Genetic structure of rhinoceros auklets, Cerorhinca monocerata, breeding in British Columbia, Alaska, and Japan
Genetic structure of rhinoceros auklets, Cerorhinca monocerata, breeding in British Columbia, Alaska, and Japan
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DOI：
10.1007/s00227-013-2333-2
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发表时间：
2014-02-01
期刊：
影响因子：
2.4
通讯作者：
Burg, Theresa M.
中科院分区：
文献类型：
--
作者：
Abbott, Cathryn L.;Millikin, Rhonda L.;Burg, Theresa M.
来自北太平洋的246只犀牛海雀（Cerorhinca monocerata）中筛选的8个微卫星标记的数据显示了多个遗传群体。在所有分析中，东（北美）到西（日本）的分裂都很明显。在东太平洋，至少存在三个遗传群体。令人惊讶的是，来自不列颠哥伦比亚省三角岛的犀牛小海雀在基因上与附近的其他种群隔离，包括松岛上的繁殖群（类似于以东100公里）。第四个遗传簇（Chowiet是）检测使用主坐标的分析，但是，样本量有限。分化模式对应于非繁殖分布与东太平洋和西太平洋的鸟类花费时间离开西海岸的北美和日本，分别，并可能代表历史隔离在不同的避难所在更新世冰期。遗传结构的模式的结果从历史和当代因素的结合影响犀牛海雀的扩散。
Data from eight microsatellite markers screened in 246 rhinoceros auklets (Cerorhinca monocerata) from across the North Pacific revealed multiple genetic groups. The east (North America) to west (Japan) split was clearly evident in all analyses. Within the eastern Pacific, a minimum of three genetic groups are present. Surprisingly, rhinoceros auklets from Triangle Island, British Columbia, were genetically isolated from other nearby populations, including the breeding colony on Pine Island (similar to 100 km to the east). A fourth genetic cluster (Chowiet Is) was detected using principal coordinate's analysis; however, sample sizes were limited. Patterns of differentiation correspond to nonbreeding distributions with the eastern and western Pacific birds spending time off the west coast of North America and Japan, respectively, and may represent historical isolation in separate refugia during the Pleistocene glaciations. The patterns of genetic structure result from a combination of historical and contemporary factors influencing dispersal of rhinoceros auklets.