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生物通
16 天
意大利半岛云杉 (Picea abies)边缘种群的古植物学与遗传学分析揭示其 ...
本研究通过整合古植物学证据与微卫星标记 (SSR)技术,揭示了意大利半岛挪威云杉 (Picea abies)边缘种群的长期收缩模式。研究发现西南阿尔卑斯山和西北亚平宁山脉的残余种群具有独特遗传特征,等位基因丰富度 (Ar)降低约20%,有效种群大小 (Ne)低于安全阈值,为气候变化背景下森林遗传资源保护提供 ...
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