...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Global Ecology and Conservation >Isolation by distance, local adaptation, and fortuitous coincidence of geo-political boundaries with spatial-genetic clusters in southern Bog Turtles
【24h】

Isolation by distance, local adaptation, and fortuitous coincidence of geo-political boundaries with spatial-genetic clusters in southern Bog Turtles

机译：通过距离，局部适应和地缘政治边界与博格海龟南部空间遗传集群的偶然巧合来隔离

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

p id="abspara0010"Conservation strategies are often implemented within the jurisdiction of an administrative unit, such as a state or federal agency; however, boundaries between these units may or may not reflect biologically meaningful distinctions. Population genomic data provide a useful way to objectively assess whether boundaries of administrative units coincide with natural population structure, as well as compare future management scenarios within and among said units. Here we used 2658 SNPs generated by a triple-digest reduced representation library preparation method from 171 individuals to determine if genetic population structure of Bog Turtles corresponds with political boundaries. We also estimated genetic diversity within populations pertinent to setting management priorities and tested for genetic signatures consistent with local adaptation as a preliminary step to assess translocation risk. We found that genetic differentiation among populations was strongly predicted by geographic distance. Fortuitously, the patchy distribution of remaining Bog Turtle sites results in spatial-genetic clusters that do correspond with state boundaries. We observed low genetic diversity within populations and several instances where the census size exceeded our estimates of effective population size. Lastly, we detected 20 outlier loci consistent with signatures of local adaptation, suggesting that outbreeding depression may be a risk in some translocation options. Our approach allowed us to improve population parameter estimates for the federally threatened Bog Turtle to address key recovery plan objectives, some of which had not been addressed previously.
机译：id =“ abspara0010”>保护策略通常是在行政部门（例如州或联邦机构）的管辖范围内实施的;但是，这些单元之间的界限可能反映或可能不会反映出生物学上有意义的区别。人口基因组数据提供了一种有用的方法，可以客观地评估行政单位的边界是否与自然人口结构相符，以及比较所述单位内和单位之间的未来管理方案。在这里，我们使用了由三重消化简化表示库制备方法从171个个体生成的2658个SNP，来确定沼泽海龟的遗传种群结构是否符合政治界限。我们还估计了与确定管理重点相关的种群内的遗传多样性，并测试了符合当地适应性的遗传特征，以此作为评估易位风险的初步步骤。我们发现人口之间的遗传分化是由地理距离强烈预测的。幸运的是，剩余的沼泽龟站点的斑块分布导致空间遗传簇确实与状态边界相对应。我们观察到种群内的遗传多样性较低，并且在某些情况下人口普查规模超出了我们对有效种群规模的估计。最后，我们检测到20个与局部适应特征一致的异常基因座，这表明近亲抑郁可能是某些易位选择的风险。我们的方法使我们能够改善受联邦威胁的沼泽龟的人口参数估计，以解决关键的恢复计划目标，而其中一些目标以前并未解决。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号