【摘要】 两栖动物是调查野生动物群体很好的模型,因为(1)在许多生态系统中分布广泛;(2)在繁殖群体中取样方便;(3)繁殖地点比较固定因而群体遗传结构水平较高;(4)在实验室杂交容易控制;(5)有重要的保护意义。中性遗传标记,主要是微卫星,已经成功用于研究两栖动物有效群体数量和结构以及评定杂交效果。亲缘地理学为群体史和引种命运提供了重要解释。数量遗传学方法已经证明加性效应在生命史的适应性和发育能力这些重要性状有重要作用。更多还原

【Abstract】 Amphibians are good models for investigating the genetics of wild animal populations because they are: (1) widely distributed in most ecosystems; (2) easy to sample in breeding assemblages; (3) often philopatric to breeding sites, generating high levels of population genetic structure; (4) amenable to controlled crossings in the laboratory; and (5) of major conservation concern. Neutral genetic markers, mostly microsatellites, have been used successfully in studies of amphibian effective population sizes and structures and in assessing the consequences of hybridisation. Phylogeography has provided important insights into population histories and the fates of introductions. Quantitative genetic methods have demonstrated adaptive variation in life history traits of importance to fitness and therefore to population viability.更多还原