The danger within: the role of genetic, behavioural and ecological factors in population persistence of colour polymorphic species
The danger within: the role of genetic, behavioural and ecological factors in population persistence of colour polymorphic species
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DOI：
10.1111/mec.13201
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发表时间：
2015-06-01
影响因子：
4.9
通讯作者：
Griffith, Simon C.
中科院分区：
文献类型：
--
作者：
Bolton, Peri E.;Rollins, Lee A.;Griffith, Simon C.
多态性物种一直是进化生物学重要工作的焦点。有人建议，颜色多态性物种有特定的进化和种群动态，使他们能够通过环境变化更好地坚持比少变量的物种。我们认为，最近的经验和理论工作表明，多态物种可能比以前认为的更容易灭绝。之所以出现这种脆弱性，是因为这些物种往往具有一些相关的性、行为、生活史和生态特征，这些特征可能有一个简单的遗传基础。当环境变化加剧时，这些替代策略可能导致基因组和种群水平上的变体之间的冲突，这可能直接或间接地影响种群和进化动态。从这个角度来看，我们确定了一些方法，其中相关性状的性质，其基础遗传结构，以及颜色变体之间不可避免的相互作用，可以导致减少人口健身。这里说明的原则适用于所有类型的离散多态性（例如行为综合征），但我们主要集中在颜色多态性，因为它们是很好的研究。我们敦促进一步的经验调查多态物种的遗传结构和相互作用，以阐明对人口健身的影响。
Polymorphic species have been the focus of important work in evolutionary biology. It has been suggested that colour polymorphic species have specific evolutionary and population dynamics that enable them to persist through environmental changes better than less variable species. We suggest that recent empirical and theoretical work indicates that polymorphic species may be more vulnerable to extinction than previously thought. This vulnerability arises because these species often have a number of correlated sexual, behavioural, life history and ecological traits, which can have a simple genetic underpinning. When exacerbated by environmental change, these alternate strategies can lead to conflict between morphs at the genomic and population levels, which can directly or indirectly affect population and evolutionary dynamics. In this perspective, we identify a number of ways in which the nature of the correlated traits, their underpinning genetic architecture, and the inevitable interactions between colour morphs can result in a reduction in population fitness. The principles illustrated here apply to all kinds of discrete polymorphism (e.g. behavioural syndromes), but we focus primarily on colour polymorphism because they are well studied. We urge further empirical investigation of the genetic architecture and interactions in polymorphic species to elucidate the impact on population fitness.