首页> 美国卫生研究院文献>BMC Evolutionary Biology >Post-glacial phylogeography and evolution of a wide-ranging highly-exploited keystone forest tree eastern white pine (Pinus strobus) in North America: single refugium multiple routes
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Post-glacial phylogeography and evolution of a wide-ranging highly-exploited keystone forest tree eastern white pine (Pinus strobus) in North America: single refugium multiple routes

机译:冰川后植物地理学和北美开发的一种广泛利用的梯形主要森林树东部白松(Pinus strobus)的演化:单避难所多条路线

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摘要

BackgroundKnowledge of the historical distribution and postglacial phylogeography and evolution of a species is important to better understand its current distribution and population structure and potential fate in the future, especially under climate change conditions, and conservation of its genetic resources. We have addressed this issue in a wide-ranging and heavily exploited keystone forest tree species of eastern North America, eastern white pine (Pinus strobus). We examined the range-wide population genetic structure, tested various hypothetical population history and evolutionary scenarios and inferred the location of glacial refugium and post-glacial recolonization routes. Our hypothesis was that eastern white pine survived in a single glacial refugium and expanded through multiple post-glacial recolonization routes.
机译:背景知识了解某个物种的历史分布,冰川后地理学及其演化,对于更好地了解其当前分布和种群结构以及未来的潜在命运(尤其是在气候变化条件下)以及保护其遗传资源至关重要。我们已经在北美东部,东部白松(Pinus strobus)的一种广泛采伐和大量开发的梯形森林树种中解决了这个问题。我们研究了范围广泛的种群遗传结构,测试了各种假设的种群历史和进化情况,并推断了冰川避难所和冰川后重新定殖途径的位置。我们的假设是,东部白松在单个冰川避难所中幸存下来,并通过多种冰川后再定殖途径进行扩张。

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