基于种群基因组的褐马鸡遗传多样性格局及其影响因素研究

深入研究生物的遗传多样性分布格局及其影响因素，对濒危物种的保护和管理具有重要意义。褐马鸡（Crossoptilon mantchuricum）是我国特有的一种珍稀濒危雉类，也是被IUCN列入濒危物种红皮书的全球受胁鸟类之一。在前期研究中，我们发现该物种具有极低的遗传多样性，但其野外种群数量却呈现快速增长趋势。这种现象在鸟类中极其罕见，暗示该物种可能经历了独特的选择压力并具有特殊的种群进化历史。本项目拟采用高通量测序技术，对褐马鸡各个地理种群进行系统的重测序，结合种群遗传学理论和生物信息学分析技术，利用种群基因组研究方法揭示其遗传多样性的分布格局，并探讨影响其遗传多样性的主要因素和作用机制。相关研究结果将有助于丰富保护生物学的相关理论，并为褐马鸡这一濒危物种的保护和管理提供科学依据。

Investigating the pattern and drivers of genetic diversity is of great importance to the conservation and management of endangered species. Brown eared-pheasant (Crossoptilon mantchuricum) is not only an endangered species that endemic to China, but also a vulnerable species that has been listed in the IUCN Red List of Threatened Species. In our previous studies, we have found this species has extremely low genetic diversity, but its population has increased during the last three decades, which is a rare phenomenon in endangered species and suggests Brown eared-pheasant might have experienced special selective power and demographic history. This project aims to combine high-throughput sequencing technology, population genetic theory, and bioinformatic analyses, using population genomic approaches to detect the pattern and drivers of genetic diversity of Brown eared-pheasant. The results of this project will deepen our understanding of conservation theory, and provide scientific evidence for making policy and conservation management of this endangered species.