研究揭示平衡选择维系气候“预适应”储备机制
Chinese Academy of Science,
人类活动导致的物种引入事件日益频繁。经典理论认为，源于少数个体的引入种群会遭遇奠基者效应，使遗传多样性锐减、近交衰退加剧，从而阻碍其适应新环境。然而，许多物种能够突破这一遗传瓶颈，并在新环境定殖并建群。目前，学界对其适应性遗传变异保存机制尚不明晰。19世纪…
Balancing selection of climate adaptive loci underlies the success of introduction of Eurasian Tree Sparrows
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