Pleistocene glaciation events shape genetic structure across the range of the American lobster, Homarus americanus
Pleistocene glaciation events shape genetic structure across the range of the American lobster, Homarus americanus
复制标题
更新世冰川事件塑造了美洲龙虾（Homarus americanus）范围内的遗传结构
作者：
E. Kenchington;G. Harding;Mathew W. Jones;P. Prodöhl
一个北/南中断沿着北美东北海岸的遗传结构的美洲龙虾（Homarus americanus）检测使用一套13个微卫星位点的空间分析评估。种群遗传数据覆盖了现有的自然地理变化和海面温度数据，用于重建该物种的更新世分布。冰后期北方边缘殖民模型最好地解释了北方地区与以缅因州湾为中心的南部地区相比的相对遗传同质性。群体遗传分析确定了显着的结构（标准化θ 0-0.02的范围），但没有显着的证据隔离距离。空间遗传分析的海洋物种的新应用，使我们能够解释这些结果，提供了一个更深入的了解，负责塑造这个物种的遗传结构在整个自然范围的进化因素。
A north/south discontinuity along the northeastern coast of North America in the genetic structure of the American lobster (Homarus americanus) was detected using a suite of 13 microsatellite loci assessed using spatial analyses. Population genetic data laid over existing data on physiographic changes and sea‐surface temperatures were used to reconstruct the Pleistocene distribution of this species. A postglacial northern‐edge colonization model best explains the relative genetic homogeneity of the northern region compared to the southern region centred in the Gulf of Maine. Population genetic analyses identified significant structure (range of standardized theta 0–0.02) but no significant evidence for isolation by distance. The novel application of spatial genetic analyses to a marine species allowed us to interpret these results by providing a greater insight into the evolutionary factors responsible for shaping the genetic structure of this species throughout is natural range.
影响因子：
1.9
作者：
GUO, SW;THOMPSON, EA
通讯作者：
THOMPSON, EA