红松(Pinus koraiensis)遗传多样性的空间格局研究

生物多样性的起源和维持机制已经成为生态学的核心问题。红松（Pinus koraiensis）作为第三纪孑遗种具有明确的空间分布格局，其所在的东北温带针阔混交林群落具有独特的进化与演变历史，对气候变化敏感，因此红松及其所在群落是研究种群遗传格局的理想实验地。本项目以红松种群为研究对象，通过谱系地理学等分子手段整合野外生态调查、生态位模型分析等多种实验方法，较全面地揭示各种历史因素和现时因素在红松空间遗传格局形成中的作用，验证红松边缘分布区种群是否具有特殊的遗传多样性，预测未来气候变化对红松种群的影响，深入阐释生物多样性分布格局与维持机制。

The origin and maintaining mechanism of biodiversity is a major scientific question in ecology. Pinus koraiensis is a tertiary relict species. Its spatial distribution pattern is specific. It only distributes in northeast temperate mixedforest area, this area has special evolutionary history, very sensitive to climate change. Therefore, Pinus koraiensis community is an ideal system to study population genetic pattern. This proposal is to reveal the effect of historical and present climate change on Pinus koraiensis's spatial genetic pattern using molecular phylogeography, ecological investigation and ecological modeling analysis. Test the hypothesis that there is special genetic diversity at the edge of Pinus koraiensis population. Predict the effect of future climate change on Pinus koraiensis population. We expect to deeply explain the pattern and maintaining mechanism of biodiversity through these studies.