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The Heritability of Behavior: A Meta-analysis
Journal of Heredity ( IF 3.1 ) Pub Date : 2019-05-22 , DOI: 10.1093/jhered/esz023 Ned A Dochtermann 1 , Tori Schwab 1 , Monica Anderson Berdal 1 , Jeremy Dalos 1 , Raphaël Royauté 1
Journal of Heredity ( IF 3.1 ) Pub Date : 2019-05-22 , DOI: 10.1093/jhered/esz023 Ned A Dochtermann 1 , Tori Schwab 1 , Monica Anderson Berdal 1 , Jeremy Dalos 1 , Raphaël Royauté 1
Affiliation
The contribution of genetic variation to phenotypes is a central factor in whether and how populations respond to selection. The most common approach to estimating these influences is via the calculation of heritabilities, which summarize the contribution of genetic variation to phenotypic variation. Heritabilities also indicate the relative effect of genetic variation on phenotypes versus that of environmental sources of variation. For labile traits like behavioral responses, life history traits, and physiological responses, estimation of heritabilities is important as these traits are strongly influenced by the environment. Thus, knowing whether or not genetic variation is present within populations is necessary to understand whether or not these populations can evolve in response to selection. Here we report the results of a meta-analysis summarizing what we currently know about the heritability of behavior. Using phylogenetically controlled methods we assessed the average heritability of behavior (0.235)-which is similar to that reported in previous analyses of physiological and life history traits-and examined differences among taxa, behavioral classifications, and other biologically relevant factors. We found that there was considerable variation among behaviors as to how heritable they were, with migratory behaviors being the most heritable. Interestingly, we found no effect of phylogeny on estimates of heritability. These results suggest, first, that behavior may not be particularly unique in the degree to which it is influenced by factors other than genetics and, second, that those factors influencing whether a behavioral trait will have low or high heritability require further consideration.
中文翻译:
行为的遗传性:荟萃分析
遗传变异对表型的贡献是种群是否以及如何响应选择的核心因素。估计这些影响的最常见方法是通过计算遗传力,它总结了遗传变异对表型变异的贡献。遗传力还表明遗传变异对表型与环境变异源的相对影响。对于行为反应、生活史特征和生理反应等不稳定特征,遗传力的估计很重要,因为这些特征受环境的影响很大。因此,了解种群中是否存在遗传变异对于了解这些种群是否可以响应选择而进化是必要的。在这里,我们报告了一项荟萃分析的结果,总结了我们目前对行为遗传性的了解。使用系统发育控制的方法,我们评估了行为的平均遗传力 (0.235) - 这与之前的生理和生活史特征分析中报告的相似 - 并检查了分类群、行为分类和其他生物学相关因素之间的差异。我们发现,行为之间的遗传性差异很大,迁徙行为的遗传性最强。有趣的是,我们发现系统发育对遗传力的估计没有影响。这些结果表明,首先,行为在受遗传以外因素影响的程度上可能并不是特别独特,其次,
更新日期:2019-05-22
中文翻译:
行为的遗传性:荟萃分析
遗传变异对表型的贡献是种群是否以及如何响应选择的核心因素。估计这些影响的最常见方法是通过计算遗传力,它总结了遗传变异对表型变异的贡献。遗传力还表明遗传变异对表型与环境变异源的相对影响。对于行为反应、生活史特征和生理反应等不稳定特征,遗传力的估计很重要,因为这些特征受环境的影响很大。因此,了解种群中是否存在遗传变异对于了解这些种群是否可以响应选择而进化是必要的。在这里,我们报告了一项荟萃分析的结果,总结了我们目前对行为遗传性的了解。使用系统发育控制的方法,我们评估了行为的平均遗传力 (0.235) - 这与之前的生理和生活史特征分析中报告的相似 - 并检查了分类群、行为分类和其他生物学相关因素之间的差异。我们发现,行为之间的遗传性差异很大,迁徙行为的遗传性最强。有趣的是,我们发现系统发育对遗传力的估计没有影响。这些结果表明,首先,行为在受遗传以外因素影响的程度上可能并不是特别独特,其次,