Institut des Sciences de l'Evolution-Montpellier, Université de Montpellier, CNRS-IRD-EPHE-UM, France.
Evolution. 2018 Jun;72(6):1330-1332. doi: 10.1111/evo.13504. Epub 2018 May 26.
Complex demography and selection at linked sites can generate spurious signatures of divergent selection. Unfortunately, many attempts at demographic inference consider overly simple models and neglect the effect of selection at linked sites. In this issue, Rougemont and Bernatchez (2018) applied an approximate Bayesian computation (ABC) framework that accounts for indirect selection to reveal a complex history of secondary contacts in Atlantic salmon (Salmo salar) that might explain a high rate of latitudinal clines in this species.
复杂的人口统计学和连锁位点的选择可能会产生虚假的分歧选择信号。不幸的是，许多人口统计学推断的尝试考虑了过于简单的模型，而忽略了连锁位点选择的影响。在本期杂志中，Rougemont 和 Bernatchez（2018 年）应用了一种近似贝叶斯计算（ABC）框架，该框架考虑了间接选择，揭示了大西洋鲑（Salmo salar）中二次接触的复杂历史，这可能解释了该物种高纬度渐变的原因。
