PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan Cedex, France.
Laboratoire d'Excellence 'CORAIL', 58 avenue Paul Alduy, F-66360, Perpignan, France.
Ecol Lett. 2020 Feb;23(2):265-273. doi: 10.1111/ele.13428. Epub 2019 Nov 26.
The relative contributions of environmental, maternal and additive genetic factors to the Lifetime reproductive success (LRS) determine whether species can adapt to rapid environmental change. Yet to date, studies quantifying LRS across multiple generations in marine species in the wild are non-existent. Here we used 10-year pedigrees resolved for a wild orange clownfish population from Kimbe Island (PNG) and a quantitative genetic linear mixed model approach to quantify the additive genetic, maternal and environmental contributions to variation in LRS for the self-recruiting portion of the population. We found that the habitat of the breeder, including the anemone species and geographic location, made the greatest contribution to LRS. There were low to negligible contributions of genetic and maternal factors equating with low heritability and evolvability. Our findings imply that our population will be susceptible to short-term, small-scale changes in habitat structure and may have limited capacity to adapt to these changes.
环境、母体和加性遗传因素对终生繁殖成功率（LRS）的相对贡献决定了物种是否能够适应快速的环境变化。然而，迄今为止，在野外的海洋物种中，还没有对跨多代 LRS 进行量化的研究。在这里，我们使用了分辨率为 10 年的金贝岛（PNG）野生橙色小丑鱼种群的系谱，并采用定量遗传线性混合模型方法，量化了自繁殖种群中 LRS 的加性遗传、母体和环境因素的贡献。我们发现，繁殖者的栖息地，包括海葵物种和地理位置，对 LRS 的贡献最大。遗传和母体因素的贡献较低，相当于低遗传力和可进化性。我们的研究结果表明，我们的种群容易受到栖息地结构的短期、小规模变化的影响，并且可能适应这些变化的能力有限。
