Evolution最新文献_第2页

Transgenerational epigenetic inheritance increases trait variation but is not adaptive. 跨代表观遗传增加了性状变异，但不具有适应性。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf050

René S Shahmohamadloo, John M Fryxell, Seth M Rudman

{"title":"Transgenerational epigenetic inheritance increases trait variation but is not adaptive.","authors":"René S Shahmohamadloo, John M Fryxell, Seth M Rudman","doi":"10.1093/evolut/qpaf050","DOIUrl":"10.1093/evolut/qpaf050","url":null,"abstract":"Understanding organismal responses to environmental change is a central goal of biology with profound implications for the conservation of biodiversity. Widespread evidence of epigenetic modifications in response to environmental stress, including those inherited across generations, has led to considerable speculation about their role in organismal responses to environmental change. Yet, the magnitude and fitness consequences of epigenetic marks carried beyond maternal inheritance are largely unknown. Here, we tested how transgenerational epigenetic inheritance (TEI) shapes the phenotypic response of Daphnia clones to the environmental stressor Microcystis. We split individuals from each of eight genotypes into exposure and control treatments (P0 generation) and tracked the fitness of their descendants to the F3 generation. We found transgenerational epigenetic exposure to Microcystis led to reduced survival and growth rates and no consistent effect on offspring production. TEI was associated with increases in trait variance, suggesting the potential for heritable bet hedging driven by TEI. Taken together, our results demonstrate that TEI causes substantial-but not adaptive-trait shifts, suggesting transgenerational adaptive plasticity may be rare.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1033-1043"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12167597/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596483","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

Fluctuating selection among years in a wild insect. 野生昆虫的年际波动选择。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf042

Rolando Rodríguez-Muñoz, Paul E Hopwood, Jon Slate, Craig A Walling, Thomas M Houslay, Tom Tregenza

{"title":"Fluctuating selection among years in a wild insect.","authors":"Rolando Rodríguez-Muñoz, Paul E Hopwood, Jon Slate, Craig A Walling, Thomas M Houslay, Tom Tregenza","doi":"10.1093/evolut/qpaf042","DOIUrl":"10.1093/evolut/qpaf042","url":null,"abstract":"Temporal or spatial variation in selection has the potential to explain long-standing evolutionary problems such as evolutionary stasis and the maintenance of genetic variation. Long-term field studies of plants and wild vertebrates have provided some insights, but multigenerational measures of selection in wild invertebrates remain scarce. Short-lived ectothermic animals are likely to experience more pronounced environmental variation across generations than longer-lived and endothermic species. As a result, variation in selection may be particularly significant in these groups. Over 10 years, we have monitored an individually tagged population of wild crickets (Gryllus campestris) using a network of up to 133 day-night video cameras. The over a million hours of video that we watched allowed us to capture detailed information about naturally and sexually selected traits and life history parameters. Over 10 discrete generations, the population size ranged from 51 to 546 adults. There were also substantial differences among years in the average values of traits including adult emergence date, body size, lifespan, and several behavioral traits. We combined measurements of these traits with individual fitness, measured as the number of adult offspring inferred from genetic-marker-based parentage assignments. This revealed substantial variation in selection gradients across years in several traits, with evidence that in one trait, adult emergence date, selection switched from positive to negative over the years. Our findings suggest that fluctuations in selection gradients are common but complete reversals in the direction of selection may not be very frequent.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"973-982"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143556391","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

Multiple metrics of trichome diversity support independent evolutionary hypotheses in blazingstars (Mentzelia: Loasaceae). 毛状体多样性的多个指标支持了blazingstars （Mentzelia: Loasaceae）的独立进化假设。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf054

Rosemary A E Glos, Marjorie G Weber

{"title":"Multiple metrics of trichome diversity support independent evolutionary hypotheses in blazingstars (Mentzelia: Loasaceae).","authors":"Rosemary A E Glos, Marjorie G Weber","doi":"10.1093/evolut/qpaf054","DOIUrl":"10.1093/evolut/qpaf054","url":null,"abstract":"Trichomes are diverse and functionally important plant structures that vary in response to selection pressures across ecological gradients and evolutionary timescales. Classic hypotheses predict higher investment in trichomes in arid environments, at lower latitudes, and in long-lived species, as well as shifts in trichome production to reduce conflict between defense traits and mutualisms. However, tests of these hypotheses often rely on aggregate trichome metrics and neglect the rich diversity of trichome phenotypes. Here, we collected data on fine-scale patterns of trichome length, density, and type in 52 species of blazingstars (Mentzelia: Loasaceae) and tested whether individual trichome traits were consistent with existing adaptive hypotheses. Contrary to longstanding hypotheses, we found that Mentzelia species tend to display greater trichome investment in less arid environments and at higher latitudes. Barbed trichomes are significantly less common on the upper surface of the leaf, possibly reducing defense-pollination conflict. Species with larger petals (a proxy for reliance on insect pollinators) also shift investment away from insect-trapping hairs on the underside of the leaf. Examining trichome types separately revealed that different morphologies show distinct responses to abiotic and biotic factors, demonstrating the need to consider multiple axes of diversity when testing adaptive hypotheses for complex traits.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1056-1072"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662926","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

Kin-discriminating partner choice promotes the evolution of helping. 亲属歧视的伴侣选择促进了帮助的进化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf032

Thomas W Scott, Geoff Wild, Andy Gardner

{"title":"Kin-discriminating partner choice promotes the evolution of helping.","authors":"Thomas W Scott, Geoff Wild, Andy Gardner","doi":"10.1093/evolut/qpaf032","DOIUrl":"10.1093/evolut/qpaf032","url":null,"abstract":"Kin selection theory predicts that individuals should evolve to help relatives, either by helping indiscriminately in a population where they do not move very far from their relatives, or by discriminating kin and conditionally helping them. It has been argued that, because kin discrimination enables individuals to reduce how helpful they are with some social partners as well increase how helpful they are with others, this could lead to an increase or a decrease in the overall level of helping. Specifically, it was argued that kin discrimination would increase the overall level of helping if the function relating the optimal level of help and genetic relatedness is convex, but kin discrimination would decrease the overall level of helping if the function relating the optimal level of help and genetic relatedness is concave. However, this prediction was based on a model in which individuals were not able to choose their social partners but only adjust how helpful they should be toward those social partners they have been allocated. Here, we perform a mathematical analysis showing that being able to choose social partners increases the overall level of helping. Consequently, if kin discriminators are allowed to choose whom they help, kin discrimination is more likely to increase the overall level of helping than previously anticipated. We obtained these results in two complementary theoretical settings: one more general, which makes few demographic assumptions, and the other more specific and concrete, which assumes a patch-structured population with complete dispersal.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"962-972"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143425290","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: Demographic changes and ancient introgression events might resolve Lewontin's Paradox in Australian geckos. 摘要：人口结构的变化和古老的遗传渗入事件可能会解决澳大利亚壁虎的列万廷悖论。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf085

Jente Ottenburghs

引用次数: 0

Different traits dominate evolution at early and late stages of adaptive radiation. 在适应辐射的早期和晚期，不同的性状主导着进化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf051

Leonel Herrera-Alsina, Špela Di Batista Borko, Ester Premate, Ole Seehausen, Florian Altermatt, Cene Fišer

{"title":"Different traits dominate evolution at early and late stages of adaptive radiation.","authors":"Leonel Herrera-Alsina, Špela Di Batista Borko, Ester Premate, Ole Seehausen, Florian Altermatt, Cene Fišer","doi":"10.1093/evolut/qpaf051","DOIUrl":"10.1093/evolut/qpaf051","url":null,"abstract":"Adaptive radiation (AR), a process of rapid speciation and ecomorphological diversification, played an important role in generating past and contemporary global biodiversity. An unsolved question is what maintains high rates of speciation during AR, a phenomenon we call the \"speciation paradox.\" One possible explanation for resolving this paradox is a sequential trait evolution, i.e., a series of ecological diversifications, which enables evolving lineages to fully and more effectively exploit the ecological space. We tested this hypothesis using the highly diverse subterranean amphipod genus Niphargus. Niphargus shows distinct signatures of adaptive radiation both at the genus level and at the level of four larger clades. Our analysis revealed the decoupled evolution of habitat-related traits and trophic-biology-related traits. Moreover, on a genus level, we found evidence that AR commences with a tight association between speciation rates and the dynamics of habitat-related traits. At a later stage, speciation dynamics become associated with the diversification of trophic-biology-related traits. This suggests that the dependence of macroevolutionary rates in this group switches among niche axes before saturation, resulting in prolonged high speciation rates during AR.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1044-1055"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143604379","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

Coevolution and the diversification of nestling ornamentation in a species-rich avian radiation. 物种丰富的鸟类群落中雏鸟纹饰的共同进化与多样性。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf052

Gabriel A Jamie, G Jelmer Huisman, Rebecca M Kilner, Michael D Sorenson, Claire N Spottiswoode

{"title":"Coevolution and the diversification of nestling ornamentation in a species-rich avian radiation.","authors":"Gabriel A Jamie, G Jelmer Huisman, Rebecca M Kilner, Michael D Sorenson, Claire N Spottiswoode","doi":"10.1093/evolut/qpaf052","DOIUrl":"10.1093/evolut/qpaf052","url":null,"abstract":"Conspicuous juvenile phenotypes are puzzling to evolutionary biologists. Why should organisms vulnerable to predation boldly broadcast their presence? We reconstructed the evolutionary history of juvenile phenotypes across the estrildid finches (family Estrildidae), a radiation exhibiting unparalleled diversity in nestling ornamentation. Many are parasitized by Vidua finches whose offspring mimic host nestling phenotypes. We examined the role of brood parasitism, predation, sibling competition, and signaling environment in the diversification of nestling ornamentation. We found that parasitized lineages exhibit elevated rates of nestling ornamentation evolution compared to unparasitized lineages. Despite this, the extent to which nestlings were ornamented did not differ between parasitized and unparasitized lineages, contrasting with systems where coevolution proceeds at the egg stage and generates increased complexity in host traits. Species occupying denser habitats had increased ornamentation, suggesting a role for light environment in the evolution of begging displays. Nestling appearance showed a strong phylogenetic signal, helping to explain why successfully colonized hosts are often closely related to ancestral ones. Neither nest height nor clutch size (proxies for predation and sibling competition) predicted nestling ornamentation levels, and parasitism did not predict estrildid finch diversification rates. Overall, our results support a model of trait diversification in which hosts lead and parasites follow in the coevolutionary arms race.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"891-904"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647809","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 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 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":"https://doi.org/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":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","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

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 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 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":"https://doi.org/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 hours of exposure (\"susceptibility\") of C. elegans to three bacterial species of varying virulence, along with a fourth strain, the OP50 strain of E. 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 S. aureus, pathogen susceptibility is clearly under purifying directional selection of magnitude roughly similar to that of competitive fitness in the MA 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":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","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":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Context- and sex-dependent links between sire sexual success and offspring pathogen resistance. 父辈交配成功和后代病原体抗性之间的联系与环境和性别相关。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-06-14 DOI: 10.1093/evolut/qpaf043

Aijuan Liao, Tadeusz J Kawecki

{"title":"Context- and sex-dependent links between sire sexual success and offspring pathogen resistance.","authors":"Aijuan Liao, Tadeusz J Kawecki","doi":"10.1093/evolut/qpaf043","DOIUrl":"10.1093/evolut/qpaf043","url":null,"abstract":"Sexual selection has been proposed to promote genetic variants that improve resistance to pathogens (a variant of the \"good genes\" hypothesis). Two key mechanisms linking sexual success and pathogen resistance have been proposed: the \"condition-dependent\" scenario, where general health improves both sexual traits and pathogen resistance, and the \"context-dependent\" scenario, where resistance to specific pathogens benefits sexual success only in certain environments. Few studies distinguish between these two mechanisms. Here, we used Drosophila melanogaster in an experiment designed to test for additive genetic relationship between males' sexual success and the resistance of its offspring to the fungal pathogen Metarhizium brunneum, and to investigate if this relationship depends on pathogen exposure during sexual selection as well as on offspring sex. In the absence of the pathogen, more sexually successful males sired less pathogen-resistant offspring, whereas no relationship was detected when sires competed for paternity after pathogen exposure. For daughters, the relationship tended to be negative irrespective of sire's pathogen exposure. Thus, while we confirmed that sexual selection may act on genes affecting resistance in a context- and sex-dependent manner, we found no circumstances under which it promoted resistance, in contradiction to the \"good genes\" hypothesis.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"983-994"},"PeriodicalIF":3.1,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143572045","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