Evolution最新文献_第4页

Scaling the fitness effects of mutations with respect to differentially adapted Arabidopsis thaliana accessions under natural conditions. 自然条件下拟南芥不同适应植株突变的适应度效应。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf029

Frank W Stearns, Juannan Zhou, Charles B Fenster

{"title":"Scaling the fitness effects of mutations with respect to differentially adapted Arabidopsis thaliana accessions under natural conditions.","authors":"Frank W Stearns, Juannan Zhou, Charles B Fenster","doi":"10.1093/evolut/qpaf029","DOIUrl":"10.1093/evolut/qpaf029","url":null,"abstract":"Mutations are the ultimate source of genetic variation for natural selection to act upon. A major question in evolutionary biology is the extent to which new mutations can generate genetic variation under natural conditions to permit adaptive evolution over ecological time scales. Here, we collected fitness data for chemically induced (ethylmethane sulfonate, EMS) mutant lines descended from two Arabidopsis thaliana ecotypes that show differential adaptation to the local environment of our common garden plot. Using a novel nonparametric Bayesian statistical approach, we found that both ecotypes accumulated substantial proportions of beneficial mutations. The poorly adapted ecotype exhibited higher mean mutational effects and higher variance in the fitness effects of mutations compared to the well-adapted ecotype. Furthermore, we predict that it takes less than 4,000 generations for the fitness space of the two ecotypes to overlap through mutation accumulation, and that a single founder, through mutation accumulation, is able to achieve the species-wide genetic variation in less than 10,000 generations. Our results provide evidence for relatively rapid local adaptation of Arabidopsis thaliana in natural conditions through new mutations, as well as the utility of a nonparametric Bayesian method for modeling the distribution of fitness effects for field-collected data.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"951-961"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12167596/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143425299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Last Glacial Maximum diversification implicated by continent-wide population structure in an avian top predator, the great horned owl (Bubo virginianus). 末次冰期鸟类顶级掠食者大角鸮（Bubo virginianus）在全大陆范围内的种群结构所涉及的最大多样化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-13 DOI: 10.1093/evolut/qpaf129

Emily N Ostrow, Lukas J Musher, Kevin Winker, Peter M Mattison, Christopher C Witt, Robert G Moyle

{"title":"Last Glacial Maximum diversification implicated by continent-wide population structure in an avian top predator, the great horned owl (Bubo virginianus).","authors":"Emily N Ostrow, Lukas J Musher, Kevin Winker, Peter M Mattison, Christopher C Witt, Robert G Moyle","doi":"10.1093/evolut/qpaf129","DOIUrl":"https://doi.org/10.1093/evolut/qpaf129","url":null,"abstract":"Many North American species have diversified in response to past climate change, but the specific impacts of late Pleistocene glaciations on diversification and population structure in widespread North American species are uncertain. We tested drivers of continent-wide population genomic structure in North American great horned owls (Bubo virginianus). Using species distribution modeling and reduced representation genomic sequencing on 114 specimen-vouchered samples, we quantified genetic diversity, gene flow, and population divergence times to test the drivers of population structure. Specifically, we examined how contemporary and historical processes shaped this species' spatial patterns of genetic structure. We identified three populations corresponding to eastern, northwestern, and southwestern North America. Areas of relatively high effective genetic diversity corresponded to regions of high habitat suitability during the Last Glacial Maximum (LGM) and gene flow was low among recently diverged populations. Landscape genomic models accounting for least-cost path dispersal distances during the LGM and current landscape found support for both contemporary and historical geographic features driving genomic differentiation. Our results revealed how habitat fragmentation associated with historical and contemporary landscapes drove population structuring. Late Pleistocene glaciations, as recently as the LGM, seem to have driven population structure of this geographically widespread, charismatic, and large-bodied avian species.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144283047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Local Adaptation of Male Sexual Fitness in Drosophila melanogaster. 黑腹果蝇雄性性适合度的局部适应。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-10 DOI: 10.1093/evolut/qpaf125

Cameron Kendrick, Aneil F Agrawal, Howard D Rundle

{"title":"Local Adaptation of Male Sexual Fitness in Drosophila melanogaster.","authors":"Cameron Kendrick, Aneil F Agrawal, Howard D Rundle","doi":"10.1093/evolut/qpaf125","DOIUrl":"https://doi.org/10.1093/evolut/qpaf125","url":null,"abstract":"Mate competition gives rise to sexual selection, and healthier, more vigorous males are likely to be superior competitors. Because most genes are likely to impact an individual's vigor, sexual selection should act across much of the genome to favor the same alleles as natural selection, thereby promoting adaptation. On the other side of the coin, adaptation to an environment should enhance male sexual fitness in that environment because it is likely to increase the overall vigor of individuals within a population. Surprisingly, there are few tests of this latter prediction and results are mixed. Taking advantage of a long-term evolution experiment involving replicate populations of Drosophila melanogaster, we performed a reciprocal transplant in which the sexual fitness of males was compared when raised in an environment to which they were well adapted and in one to which they were not. Male sexual fitness was a comprehensive measure that included pre- and post-copulatory reproductive success in a competitive assay performed under conditions that closely mirrored those to which the populations had been evolving. The results add support to the idea that local adaptation to the abiotic environment enhances male sexual fitness.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diagnosing confounded Bateman gradients. 诊断混淆了贝特曼梯度。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-09 DOI: 10.1093/evolut/qpaf127

Krish Sanghvi, Jonathan M Henshaw, Alex Kacelnik, Tim Janicke, Irem Sepil

{"title":"Diagnosing confounded Bateman gradients.","authors":"Krish Sanghvi, Jonathan M Henshaw, Alex Kacelnik, Tim Janicke, Irem Sepil","doi":"10.1093/evolut/qpaf127","DOIUrl":"https://doi.org/10.1093/evolut/qpaf127","url":null,"abstract":"The Bateman gradient is a fundamental metric of sexual selection, often interpreted as the fitness advantage individuals gain by increasing their number of mates. However, it is widely recognized that any traits influencing both mating success and reproductive success can confound the Bateman gradient, misrepresenting the strength of pre-copulatory sexual selection. Yet, the magnitude of this misrepresentation across different biological systems (e.g., differing in anisogamy or the strength of sperm competition), which co-variates are most problematic, or how confounded relationships can be diagnosed to better interpret the Bateman gradient, remains largely unexplored. To address these gaps, we simulate nine plausible biological scenarios where the effect of male mating success on reproductive success is confounded. We find that co-variances between male mating success and female fecundity or egg allocation confound the male Bateman gradient more strongly than co-variances between male mating success and ejaculate traits. These differences in the impact of male-female versus male-male co-variances are especially pronounced in systems with high levels of anisogamy and no sperm competition. We provide guidelines for empiricists to visually identify such co-variances by recording mating order, and suggest that researchers explicitly state causal assumptions when interpreting Bateman gradients. Additionally, when the co-variate is a confounder, not a mediator, we demonstrate that partial Bateman gradients allow better interpretation of the strength of pre-copulatory sexual selection. These insights into the mechanisms driving variation in the Bateman gradient allow us to clarify its meaning, identify scenarios where its interpretation might be problematic, and offer practical solutions to address this.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144257661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The tortoise and the air: Climate shapes sex-ratio reaction norm variation in turtles. 龟与空气：气候影响龟的性别比反应规范变化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-09 DOI: 10.1093/evolut/qpaf126

Caleb J Krueger, Marc Girondot, Fredric J Janzen

{"title":"The tortoise and the air: Climate shapes sex-ratio reaction norm variation in turtles.","authors":"Caleb J Krueger, Marc Girondot, Fredric J Janzen","doi":"10.1093/evolut/qpaf126","DOIUrl":"https://doi.org/10.1093/evolut/qpaf126","url":null,"abstract":"For some species, gonadal sex determination relies on environmental cues and thus ought to match local conditions, which can be accomplished through changes in maternal behavior and/or the sex-ratio reaction norm. Here, we investigate the evolution of the latter at broad spatial and phylogenetic scales for turtle species with temperature-dependent sex determination (TSD). We find evidence that pivotal temperatures (Tpiv, where a 1:1 offspring sex ratio is produced) and average temperatures during incubation increase together across the phylogeny, while on contemporary timescales, Tpiv increases with incubation temperature variability. Limited evidence also indicates that the breadth of the logistic-shaped reaction norm decreases with temperature variability, contradicting expectations and suggesting this reaction norm feature may relate to intrinsic biological factors rather than to environmental conditions alone. In sum, these findings indicate that adaptive sex-ratio reaction norm variation within turtle species with TSD is driven by climate variability, while adjustments to the maternal behavior of nest site choice may primarily compensate for differences in climate averages.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144257662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sexual selection and pseudogenization in primate fertilization. 灵长类动物受精中的性选择和假胚化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-05 DOI: 10.1093/evolut/qpaf072

Jolie A Carlisle, Andrew L Bickell, Michael W Hart

{"title":"Sexual selection and pseudogenization in primate fertilization.","authors":"Jolie A Carlisle, Andrew L Bickell, Michael W Hart","doi":"10.1093/evolut/qpaf072","DOIUrl":"https://doi.org/10.1093/evolut/qpaf072","url":null,"abstract":"The mouse sperm protein ZP3R interacts with proteins in the egg coat and mediates sperm-egg adhesion in a species-specific manner. Understanding the function and evolution of such genes has important implications for studies of speciation, reproductive success, and infertility. A recent analysis showed that (1) the human pseudogene C4BPAP1 is the ortholog of Zp3r, (2) ZP3R pseudogenization evolved independently in parallel among several primate lineages, and (3) functional ZP3R genes evolve under positive selection among other primate species. The causes of this pseudogenization of ZP3R are unknown. To explore one plausible cause (changes in sexual selection on males), we searched for ZP3R pseudogenes in recently published genomes, then compared sexually selected male traits among lineages with and without a functional ZP3R. We found that traits associated with more intense sexual selection on males (larger male body size, larger male canines, larger testes) were associated with functional ZP3R expression, and suggest that a relaxation of sexual selection may be associated with ZP3R pseudogenization. We propose the causal relationship implies an evolutionary cost to maintaining redundancy in the suite of primate fertilization genes.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144233640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative analyses of stochastic influences on the response to phenotypic selection in a small passerine, the collared flycatcher. 一种小型雀形目，领蝇对表型选择反应的随机影响的定量分析。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-04 DOI: 10.1093/evolut/qpaf108

Stefan J G Vriend, Steinar Engen, Lars Gustafsson, Bernt-Erik Sæther, Vidar Grøtan

{"title":"Quantitative analyses of stochastic influences on the response to phenotypic selection in a small passerine, the collared flycatcher.","authors":"Stefan J G Vriend, Steinar Engen, Lars Gustafsson, Bernt-Erik Sæther, Vidar Grøtan","doi":"10.1093/evolut/qpaf108","DOIUrl":"https://doi.org/10.1093/evolut/qpaf108","url":null,"abstract":"Stochastic influences arising from demographic and environmental stochasticity strongly affect eco-evolutionary dynamics. Demographic stochasticity causes reduction in the long-run population growth rates at small population sizes and generates genetic drift. The effects of stochastic environmental fluctuations on fitness are more difficult to assess because it may introduce stochasticity in the selection processes. Here, we examined stochastic variation in the response to selection on three breeding parameters in a collared flycatcher (Ficedula albicollis) population using density-dependent and frequency-dependent environmental covariances among individuals with different phenotypes. Environmental fluctuations induced considerable variation among individual fitness dependent on their phenotype and population size. These stochastic effects on fitness were strongest for individuals with large clutches or few fledglings, and in years with few conspecifics. Contrastingly, we found no evidence that the stochastic environmental effects on individual fitness varied with laying date. Furthermore, we found that phenotype-specific effects of environmental fluctuations were less correlated for fledgling number than for laying date and clutch size, resulting in less correlation in fitness between pairs with similar fledgling numbers. Our analyses showed that the stochastic component in the response to selection on clutch size and laying date caused by environmental stochasticity at the carrying capacity was of the same order as the component due to genetic drift. This means that stochasticity can affect phenotypic evolution even in large populations via stochastic selection generated by environmental fluctuations.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144224852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The genomic basis of plumage polymorphism in the Eastern Screech-Owl (Megascops asio). 东部尖嘴猫头鹰（Megascops asio）羽毛多态性的基因组基础。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-02 DOI: 10.1093/evolut/qpaf120

Bryce W Robinson, Sarah Kurtis, Bronwyn G Butcher, Scott V Edwards, Irby J Lovette, Jennifer Walsh

{"title":"The genomic basis of plumage polymorphism in the Eastern Screech-Owl (Megascops asio).","authors":"Bryce W Robinson, Sarah Kurtis, Bronwyn G Butcher, Scott V Edwards, Irby J Lovette, Jennifer Walsh","doi":"10.1093/evolut/qpaf120","DOIUrl":"https://doi.org/10.1093/evolut/qpaf120","url":null,"abstract":"Understanding the genetic basis of polymorphic traits is useful for exploring the origin and maintenance of variable phenotypes. Previous work on color polymorphism in birds has evolved from targeting candidate genes to whole genome scans, consequently revealing the often-complex genomic architecture underlying polymorphic coloration. The Eastern Screech-Owl (Megascops asio) is a small North American polymorphic forest owl in which both gray and rufous plumage morphs are common across much of its range. We used whole genome resequencing to investigate the genomic basis of this polymorphic trait at a population level, revealing additive and epistatic sources of this color and pattern variation. Using three approaches, comparisons identified a genome-wide suite of loci known to be associated with coloration, several loci associated with non-coloration physiological pathways, and using a regression model-based approach identified substantial epistatic interactions between loci underlying variation in screech-owl coloration. In addition, we uncovered evidence of balancing selection at morph associated loci, suggesting that differential selection on morph types maintains their relative frequency in this species. Many owls show similar patterns of color polymorphism, which is likely mediated through parallel and equally complex genomic architecture under similar selective pressures that may partly explain how this trait has been maintained over evolutionary time as this group radiated.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144208106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Digest: Sexual dimorphism and signs of selection in the dewlaps of female Anolis lizards. 摘要：雌蜥腋窝的两性二态性和选择迹象。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-02 DOI: 10.1093/evolut/qpaf122

Madelynn M Sinclair

引用次数: 0

Optimal antimicrobial dosing combinations when drug-resistance mutation rates differ. 当耐药突变率不同时，最佳抗菌药物剂量组合。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-02 DOI: 10.1093/evolut/qpaf123

Oscar Delaney, Andrew D Letten, Jan Engelstädter

引用次数: 0