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首页> 外文期刊>ICES Journal of Marine Science >Temporal patterns of spatial genetic structure and effective population size in European plaice (Pleuronectes platessa) along the west coast of Scotland and in the Irish Sea
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Temporal patterns of spatial genetic structure and effective population size in European plaice (Pleuronectes platessa) along the west coast of Scotland and in the Irish Sea

机译：苏格兰西海岸和爱尔兰海中欧洲（Pleuronectes platesa）的空间遗传结构和有效种群大小的时间格局

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摘要

The European plaice (Pleuronectes platessa) is a relatively mobile flatfish species, and previous studies have reported broad-scale genetic homogeneity among samples distributed throughout much of its northern European range, with no evidence for isolation-by-distance (IBD) population structure. Using microsatellite loci, the pattern of spatial genetic structure and effective population size is characterized for >800 plaice collected from locations off the west coast of Great Britain over a 3-year period (2001-2003). The plaice populations are characterized by weak spatial genetic structure, consistent with tagging data, and relatively low effective population sizes. In contrast to previous work, a pattern of isolation by distance is present among pairs of plaice from within each sampling period. However, IBD spatial structure was not observed for comparisons of plaice from different sampling years or using the entire dataset, indicating a patchy temporal genetic structure. Therefore, pooling the data from several years can mask subtle patterns of population structure and potentially confound estimation of other important demographic parameters, such as effective population size.
机译：欧洲（Pleuronectes platesa）是一种相对活动的比目鱼物种，以前的研究已经报道了分布在其北欧大部分地区的样本之间具有广泛的遗传同质性，没有证据表明按距离隔离（IBD）种群结构。使用微卫星基因座，表征了在三年内（2001-2003年）从英国西海岸以外地点收集的800余只的空间遗传结构和有效种群数量的特征。种群的特征是空间遗传结构较弱，与标签数据一致，有效种群规模相对较低。与以前的工作相反，在每个采样周期内，成对的之间存在按距离隔离的模式。然而，没有观察到IBD空间结构用于比较来自不同采样年或使用整个数据集的，这表明时空上的遗传结构是零散的。因此，汇总几年来的数据可能会掩盖人口结构的微妙格局，并可能混淆其他重要人口统计学参数（例如有效人口规模）的估计。

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