干旱区生态环境知识资源中心(Arid): Additive genetic variance for traits least related to fitness increases with environmental stress in the desert locust, Schistocerca gregaria

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DOI	10.1002/ece3.8099
	Additive genetic variance for traits least related to fitness increases with environmental stress in the desert locust, Schistocerca gregaria
	Chapuis, Marie-Pierre; Pelissie, Benjamin; Piou, Cyril; Chardonnet, Floriane; Pages, Christine; Foucart, Antoine; Chapuis, Elodie; Jourdan-Pineau, Helene
通讯作者	Chapuis, MP (corresponding author), CIRAD, CBGP, Montpellier, France.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2021
英文摘要	Under environmental stress, previously hidden additive genetic variation can be unmasked and exposed to selection. The amount of hidden variation is expected to be higher for life history traits, which strongly correlate to individual fitness, than for morphological traits, in which fitness effects are more ambiguous. However, no consensual pattern has been recovered yet, and this idea is still debated in the literature. Here, we hypothesize that the classical categorization of traits (i.e., life history and morphology) may fail to capture their proximity to fitness. In the desert locust, Schistocerca gregaria, a model organism for the study of insect polyphenism, we quantified changes in additive genetic variation elicited by lifetime thermal stress for ten traits, in which evolutionary significance is known. Irrespective of their category, traits under strong stabilizing selection showed genetic invariance with environmental stress, while traits more loosely associated with fitness showed a marked increase in additive genetic variation in the stressful environment. Furthermore, traits involved in adaptive phenotypic plasticity (growth compensation) showed either no change in additive genetic variance or a change of moderate magnitude across thermal environments. We interpret this mitigated response of plastic traits in the context of integrated evolution to adjust the entire phenotype in heterogeneous environments (i.e., adaptiveness of initial plasticity, compromise of phenotypic compensation with stress, and shared developmental pathway). Altogether, our results indicate, in agreement with theoretical expectations, that environmental stress can increase available additive genetic variance in some desert locust traits, but those closely linked to fitness are largely unaffected. Our study also highlights the importance of assessing the proximity to fitness of a trait on a case-by-case basis and in an ecologically relevant context, as well as considering the processes of canalization and plasticity, involved in the control of phenotypic variation.
英文关键词	climate change growth life history evolution morphology pest insects pigmentation stress temperature viability
类型	Article ; Early Access
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000697715200001
WOS关键词	LIFE-HISTORY TRAITS ; BODY-SIZE ; PHENOTYPIC PLASTICITY ; DISEASE RESISTANCE ; EVOLUTION ; PHASE ; MELANISM ; HERITABILITY ; TEMPERATURES ; POLYPHENISM
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363033
作者单位	[Chapuis, Marie-Pierre; Pelissie, Benjamin; Piou, Cyril; Chardonnet, Floriane; Foucart, Antoine; Jourdan-Pineau, Helene] CIRAD, CBGP, Montpellier, France; [Chapuis, Marie-Pierre; Pelissie, Benjamin; Piou, Cyril; Chardonnet, Floriane; Foucart, Antoine; Jourdan-Pineau, Helene] Univ Montpellier, INRA, Montpellier SupAgro, CIRAD,IRD, Montpellier, France; [Pelissie, Benjamin] Univ Nebraska Kearney, Dept Biol, Kearney, NE USA; [Pages, Christine] CIRAD, UPR B AMR, Montpellier, France; [Chapuis, Elodie] Univ Montpellier, CNRS, MIVEGEC, IRD, Montpellier, France; [Chapuis, Elodie; Jourdan-Pineau, Helene] CIRAD, UMR PVBMT, St Pierre, France; [Jourdan-Pineau, Helene] CIRAD, UMR ASTRE, Montpellier, France; [Jourdan-Pineau, Helene] Univ Montpellier, INRA, CIRAD, ASTRE, Montpellier, France
推荐引用方式 GB/T 7714	Chapuis, Marie-Pierre,Pelissie, Benjamin,Piou, Cyril,et al. Additive genetic variance for traits least related to fitness increases with environmental stress in the desert locust, Schistocerca gregaria[J]. French National Research Institute for Sustainable Development,2021.
APA	Chapuis, Marie-Pierre.,Pelissie, Benjamin.,Piou, Cyril.,Chardonnet, Floriane.,Pages, Christine.,...&Jourdan-Pineau, Helene.(2021).Additive genetic variance for traits least related to fitness increases with environmental stress in the desert locust, Schistocerca gregaria.ECOLOGY AND EVOLUTION.
MLA	Chapuis, Marie-Pierre,et al."Additive genetic variance for traits least related to fitness increases with environmental stress in the desert locust, Schistocerca gregaria".ECOLOGY AND EVOLUTION (2021).