北欧和西欧岩雷鸟（Lagopus mutus）的种群遗传结构

Population genetic structure of rock ptarmigan Lagopus mutus in Northern and Western Europe.

作者信息

Caizergues A, Bernard-Laurent A, Brenot J-F, Ellison L, Rasplus J Y

机构信息

CEFE-CNRS, Montpellier France.

出版信息

Mol Ecol. 2003 Aug;12(8):2267-74. doi: 10.1046/j.1365-294x.2003.01889.x.

DOI:10.1046/j.1365-294x.2003.01889.x

PMID:12859645

Abstract

Alpine species may be losing habitat because of global warming. Setting management priorities for such species is thus urgent and cannot be achieved without data on population structure. We studied the structure of rock ptarmigan (Lagopus mutus) populations in the Pyrenees, Alps and Norway, using six microsatellites. We found that rock ptarmigan in the Pyrenees were genetically impoverished compared with those in the Alps and Norway, and displayed a greater divergence (Pyrenees vs. Alps or Norway: theta(ST) = 0.16, Alps vs. Norway, theta(ST) = 0.04). In the Alps, despite a weak genetic differentiation between localities up to 200 km apart (theta(ST) = 0.011), a significant isolation-by-distance (IBD) effect was detected. When computed for each sex separately this IBD effect was significant for males but not for females, suggesting that males are highly philopatric.

摘要

由于全球变暖，高山物种可能正在失去栖息地。因此，为这类物种确定管理优先级迫在眉睫，而没有种群结构数据就无法实现这一点。我们使用六个微卫星研究了比利牛斯山脉、阿尔卑斯山脉和挪威的岩雷鸟（Lagopus mutus）种群结构。我们发现，与阿尔卑斯山脉和挪威的岩雷鸟相比，比利牛斯山脉的岩雷鸟遗传多样性较低，且表现出更大的分化（比利牛斯山脉与阿尔卑斯山脉或挪威相比：θ(ST)=0.16，阿尔卑斯山脉与挪威相比，θ(ST)=0.04）。在阿尔卑斯山脉，尽管相距200公里以内的不同地点之间遗传分化较弱（θ(ST)=0.011），但仍检测到显著的距离隔离（IBD）效应。当分别对每个性别进行计算时，这种IBD效应在雄性中显著，而在雌性中不显著，这表明雄性具有高度的留居性。