Evolution最新文献_第3页

Digest: Longitudinal data demonstrate heightened environmental sensitivity of sexually selected trait expression.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-24 DOI: 10.1093/evolut/qpaf060

Oliver A Kompathoum, Patrick W Kelly

引用次数: 0

Form-function relationships within species are uncoupled from those across species in swimming and jumping performance in arboreal frogs.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-22 DOI: 10.1093/evolut/qpaf058

Monique Nouailhetas Simon, Megan Wildman, Daniel S Moen

{"title":"Form-function relationships within species are uncoupled from those across species in swimming and jumping performance in arboreal frogs.","authors":"Monique Nouailhetas Simon, Megan Wildman, Daniel S Moen","doi":"10.1093/evolut/qpaf058","DOIUrl":"https://doi.org/10.1093/evolut/qpaf058","url":null,"abstract":"Variation of form-function relationships within populations is the substrate for adaptation at higher levels. Therefore, assessing similarity in form-function relationships within and between species may help reveal the processes shaping functional diversity. Here we test such similarity across three levels of anuran phenotypic divergence: within a population, among species in a single family (Hylidae; ~60 myr), and across a much broader sample of all anuran species using a single microhabitat (arboreal; ~120 myr). We expected less interspecific divergence to show higher similarity of form-function relationships with the intraspecific level. We analyzed the relationships between locomotor performance (in both swimming and jumping) and several hindlimb traits across these three evolutionary levels. While we found a positive correlation between swimming and jumping velocity at both intra- and interspecific levels, relationships between performance and body form did not match across levels. We suggest that different strengths of functional constraints or trade-offs may have produced more variation in form-function relationships across species, decoupling them from within-species patterns. We conclude that performance landscapes are likely qualitatively different across the different evolutionary scales, potentially reflecting changes in the relative importance of different behaviors across all arboreal species.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676749","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

Genomic discordance throws a wrench in the parallel speciation hypothesis for scincid lizards.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-22 DOI: 10.1093/evolut/qpaf059

Jonathan Q Richmond, Andrew D Gottscho, Elizabeth L Jockusch, Adam D Leaché, Robert N Fisher, Tod W Reeder

{"title":"Genomic discordance throws a wrench in the parallel speciation hypothesis for scincid lizards.","authors":"Jonathan Q Richmond, Andrew D Gottscho, Elizabeth L Jockusch, Adam D Leaché, Robert N Fisher, Tod W Reeder","doi":"10.1093/evolut/qpaf059","DOIUrl":"https://doi.org/10.1093/evolut/qpaf059","url":null,"abstract":"Parallel evolution of the same reproductive isolation barrier within a taxon is an indicator of ecology's role in speciation (i.e., parallel speciation), yet spatiotemporal variability in the efficacy of the barrier can present challenges to retracing how it evolved. Here, we revisit the evidence for a candidate example of parallel speciation in a clade of scincid lizards (the Plestiodon skiltonianus complex) using genomic data, with emphasis on determining whether hybridization may have confounded the phylogenetic signals of parallelism for this group. Our results show a striking case of genealogical discordance, where mitochondrial loci support multiple origins of a derived large-bodied morphotype (Plestiodon gilberti) within a small-bodied ancestor (Plestiodon skiltonianus), while nuclear loci indicate a single origin. We attribute the discordance to separate, temporally-spaced hybridization events that led to asymmetric capture of P. skiltonianus mitochondria in different regional lineages of P. gilberti. Nuclear introgression showed a similar directional bias but was less pervasive. We demonstrate how a mechanical reproductive barrier previously identified for this group explains the asymmetry of mitochondrial introgression, given that hybrid matings are most likely when the male is P. gilberti and the female is P. skiltonianus. We then use permutation tests of morphological data to provide evidence that the mechanical barrier is less stringent in areas where hybridization is inferred to have occurred. Our results demonstrate how biased hybridization can dictate which genetic variants are transmitted between species and emphasize the importance of accounting for introgression and deep coalescence in identifying phyletic signatures of parallel speciation.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691530","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

Parental care drives the evolution of male reproductive accessory glands across ray-finned fishes. 父母的关爱推动了魟形鳍鱼类雄性生殖附属腺体的进化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-22 DOI: 10.1093/evolut/qpaf062

Lucas Eckert, Jessica S Miller, John L Fitzpatrick, Sigal Balshine, Benjamin M Bolker

{"title":"Parental care drives the evolution of male reproductive accessory glands across ray-finned fishes.","authors":"Lucas Eckert, Jessica S Miller, John L Fitzpatrick, Sigal Balshine, Benjamin M Bolker","doi":"10.1093/evolut/qpaf062","DOIUrl":"https://doi.org/10.1093/evolut/qpaf062","url":null,"abstract":"Reproductive accessory glands are organs involved in reproduction that do not directly produce or release gametes but can play crucial roles in securing reproductive success. In fishes, the two leading hypotheses about why accessory glands evolved are 1) in response to sperm competition, or 2) to facilitate parental care activities. Here, we investigate the evolutionary history of accessory glands and test these hypotheses by estimating quantitative differences in evolutionary rates. We found that accessory glands are present in 116 of the 607 sampled species of ray-finned fishes, representing 26/267 families. We estimated that accessory glands have arisen independently ~20 times and that these glands were gained 5.8 times faster in lineages with male parental care, compared to those without male care, supporting the hypothesis that they evolved to facilitate care. In contrast, group spawning, used as a proxy for sperm competition risk, seemed to select against the evolution of accessory glands, as lineages exhibiting group spawning gained accessory glands 3.9 times slower than those with pair spawning (though this failed to reach statistical significance). This study provides new insights into the evolutionary history of accessory glands in fishes and highlights the importance of parental care in shaping reproductive anatomy.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676753","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

Stable directional sexual selection and repeatable choosiness for song preference in the Pacific field cricket Teleogryllus oceanicus.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-20 DOI: 10.1093/evolut/qpaf055

Mingzi Xu, Marlene Zuk

{"title":"Stable directional sexual selection and repeatable choosiness for song preference in the Pacific field cricket Teleogryllus oceanicus.","authors":"Mingzi Xu, Marlene Zuk","doi":"10.1093/evolut/qpaf055","DOIUrl":"https://doi.org/10.1093/evolut/qpaf055","url":null,"abstract":"Choosiness, or how picky an individual is in mate choice, is key to both sexual selection and speciation. Yet the amount of phenotypic variation in choosiness and how that variation is partitioned among individuals remain largely unexplored. Here, using the Pacific field cricket Teleogryllus oceanicus, we dissect preference for two song traits, proportion of long chirp and interpulse interval. We subsequently quantify phenotypic variation in choosiness and investigate whether there is consistent individual variation in choosiness and whether choosiness for different song traits covary. Strikingly, we found that the overall shape and peak preference for proportion of long chirp remained similar to those reported in an earlier study from the same population more than a decade ago, providing evidence that directional sexual selection can be relatively stable over long time frames in wild populations. Further, we found moderate levels of within-individual repeatability in choosiness for both song traits, suggesting a substantial level of individual variation in choosiness. Interestingly, choosiness for the two song traits positively covaries, indicating that there may exist overall choosier and more permissive females in song preference.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662919","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

Range size variably predicts genetic diversity in Gehyra geckos.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-20 DOI: 10.1093/evolut/qpaf057

Ching Ching Lau, Keith Christian, Jessica Fenker, Rebecca J Laver, Kate O'Hara, Stephen M Zozaya, Craig Moritz, Emily Roycroft

{"title":"Range size variably predicts genetic diversity in Gehyra geckos.","authors":"Ching Ching Lau, Keith Christian, Jessica Fenker, Rebecca J Laver, Kate O'Hara, Stephen M Zozaya, Craig Moritz, Emily Roycroft","doi":"10.1093/evolut/qpaf057","DOIUrl":"https://doi.org/10.1093/evolut/qpaf057","url":null,"abstract":"Genetic diversity is a fundamental population genetic parameter, and predicts adaptive capacity. Neutral theory predicts a positive correlation between population (or range) size and genetic diversity, but this can be confounded by other demographic processes. To investigate the role of range size, population fluctuation and introgression in determining genetic diversity, we generate and analyse population-level, genomic-scale SNP data from 21 species of Australian Gehyra geckos (769 samples) that vary in range size over three orders of magnitude. Using a best-practice approach to estimate heterozygosity, we found a significantly positive overall correlation between range size and heterozygosity (R2 = 0.30, p < 0.01), although with a shallow slope, consistent with Lewontin's Paradox. At a clade level, we show a stronger relationship between range size and heterozygosity in the australis group (R2 = 0.74, p < 0.01) than the nana group (R2 = 0.15, n.s.). A significantly negative correlation between genome-wide Tajima's D and range size in both groups, indicating population expansion, and evidence for introgression in the nana group, suggest a role for both population fluctuation and introgression in driving deviations from theoretical expectations. Our results provide insight into the biological and demographic processes that influence genetic diversity, in addition to neutral expectations.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662945","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).

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-20 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":"https://doi.org/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":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-20","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

Coevolution and the diversification of nestling ornamentation in a species-rich avian radiation.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-18 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":"https://doi.org/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 parasitised by Vidua finches whose offspring mimic host nestling phenotypes. We examined the role of brood parasitism, predation, sibling competition and signalling environment in the diversification of nestling ornamentation. We found that parasitised lineages exhibit elevated rates of nestling ornamentation evolution compared to unparasitised lineages. Despite this, the extent to which nestlings were ornamented did not differ between parasitised and unparasitised 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 strong phylogenetic signal, helping to explain why successfully colonised 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":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-18","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

Plastic mechanisms for unraveling a universal trade-off between water loss and respiration.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-17 DOI: 10.1093/evolut/qpaf056

Braulio A Assis, Cameron K Ghalambor, Eric Riddell

{"title":"Plastic mechanisms for unraveling a universal trade-off between water loss and respiration.","authors":"Braulio A Assis, Cameron K Ghalambor, Eric Riddell","doi":"10.1093/evolut/qpaf056","DOIUrl":"https://doi.org/10.1093/evolut/qpaf056","url":null,"abstract":"Phenotypic expression is often constrained by functional conflicts between traits, and the resulting trade-offs impose limits on phenotypic and taxonomic diversity. However, the underlying mechanisms that maintain trade-offs or allow organisms to resolve them via phenotypic plasticity are often challenging to detect. The trade-off between gas exchange and water loss across respiratory surfaces represents a fundamental trade-off that constrains phenotypic diversity in terrestrial life. Here, we investigate plastic mechanisms that mitigate this trade-off in lungless salamanders that breathe exclusively across their skin. Our field and laboratory experiments identified plastic responses to environmental variation in water loss and oxygen uptake, and gene expression analyses identified putative pathways that regulate this trade-off. Although the trade-off was generally strong, its strength covaried with environmental conditions. At the molecular level, antagonistic pleiotropy in multiple biological pathways (e.g., vasoconstriction and upregulation of aerobic respiration) putatively produce the trade-off, while other pathways mitigate the trade-off by affecting a single trait (e.g., oxygen binding affinity, melanin synthesis). However, organisms are likely to encounter novel trade-offs in the process of bypassing another. Our study provides evidence that alternative pathways allow organisms to mitigate pleiotropic conflicts, which ultimately may allow greater phenotypic diversity and persistence in novel environments.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647810","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: Do weakly deleterious mutations exacerbate reproductive and health challenges in species with prolonged bottlenecks?

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-16 DOI: 10.1093/evolut/qpaf046

Aryan Ghader

引用次数: 0