aim to further study their origin, evolution and speciation mechanisms of the group in the world.