Antagonistic Effects of Assortative Mating on the Evolution of Phenotypic Plasticity along Environmental Gradients.

IF 2.4 2区 环境科学与生态学 Q2 ECOLOGY
American Naturalist Pub Date : 2023-07-01 Epub Date: 2023-05-25 DOI:10.1086/724579
Jean-Paul Soularue, Cyril Firmat, Thomas Caignard, Armel Thöni, Léo Arnoux, Sylvain Delzon, Ophélie Ronce, Antoine Kremer
{"title":"Antagonistic Effects of Assortative Mating on the Evolution of Phenotypic Plasticity along Environmental Gradients.","authors":"Jean-Paul Soularue, Cyril Firmat, Thomas Caignard, Armel Thöni, Léo Arnoux, Sylvain Delzon, Ophélie Ronce, Antoine Kremer","doi":"10.1086/724579","DOIUrl":null,"url":null,"abstract":"<p><p>AbstractPrevious theory has shown that assortative mating for plastic traits can maintain genetic divergence across environmental gradients despite high gene flow. Yet these models did not examine how assortative mating affects the evolution of plasticity. We here describe patterns of genetic variation across elevation for plasticity in a trait under assortative mating, using multiple-year observations of budburst date in a common garden of sessile oaks. Despite high gene flow, we found significant spatial genetic divergence for the intercept, but not for the slope, of reaction norms to temperature. We then used individual-based simulations, where both the slope and the intercept of the reaction norm evolve, to examine how assortative mating affects the evolution of plasticity, varying the intensity and distance of gene flow. Our model predicts the evolution of either suboptimal plasticity (reaction norms with a slope shallower than optimal) or hyperplasticity (slopes steeper than optimal) in the presence of assortative mating when optimal plasticity would evolve under random mating. Furthermore, a cogradient pattern of genetic divergence for the intercept of the reaction norm (where plastic and genetic effects are in the same direction) always evolves in simulations with assortative mating, consistent with our observations in the studied oak populations.</p>","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"202 1","pages":"18-39"},"PeriodicalIF":2.4000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7614710/pdf/","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Naturalist","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1086/724579","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/5/25 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 1

Abstract

AbstractPrevious theory has shown that assortative mating for plastic traits can maintain genetic divergence across environmental gradients despite high gene flow. Yet these models did not examine how assortative mating affects the evolution of plasticity. We here describe patterns of genetic variation across elevation for plasticity in a trait under assortative mating, using multiple-year observations of budburst date in a common garden of sessile oaks. Despite high gene flow, we found significant spatial genetic divergence for the intercept, but not for the slope, of reaction norms to temperature. We then used individual-based simulations, where both the slope and the intercept of the reaction norm evolve, to examine how assortative mating affects the evolution of plasticity, varying the intensity and distance of gene flow. Our model predicts the evolution of either suboptimal plasticity (reaction norms with a slope shallower than optimal) or hyperplasticity (slopes steeper than optimal) in the presence of assortative mating when optimal plasticity would evolve under random mating. Furthermore, a cogradient pattern of genetic divergence for the intercept of the reaction norm (where plastic and genetic effects are in the same direction) always evolves in simulations with assortative mating, consistent with our observations in the studied oak populations.

分类交配对表型可塑性沿环境梯度进化的拮抗作用。
摘要以往的理论表明,可塑性性状的分类交配可以在高基因流的环境梯度下保持遗传差异。然而,这些模型并没有研究选型交配如何影响可塑性的进化。我们在这里描述了遗传变异的模式,可塑性在一个共同的无梗橡树花园的品种交配下,使用多年的花蕾日期的观察。尽管基因流很高,但我们发现反应规范对温度的截距存在显著的空间遗传差异,而对斜率则没有。然后,我们使用了基于个体的模拟,其中反应规范的斜率和截距都在进化,来研究分类交配如何影响可塑性的进化,改变基因流的强度和距离。我们的模型预测了在选择性交配的情况下,当最佳可塑性在随机交配下进化时,次优可塑性(斜率比最优浅的反应规范)或超塑性(斜率比最优陡)的进化。此外,反应规范截距的遗传分化的共梯度模式(塑性和遗传效应在同一方向上)总是在模拟中进化为选择性交配,与我们在研究的橡树种群中观察到的一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
American Naturalist
American Naturalist 环境科学-进化生物学
CiteScore
5.40
自引率
3.40%
发文量
194
审稿时长
3 months
期刊介绍: Since its inception in 1867, The American Naturalist has maintained its position as one of the world''s premier peer-reviewed publications in ecology, evolution, and behavior research. Its goals are to publish articles that are of broad interest to the readership, pose new and significant problems, introduce novel subjects, develop conceptual unification, and change the way people think. AmNat emphasizes sophisticated methodologies and innovative theoretical syntheses—all in an effort to advance the knowledge of organic evolution and other broad biological principles.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信