Evolution最新文献_第10页

Caenorhabditis diversity on Pohnpei, Micronesia, provides evidence that the Elegans Supergroup has its roots in the Americas and diversified in the Pacific en route to Asia. 密克罗尼西亚波纳佩的隐杆线虫多样性提供了证据，证明秀丽隐杆线虫超级类群起源于美洲，并在前往亚洲的途中在太平洋多样化。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-27 DOI: 10.1093/evolut/qpag031

Matthew V Rockman, Sophia C Tintori, Tuc H M Nguyen, V M Harmony Yomai

{"title":"Caenorhabditis diversity on Pohnpei, Micronesia, provides evidence that the Elegans Supergroup has its roots in the Americas and diversified in the Pacific en route to Asia.","authors":"Matthew V Rockman, Sophia C Tintori, Tuc H M Nguyen, V M Harmony Yomai","doi":"10.1093/evolut/qpag031","DOIUrl":"10.1093/evolut/qpag031","url":null,"abstract":"Model organisms are powerful tools for discovery in cell and molecular biology, and studies of their natural history have the potential to provide bridges between these fields and ecology and evolutionary biology. The nematode Caenorhabditis elegans is a preeminent model, and recent findings place its center of diversity in the cool, high-elevation forests of Hawaii. To test models of biogeography and species coexistence, we investigated Caenorhabditis on Pohnpei, an island in Micronesia, home to the largest patch of high-elevation forest between Hawaii and Asia. We found nine species of Caenorhabditis, five of them new. Using the distribution of nematodes among habitat patches, we parameterized models of Caenorhabditis population biology that help explain species coexistence patterns. We inferred a phylogeny for 70 species of Caenorhabditis and performed the first quantitative biogeographic analysis for the group. Our analysis suggests that the deep ancestors of the Elegans Supergroup of species lived in the Americas. The Supergroup's subsequent diversification occurred in Oceania, giving rise to a diverse Oceanian fauna and ultimately to multiple lineages that moved into Asia, Africa, Australasia, and back into the Americas. We infer a slow trans-Pacific migration, with the islands of Oceania serving as sources rather than sinks for biodiversity.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147303620","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

Experimental evolution in communities: beyond pairwise interactions. 社区的实验进化：超越两两互动。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-26 DOI: 10.1093/evolut/qpag029

Vincent Montbel, Jan Hrcek

{"title":"Experimental evolution in communities: beyond pairwise interactions.","authors":"Vincent Montbel, Jan Hrcek","doi":"10.1093/evolut/qpag029","DOIUrl":"https://doi.org/10.1093/evolut/qpag029","url":null,"abstract":"Experimental evolution is a powerful method that has been instrumental for revealing core mechanisms of adaptation and coevolution. It has mostly been used in very simple settings of one or two species. Yet, it is now increasingly being employed in more complex community settings that include indirect effects, higher-order interactions, and multidimensional selection typical of natural communities. Here we synthesize the emerging field of experimental evolution in communities and show how community context reshapes selection and evolutionary trajectories, beyond what single-species or pairwise designs predict. We conducted a systematic literature survey targeting multi-species, multi-generation evolution, identifying 100 such studies with the number increasing recently. Despite this progress, most experiments are biased toward microbial systems and competitive interactions, leaving major gaps for predicting evolution in realistic communities. We discuss community ecology concepts in the light of experimental evolution, together with designs that address these concepts. We emphasize three main research areas: indirect and higher-order interactions that make selection multidimensional, eco-evolutionary feedbacks linking trait change to community dynamics, and genetic constraints that shape responses across interaction networks. We then discuss routes to increase ecological realism with field experiments and conclude by outlining key research fronts for experimental evolution in communities.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147289611","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: Population-level processes that facilitate divergence differ between Andean and Amazonian birds. 摘要：促进安第斯和亚马逊鸟类分化的种群水平过程不同。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-25 DOI: 10.1093/evolut/qpag028

Pranav Gokhale

引用次数: 0

Addressing multi-generational non-genetic responses in experimental studies of evolution. 在进化实验研究中处理多代非遗传反应。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-23 DOI: 10.1093/evolut/qpag027

Giacomo Zilio, Stéphanie Bedhomme, Emanuel A Fronhofer, Staffan Jacob, Delphine Legrand, Hervé Philippe, Luis-Miguel Chevin

{"title":"Addressing multi-generational non-genetic responses in experimental studies of evolution.","authors":"Giacomo Zilio, Stéphanie Bedhomme, Emanuel A Fronhofer, Staffan Jacob, Delphine Legrand, Hervé Philippe, Luis-Miguel Chevin","doi":"10.1093/evolut/qpag027","DOIUrl":"https://doi.org/10.1093/evolut/qpag027","url":null,"abstract":"Populations that face environmental change reducing their mean fitness can recover by adaptive genetic evolution over multiple generations, but their immediate responses may also involve non-genetic mechanisms, though the latter can be difficult to demonstrate. When the dynamics of such non-genetic changes in mean phenotype and fitness span multiple generations, their effects at the population level can be difficult to distinguish from those of natural selection on genetic variants. While the existence of non-genetic inheritance is no longer controversial, we argue that its potential contribution to observed patterns in evolutionary studies remains overlooked, especially for processes leading to phenotypic change that unfolds over multiple generations, which we call multigenerational non-genetic responses (MUNGER). We highlight three major forms of MUNGER that, if not properly accounted for, could confound inference about genetic changes: delayed impact of stress, transgenerational plasticity, and priming. We summarize how each may impact the dynamics of phenotypic change across generations in concrete experimental contexts (e.g., experimental evolution, common gardens, ecotoxicological experiments). We propose that analysing the dynamic properties of MUNGER, their relative contributions to overall phenotypic responses, and how they interact with genetic changes, should help build a more comprehensive understanding of evolutionary responses to changing environments.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147270232","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: The marsupial pouch as a key evolutionary innovation. 《文摘》：有袋动物的育儿袋是一个关键的进化创新。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-18 DOI: 10.1093/evolut/qpaf257

Jamile Bubadué

引用次数: 0

Co-evolution of host dispersal and parasite virulence in complex landscapes. 复杂景观中宿主传播与寄生虫毒力的共同进化。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-18 DOI: 10.1093/evolut/qpaf241

Jhelam N Deshpande, Ruthvik S Pallagatti, Vasilis Dakos, Oliver Kaltz, Emanuel A Fronhofer

{"title":"Co-evolution of host dispersal and parasite virulence in complex landscapes.","authors":"Jhelam N Deshpande, Ruthvik S Pallagatti, Vasilis Dakos, Oliver Kaltz, Emanuel A Fronhofer","doi":"10.1093/evolut/qpaf241","DOIUrl":"10.1093/evolut/qpaf241","url":null,"abstract":"Spatial network structure impacts the ecological and evolutionary dynamics of species interactions. Previous work on host-parasite systems has shown that parasite virulence is driven by dispersal rates and spatial structure, assuming that dispersal is an ecologically fixed parameter. However, dispersal is also a trait under selection and can evolve. In this context, we develop an individual-based eco-evolutionary model, in which both parasite virulence and host dispersal can evolve in representative terrestrial (random-geometric graphs; RGGs) and riverine aquatic (optimal channel networks; OCNs) landscapes. We find that in riverine aquatic landscapes, evolutionarily stable (ES) dispersal rates are lower and ES virulence is greater relative to terrestrial landscapes when dispersal mortality is low. When dispersal mortality is high, both dispersal and virulence evolve to lower values in both landscape types. Diverging co-evolutionary patterns between landscapes are explained by differences in network topology. Specifically, the highly heterogeneous degree distribution in riverine aquatic landscapes (1) leads to low parasite relatedness allowing for the evolution of greater virulence and (2) leads to spatial heterogeneity in host densities that constrains the evolution of dispersal to lower values. Our work highlights the importance of considering the concurrent and co-evolution of dispersal when studying trait evolution in complex landscapes.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"487-495"},"PeriodicalIF":2.6,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145603262","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

Cracking open the blackbox of genotype-phenotype map: crossing the explanatory gap between micro- and macroevolution. 打开基因型-表型图谱的黑箱：跨越微观进化与宏观进化的解释鸿沟。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-18 DOI: 10.1093/evolut/qpaf236

Mihaela Pavlicev

{"title":"Cracking open the blackbox of genotype-phenotype map: crossing the explanatory gap between micro- and macroevolution.","authors":"Mihaela Pavlicev","doi":"10.1093/evolut/qpaf236","DOIUrl":"10.1093/evolut/qpaf236","url":null,"abstract":"A key insight of evolutionary genetics is that the evolvability of a population depends crucially on the amount and distribution of heritable phenotypic variation across traits. Because this insight focuses on segregating variation, the traits that do not vary among individuals but differ among higher taxa are ignored. Slowly evolving traits, like body plan organization and homologs, are nevertheless essential because they set the phenotypic boundary conditions within which variation segregates. Therefore, understanding long-term evolutionary change requires understanding the principles that control variation in varying AND conserved traits, in addition to understanding how drift and selection influence segregating population variation. In this perspective, I propose that this understanding is attainable if we acknowledge that different processes, which map sequence variation to phenotypic variation, have different capacities to produce variation and evolve. I suggest decomposing the GP map according to types of processes with different variational properties. For vertebrates, these are morphogenesis, growth, and maintenance. This perspective allows us to focus on how these processes interact under the influence of natural selection and delineate the conditions leading to different patterns of evolutionary change.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"301-311"},"PeriodicalIF":2.6,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145582108","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: Direct benefits as a mechanism promoting the evolution of female ornamentation. 摘要：直接利益是促进雌性纹饰进化的机制。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-18 DOI: 10.1093/evolut/qpaf251

David López-Idiáquez

引用次数: 0

Loss of pair formation predates the evolution of male-less society in termites. 在白蚁中，配偶形成的丧失早于雄性减少社会的进化。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-18 DOI: 10.1093/evolut/qpaf248

Nobuaki Mizumoto, Toshihisa Yashiro, Simon Hellemans

{"title":"Loss of pair formation predates the evolution of male-less society in termites.","authors":"Nobuaki Mizumoto, Toshihisa Yashiro, Simon Hellemans","doi":"10.1093/evolut/qpaf248","DOIUrl":"10.1093/evolut/qpaf248","url":null,"abstract":"Asexual lineages are rare in social animals with biparental care, where successful reproduction typically requires coordinated behavior between two individuals of opposite sex. Male-less lineages of the termite Glyptotermes nakajimai provide a unique opportunity to unravel how sexual reproduction can be lost in such animals. Here, we show that modification of the mate-pairing process predated the evolution of asexual populations. Termite colonies are typically initiated by a mating pair that searches for a nest site through a tandem courtship behavior. Our comparative analysis of tandem running in Glyptotermes termites revealed that two related species, G. fuscus and G. satsumensis, exhibit both female-leader and male-leader tandem runs. However, tandem running was rare and ephemeral in both sexual and asexual lineages of G. nakajimai. Furthermore, our comparative studies indicated typical monogamous pairing was uniquely lost in G. nakajimai, while pairs initiate nests in G. fuscus and G. satsumensis. Our study evidenced that a clear disruption of termites' classic reproductive behavioral sequence, coupled with an alternative mode of colony foundation, was likely a precondition for the evolution of asexuality in species with biparental care.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"460-471"},"PeriodicalIF":2.6,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145631508","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

Distinct intraspecific diversification dynamics in Neotropical montane versus lowland canopy birds (Thraupidae: Tangara) revealed by whole-genome comparative phylogeography. 基于全基因组比较系统地理学的新热带山地与低地冠层鸟类不同种内多样性动态研究

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2026-02-18 DOI: 10.1093/evolut/qpaf247

Kristen S Wacker, Benjamin M Winger

{"title":"Distinct intraspecific diversification dynamics in Neotropical montane versus lowland canopy birds (Thraupidae: Tangara) revealed by whole-genome comparative phylogeography.","authors":"Kristen S Wacker, Benjamin M Winger","doi":"10.1093/evolut/qpaf247","DOIUrl":"10.1093/evolut/qpaf247","url":null,"abstract":"Comparing phylogeographic patterns across different biogeographic regions can illuminate how different types of landscapes promote the formation and persistence of incipient species, providing insights into the evolutionary mechanisms underlying broadscale biodiversity gradients. The Neotropics are a global biodiversity hotspot, and the megadiverse Andes-Amazonia system exhibits elevational gradients in both species richness and speciation rates. Using whole genomes from a congeneric set of eight habitat-generalist canopy frugivore birds (Tangara tanagers), we compare the phylogeography of tropical Andean versus lowland Amazonian species to characterize intraspecific diversification dynamics associated with these distinct but adjacent biomes. We found that all species exhibited low genetic structure consistent with their dispersive ecology, but Andean species have relatively greater population genetic structuring across their ranges than Amazonian species. Additionally, populations separated by prominent geoclimatic barriers showed lower gene flow and higher differentiation in montane versus lowland Tangara. Lastly, all Andean species have lower genetic diversity, a proxy of effective population size. Together, these results support greater incipient speciation in the mountains owing to stronger allopatry and smaller populations, while the larger, more diverse, and well-connected populations of the lowlands may foster enhanced persistence. We discuss potential implications for the origin and maintenance of regional biodiversity gradients.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"441-459"},"PeriodicalIF":2.6,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145647849","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