Evolution最新文献_第3页

Digest: Sex-specific benefits of mitochondrial introgression. 文摘：线粒体渗入的性别特异性益处。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf152

Stefano Bettinazzi

引用次数: 0

How does robustness affect evolvability? 鲁棒性如何影响可进化性？

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf116

Nate B Hardy

{"title":"How does robustness affect evolvability?","authors":"Nate B Hardy","doi":"10.1093/evolut/qpaf116","DOIUrl":"10.1093/evolut/qpaf116","url":null,"abstract":"Here, by consolidating and extending simple models of how genetic robustness affects the evolvability of phenotypes with discrete states, I uncover three new insights. (i) Environmental robustness can boost evolvability by allowing populations to spread across a migrationally neutral network of demes, thereby increasing the diversity of plastic phenotypes that can be accessed by migration. (ii) Counter-intuitively, when adaptive landscapes are complex, an increase in environmental stability can increase the frequency of environmentally robust but mutationally sensitive genotypes. This appears to be due to relaxed selection for mutational robustness in generalists. (iii) Evolvability can be affected by changes in mutational sensitivity, or by changes in the neighborhood of phenotypes accessible by non-neutral mutations. Because it allows for the evolution of increased evolvability without a concomitant increase in genetic load, selection should favor changes in the phenotypic neighborhood over changes in mutational sensitivity. Moreover, with fluctuating selection, the potential gains in evolvability conferred by increased mutational sensitivity can be diminished by selective sweeps on the phenotypic neighborhood.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1996-2006"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157459","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 endocranial anatomy of protocetids and its implications for early whale evolution. 原幼鲸的颅内解剖及其对早期鲸类进化的启示。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf109

Elena Berger, Eli Amson, Emanuele Peri, Abdullah S Gohar, Hesham M Sallam, Gabriel S Ferreira, Ranasish Roy Chowdhury, Quentin Martinez

{"title":"The endocranial anatomy of protocetids and its implications for early whale evolution.","authors":"Elena Berger, Eli Amson, Emanuele Peri, Abdullah S Gohar, Hesham M Sallam, Gabriel S Ferreira, Ranasish Roy Chowdhury, Quentin Martinez","doi":"10.1093/evolut/qpaf109","DOIUrl":"10.1093/evolut/qpaf109","url":null,"abstract":"Extant whales, dolphins, and porpoises result from a major macroevolutionary lifestyle transition that transformed land-dwelling cetaceans into fully aquatic species. This involved significant changes in sensory systems. The increase in brain size relative to body size (encephalization quotient) is an outstanding feature of modern cetaceans, especially toothed whales. Conversely, olfactory capabilities are assumed to have diminished along this transition, with airborne olfaction becoming less relevant. The extent and timing of olfactory reduction remain obscure due to challenges in accessing well-preserved fossil endocranial anatomy. This study shows that early cetaceans had already evolved an increased encephalization quotient, and that their olfactory apparatus was likely not yet under selective pressure leading to its reduction. We demonstrate this through an analysis of the extinct whale, Protocetus atavus, a member of the middle Eocene semiaquatic cetacean group Protocetidae. We provide the first documentation of its endocranial anatomy using high-resolution computed tomography and compare it to other early cetaceans as well as extant mammals. We conclude that cetaceans increased their brain size earlier than previously thought, while relying on a well-developed olfactory system at a time when they were still partly terrestrial.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2306-2314"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144076896","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

Microgeographic diversity does not drive macroevolutionary divergence in bite force of the Ibiza wall lizard, Podarcis pityusensis. 微地理多样性不驱动伊比沙壁虎咬合力的宏观进化差异。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf140

Stephanie Charlotte Woodgate, Ana Pérez-Cembranos, Valentín Pérez-Mellado, Johannes Müller

{"title":"Microgeographic diversity does not drive macroevolutionary divergence in bite force of the Ibiza wall lizard, Podarcis pityusensis.","authors":"Stephanie Charlotte Woodgate, Ana Pérez-Cembranos, Valentín Pérez-Mellado, Johannes Müller","doi":"10.1093/evolut/qpaf140","DOIUrl":"10.1093/evolut/qpaf140","url":null,"abstract":"Despite extensive research, it is still poorly understood how microgeographic phenotypic variation translates to the macroevolutionary level. Here, we use the Ibiza wall lizard, Podarcis pityusensis, an endemic species of the Balearic Islands, to study microgeographic variation across different scales of evolutionary isolation. We quantify bite force and morphology alongside biotic and abiotic environment in 11 populations, which have been variably isolated from one another over the Quaternary period. While we generally find increasing divergence in form and function as populations become more isolated from each other, this is not true when isolation is the highest; phenotypic differences between the 2 major clades of P. pityusensis are negligible, despite populations being isolated for over 100,000 years. Our results show that how environmental selective pressures drive form-function evolution differ by sex. Natural selection appears the most important driver of female evolution, while male phenotypes are apparently driven by both natural and sexual selection, but precise drivers of form-function evolution vary according to the scale of isolation investigated. Our study demonstrates incongruence in form-function-environment relationships within a constrained geographical area, highlighting how convergence at greater evolutionary scales can obscure microevolutionary diversity.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2144-2155"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144741676","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

Drift and dispersal hinder the evolution of facultative asexual reproduction. 漂移和扩散阻碍了兼性无性生殖的进化。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf155

Mark M Tanaka, Russell Bonduriansky

{"title":"Drift and dispersal hinder the evolution of facultative asexual reproduction.","authors":"Mark M Tanaka, Russell Bonduriansky","doi":"10.1093/evolut/qpaf155","DOIUrl":"10.1093/evolut/qpaf155","url":null,"abstract":"Facultative parthenogenesis is a flexible reproductive strategy in which females can reproduce asexually if males are unavailable. When males are present, females can incorporate potentially beneficial genes from males into their offspring genomes; when males are absent, females can still produce offspring and benefit from the twofold advantage of parthenogenesis. Given these advantages, it is puzzling that this reproductive strategy is not more widespread. While a number of selection-based explanations have been proposed, fundamental questions remain about the role of population ecology in the evolution of facultative parthenogenesis. Here, we consider the roles of dispersal and genetic drift in the evolution of facultative parthenogenesis within a sexually reproducing species. We develop and analyze a simple mathematical model with two parameters: the dispersal intensity and the population size. We find that a combination of drift and dispersal forms a barrier to the invasion of obligately sexual populations by facultatively parthenogenetic mutants. Although these factors are unlikely to be the only forces that limit facultative parthenogenesis, they represent a parsimonious null model for the observed relative rarity of this reproductive strategy in some taxonomic groups.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2250-2258"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144759484","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

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 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 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":"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":"2007-2022"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","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

Context-dependent body size evolution in lacertid lizards: differential role of structural habitat and climate across radiations. 环境依赖的蜥蜴体型进化：结构栖息地和气候在辐射中的差异作用。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf130

Pablo Vicent-Castelló, Urtzi Enriquez-Urzelai, Fernando Martínez-Freíria, Joan Garcia-Porta, Antigoni Kaliontzopoulou

{"title":"Context-dependent body size evolution in lacertid lizards: differential role of structural habitat and climate across radiations.","authors":"Pablo Vicent-Castelló, Urtzi Enriquez-Urzelai, Fernando Martínez-Freíria, Joan Garcia-Porta, Antigoni Kaliontzopoulou","doi":"10.1093/evolut/qpaf130","DOIUrl":"10.1093/evolut/qpaf130","url":null,"abstract":"Body size plays a pivotal role in organismal performance, physiology, and ecology, making its evolution a key focus in biology. This study investigates the effects of structural habitat use (climbing vs. ground-dwelling) and climatic variables on body size evolution within the diverse Lacertidae lizard family and across phylogenetic scales. Our results reveal how structural habitat drives diversification rather than convergence toward specific morphological optima, with evolutionary rates varying substantially among phylogenetic groups. Gallotinae exhibits the highest evolutionary rates, likely due to island-driven dynamics, while Eremiadini and Lacertini display contrasting patterns linked to habitat use and evolutionary history. Similarly, climatic variables also influence body size variation by group. In Eremiadini, significant associations with temperature align with the heat conservation hypothesis. Lacertini body size negatively correlates with precipitation seasonality, supporting the seasonality hypothesis, while Gallotinae remains unaffected by climate, reflecting the unique pressures of insular evolution. This study highlights the importance of phylogenetic scale in understanding macroevolutionary patterns, revealing how broad-scale analyses may obscure context-specific eco-evolutionary dynamics. By focusing on coherent taxonomic groups, this research provides critical insights into how structural and climatic factors shape morphological diversity within Lacertidae.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2023-2034"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293590","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

Genetic consequences of gene surfing and their relationship to fitness. 基因冲浪的遗传后果及其与适应性的关系。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf148

Spencer Holtz, Asher Hudson, Silas Tittes, Christopher Weiss-Lehman

{"title":"Genetic consequences of gene surfing and their relationship to fitness.","authors":"Spencer Holtz, Asher Hudson, Silas Tittes, Christopher Weiss-Lehman","doi":"10.1093/evolut/qpaf148","DOIUrl":"10.1093/evolut/qpaf148","url":null,"abstract":"Populations expanding their ranges experience unique evolutionary dynamics, with perhaps the most ubiquitous being an increased role for genetic drift. The increase in genetic drift during range expansion is predicted to increase the frequency of deleterious alleles along the expansion edge, termed expansion load, and therefore reduce fitness at the edge of expansions. While theoretical predictions of expansion load are well established, direct links between whole-genome estimates of load and decreases in an expanding population's fitness remain scarce. We quantified expansion load during experimental range expansions of the red flour beetle (Tribolium castaneum) and then regressed observed population growth rates against estimated genetic loads to characterize if and how much expansion load decreased fitness at expansion edges. As predicted by theory, gene surfing resulted in the fixation of an increased number of putatively deleterious alleles. However, metrics of whole-genome load displayed relatively weak relationships with fitness. We suggest this discrepancy may partly be due to the recessive nature of some deleterious variation, which our data were not able to robustly assess. Genetic diversity, in contrast, was strongly associated with fitness and may provide a robust, easy-to-assess metric for expanding populations.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2208-2218"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144658802","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

Cumulative effects of mutation and selection on susceptibility to bacterial pathogens in Caenorhabditis elegans. 秀丽隐杆线虫对病原菌敏感性的突变和选择累积效应。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf132

Sayran Saber, Lindsay M Johnson, Md Monjurul Islam Rifat, Sidney Rouse, Charles F Baer

{"title":"Cumulative effects of mutation and selection on susceptibility to bacterial pathogens in Caenorhabditis elegans.","authors":"Sayran Saber, Lindsay M Johnson, Md Monjurul Islam Rifat, Sidney Rouse, Charles F Baer","doi":"10.1093/evolut/qpaf132","DOIUrl":"10.1093/evolut/qpaf132","url":null,"abstract":"Understanding the evolutionary and genetic underpinnings of susceptibility to pathogens is of fundamental importance across a wide swathe of biology. Much theoretical and empirical effort has focused on genetic variants of large effect, but pathogen susceptibility often appears to be a polygenic complex trait. Here, we investigate the quantitative genetics of survival over 120 h of exposure (\"susceptibility\") of Caenorhabditis elegans to three bacterial species of varying virulence, along with a fourth strain, the OP50 strain of Escherichia coli, the standard laboratory food for C. elegans. We compare the genetic (co)variance input by spontaneous mutations accumulated under minimal selection to the standing genetic (co)variance in a set of 47 wild isolates. Three conclusions emerge. First, mutations increase susceptibility to pathogens. Second, susceptibility to pathogens is uncorrelated with fitness in the absence of pathogens. Third, with the possible exception of Staphylococcus aureus, pathogen susceptibility is clearly under purifying directional selection of magnitude roughly similar to that of competitive fitness in the mutation accumulation conditions. The results provide no evidence for fitness tradeoffs between pathogen susceptibility and fitness in the absence of pathogens.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2047-2056"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12533481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293591","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

Adaptive introgression of putative carotenoid pigment genes explains geographic variation in a sexually-selected plumage trait. 假定的类胡萝卜素色素基因的适应性渗入解释了性别选择羽毛性状的地理变异。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-10-17 DOI: 10.1093/evolut/qpaf135

Sarah Khalil, Jennifer Walsh, Erik D Enbody, Daniel T Baldassarre, Michael S Webster, Jordan Karubian

{"title":"Adaptive introgression of putative carotenoid pigment genes explains geographic variation in a sexually-selected plumage trait.","authors":"Sarah Khalil, Jennifer Walsh, Erik D Enbody, Daniel T Baldassarre, Michael S Webster, Jordan Karubian","doi":"10.1093/evolut/qpaf135","DOIUrl":"10.1093/evolut/qpaf135","url":null,"abstract":"Understanding the genetic architecture of sexually-selected traits is a fundamental goal in evolutionary biology because it can explain the constraints and processes that shape the production of these traits and emergent evolutionary processes, such as introgression. To address these topics, we leverage populations of hybridizing red-backed fairywrens (Malurus melanocephalus) that differ by plumage color (orange vs. red) across a well-classified hybrid zone with a priori evidence of strong female preference for males with redder plumage. We sequenced whole genomes of 36 individuals that vary in plumage hue and found that divergence between even the most phenotypically different individuals was very low, yet we identified several regions with high FST estimates relative to the background divergence. To determine whether loci in these elevated regions were linked to plumage variation across the species range, we sequenced top candidate genetic variants for color differentiation in 285 individuals from 16 populations and traced their frequencies across the range of the species. We found that 15% of these variants were concordant with the plumage cline, with some linked to putative carotenoid processing genes and exhibiting evidence of selection. Considered together, these findings suggest that geographic variation in the sexually-selected plumage color of male red-backed fairywrens is in part explained by adaptive introgression of genes involved in carotenoid coloration. This study highlights how genetic mechanisms underlying color variation can shape patterns of adaptive introgression via sexual selection and phenotypic differentiation in hybridizing taxa.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2072-2085"},"PeriodicalIF":2.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144527064","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