Evolution最新文献_第10页

Feeding ecology and allometry underlie distinct axes of mandible and leg evolution in tropical termites. 摄食生态和异速生长是热带白蚁下颌骨和腿部进化的不同轴的基础。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag106

Felipe O Cerezer, Renato Almeida de Azevedo, José Wellington de Morais, Cristian de Sales Dambros

{"title":"Feeding ecology and allometry underlie distinct axes of mandible and leg evolution in tropical termites.","authors":"Felipe O Cerezer, Renato Almeida de Azevedo, José Wellington de Morais, Cristian de Sales Dambros","doi":"10.1093/evolut/qpag106","DOIUrl":"10.1093/evolut/qpag106","url":null,"abstract":"Understanding how ecological pressures and allometry contribute to morphological evolution remains a central goal in evolutionary biology. We examined mandible and leg shape in nearly 100 Amazonian termite species using geometric morphometrics and phylogenetic comparative methods. This approach allowed us to assess how feeding ecology and centroid size of body parts contribute to shape variation while accounting for shared evolutionary history across species. We show that mandible shape varies with feeding ecology along a wood-to-soil (humification) gradient, with wood-feeding species exhibiting shorter, more robust mandibles and soil-feeding species showing more elongated forms with a prominent apical tooth. In contrast, leg shape is best explained by leg centroid size and shows limited differentiation across feeding groups. Evolutionary model comparisons indicate that mandible shape is consistent with models suggesting multiple evolutionary optima associated with feeding habit, whereas leg shape is better described by a single optimum. Together, our results indicate that mandible and leg morphology vary along complementary axes: mandibles reflect dietary variation, while legs predominantly scale with size. This illustrates how different processes govern morphological variation in a diverse tropical termite radiation.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1806-1819"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148155871","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: Chance and necessity shape introgression patterns across three replicate avian hybrid zones. 摘要：偶然性和必然性形成了三个复制鸟类杂交带的渗入模式。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag058

Jente Ottenburghs

引用次数: 0

Diversification and divergence in Myioborus warblers: insights into evolutionary relationships and plumage genetics. 小莺的多样化和分化：对进化关系和羽毛遗传学的见解。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag085

Laura N Céspedes Arias, Kevin F P Bennett, Leonardo Campagna, Andrew W Wood, Elisa Bonaccorso, Andrés M Cuervo, Carlos Daniel Cadena, Irby J Lovette, David P L Toews

{"title":"Diversification and divergence in Myioborus warblers: insights into evolutionary relationships and plumage genetics.","authors":"Laura N Céspedes Arias, Kevin F P Bennett, Leonardo Campagna, Andrew W Wood, Elisa Bonaccorso, Andrés M Cuervo, Carlos Daniel Cadena, Irby J Lovette, David P L Toews","doi":"10.1093/evolut/qpag085","DOIUrl":"10.1093/evolut/qpag085","url":null,"abstract":"Genomic data can provide valuable insights into the evolutionary history of rapidly diversifying groups and the genetic basis of phenotypic traits. We performed whole-genome resequencing of the warbler genus Myioborus to investigate the dynamics of its recent diversification in Neotropical mountains. Mitochondrial and nuclear DNA produced mostly concordant tree topologies and revealed a pattern of north-to-south and low-to-high elevation colonization. Within a young tropical Andes clade (M. albifrons, M. ornatus, and M. melanocephalus), we found topological incongruence between our phylogenies. In general, relationships coincided with plumage types; however, three taxa with striking plumage differences exhibited low mitochondrial divergence. The hybridizing taxa M. ornatus chrysops and M. melanocephalus bairdi showed very shallow genomic differentiation, with most divergence peaks across the genome shared with other parulid warbler pairs, pointing to shared genomic architecture shaping these regions. However, a unique differentiated region included the gene CCDC91, which is associated with melanin-based plumage differences in other birds. We also identified a large region of elevated differentiation on the Z chromosome showing strong signals of reduced recombination. Together, these results highlight the interplay of deep ancestral divergence, recent hybridization, and shared genomic architecture in shaping the evolution of phenotypic and genomic diversity in Myioborus.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1703-1718"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147835556","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

Correcting for complexity: incorporating trait-numbers enhances the performance of EMMLi in investigating modularity. 修正复杂性：结合特征数提高EMMLi在调查模块化方面的性能。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag080

Jessica Hilary Arbour

{"title":"Correcting for complexity: incorporating trait-numbers enhances the performance of EMMLi in investigating modularity.","authors":"Jessica Hilary Arbour","doi":"10.1093/evolut/qpag080","DOIUrl":"10.1093/evolut/qpag080","url":null,"abstract":"Adams and Collyer (2019) evaluated the statistical performance of several approaches for quantifying morphological modularity and found that EMMLi had inflated type I error rates and a bias toward more complex models compared to the Covariance Ratio (CR) approach. They suggested that this may have been at least partly driven by the fact that AICc values from EMMLi do not incorporate trait numbers, but this was not verified. Here, I present a performance analysis of a trait-number corrected EMMLi approach (\"EMMLip\"), showing that this ameliorates rates of false discovery and produces conservative results that favor less complex models. The corrected EMMLi approach was effective at differentiating models of modularity with varying between- and within-module covariation especially when effect size or dataset size were sufficiently large. While CR tests remained more effective at specifically detecting overall modularity, I found that CR tests are sensitive to varying within/between module covariation, and in some cases had inflated model misspecification between 2- and 3-module hypotheses. With this minor correction (albeit incomplete), the combination of EMMLip and CR tests becomes the best available toolkit for detecting and contrasting modularity hypotheses. This toolkit is however still imperfect, and I discuss future avenues for improvements.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1868-1876"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147835522","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

Lifetime fitness and annual survival are heritable and highly genetically correlated in a wild primate population. 在野生灵长类动物种群中，终生健康和年存活率是可遗传的，并且具有高度的遗传相关性。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag086

Beniamino Tuliozi, Elizabeth A Archie, Jenny Tung, Susan C Alberts

{"title":"Lifetime fitness and annual survival are heritable and highly genetically correlated in a wild primate population.","authors":"Beniamino Tuliozi, Elizabeth A Archie, Jenny Tung, Susan C Alberts","doi":"10.1093/evolut/qpag086","DOIUrl":"10.1093/evolut/qpag086","url":null,"abstract":"The additive genetic variance (VA) of fitness quantifies the expected response to selection. Lifetime reproductive success (LRS) is an effective metric of lifetime fitness in animal population, while time-limited fitness metrics such as annual survival or fertility can help to identify which fitness component-e.g., annual survival or fertility-harbors the most VA in fitness. Here, we estimated the VA and heritability (h2) of LRS and 3 time-limited fitness metrics in a wild female baboon population in Kenya. The most heritable metrics were LRS (h2 = 0.25 [0.18, 0.34]) and annual survival (h2 = 0.23 [0.15, 0.33]). By further partitioning LRS, we were able to show that nearly all the VA for LRS was attributable to survival to first successful reproduction. Furthermore, all fitness metrics examined were highly genetically correlated with each other, supporting the use of time-limited metrics when LRS data are limited. Our analyses predicted faster phenotypic evolution than we have observed, raising the possibility that environmental or social variables masked responses to selection or inflated estimated VA. Overall, our findings reveal a substantial genetic contribution to variation in survival, and in turn, to fitness and contemporary evolution in a long-lived animal.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1643-1656"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13478859/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147835594","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

Behavior evolves as a correlated response to selection on cuticle color in Drosophila melanogaster and D. simulans. 黑腹果蝇和拟南果蝇的行为进化是对角质层颜色选择的相关反应。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag105

Sarah N Ruckman, Alexandra G Duffy, Paulina Montes Mendez, Katelyn D McCaffery, Samuel Miller, Addison Crews, Nicholas Tan, Lauren A Campbell, Ashley March, Elizabeth B Brown, David Houle

{"title":"Behavior evolves as a correlated response to selection on cuticle color in Drosophila melanogaster and D. simulans.","authors":"Sarah N Ruckman, Alexandra G Duffy, Paulina Montes Mendez, Katelyn D McCaffery, Samuel Miller, Addison Crews, Nicholas Tan, Lauren A Campbell, Ashley March, Elizabeth B Brown, David Houle","doi":"10.1093/evolut/qpag105","DOIUrl":"10.1093/evolut/qpag105","url":null,"abstract":"We selected for light and dark thoracic colors for 16 generations in two populations per species and measured correlated responses in aggression, basal activity, total activity, sleep, and geotaxis. Dark selected individuals consistently showed higher aggression and basal activity than light selected or control flies across species and sexes, indicating a modest, repeatable correlated response. Geotaxis, sleep, and total activity evolved unpredictably, varying across species and populations with no clear color association. Within-population correlations between color and aggression were significant but weak, indicating that color is a poor predictor of individual aggressive behavior. Populations with higher aggression evolved higher basal activity, suggesting a correlated response rather than a direct color-activity link. These persistent correlated responses are consistent with a conserved genetic basis (pleiotropy or linkage disequilibrium), though our data do not distinguish between them. Identifying loci underlying variation in color and behavior and experimentally testing their effects will clarify how multivariate genetic covariance shapes adaptive evolution.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1792-1805"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148175673","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

Convergence, stability, and thermal adaptation of the rubisco large subunit in plants. rubisco大亚基在植物中的收敛性、稳定性和热适应性。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag093

Arthur Leung, Belinda S W Chang, Rowan F Sage

{"title":"Convergence, stability, and thermal adaptation of the rubisco large subunit in plants.","authors":"Arthur Leung, Belinda S W Chang, Rowan F Sage","doi":"10.1093/evolut/qpag093","DOIUrl":"10.1093/evolut/qpag093","url":null,"abstract":"Enzymes are adapted to perform optimally in different thermal regimes that would otherwise alter kinetics and stability. Whether adaptive evolution in the photosynthetic enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco) also compensates for thermal variation remains uncertain. We examined molecular evolution and modeled the change in free energy of protein folding (ΔΔG, where negative values indicate stabilization) of the rubisco large subunit (RbcL) in four phylogenetically distant plant genera: wood ferns (Dryopteris), sea lavenders (Limonium), pines (Pinus), and viburnums (Viburnum). Using codon evolutionary models in each genus, we observed widespread positive selection and parallel substitution in the catalytic α/β barrel domain. Species with warmer growing seasons had derived amino acids with stronger hydrogen bond contributions to ΔΔG. Protein structure-based modeling showed that the hydrogen bond contribution to stability tracked the growing season temperature of species carrying the derived amino acid. Stronger hydrogen bonds were offset by weaker contributions from hydrophobic solvation interactions, such that total ΔΔG showed no relationship with growing season temperature. In Viburnum, the strength of positive selection differed among biomes, with cold temperate and cloud forest clades showing stronger positive selection. These patterns are consistent with environmental tuning of non-covalent interactions within the enzyme. However, modest effect sizes indicate that other components of the rubisco holoenzyme likely also contribute to its thermal evolution.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1719-1732"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148005102","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 architecture of the developing forelegs of Drosophila prolongata: an exaggerated weapon and ornament. 长果蝇前肢发育的基因组结构夸张的武器和装饰品

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag096

Tyler Audet, Jhoniel Perdigón Ferreira, Abhishek Meena, Mariam Abass, Arteen Torabi-Marashi, John Yeom, Fatima Zaghloul, Nour Zaghloul, Arie Mizrahi, Julia Novikov, Emma Xi, Stefan Lüpold, Ian Dworkin

{"title":"Genomic architecture of the developing forelegs of Drosophila prolongata: an exaggerated weapon and ornament.","authors":"Tyler Audet, Jhoniel Perdigón Ferreira, Abhishek Meena, Mariam Abass, Arteen Torabi-Marashi, John Yeom, Fatima Zaghloul, Nour Zaghloul, Arie Mizrahi, Julia Novikov, Emma Xi, Stefan Lüpold, Ian Dworkin","doi":"10.1093/evolut/qpag096","DOIUrl":"10.1093/evolut/qpag096","url":null,"abstract":"Elaborate secondary sexual traits are among the most striking phenotypes in nature. Functional genetic studies of these phenotypes generally focus on within-species analyses of candidate pathways, providing insight into mechanisms of trait expression, not necessarily genetic differences contributing to evolutionary change. Drosophila prolongata offers an exceptional model to explore evolution of trait exaggeration, as the only known species with male-specific foreleg size exaggeration in the melanogaster species group. We performed sex-specific RNA-seq in developing foreleg and midleg tissues (imaginal discs) sampled at both onset, and just after initiation of, sexually dimorphic growth in D. prolongata, D. carrolli (∼4 mya divergence), and D. melanogaster (∼35 mya). We observed a positive relationship between number, but not magnitude, of differentially expressed sex-biased genes, with the extent of adult phenotypic dimorphism. Using genes identified from our differential expression analysis, we used RNAi knockdown in D. melanogaster to test their role in leg growth. Knockdown of several genes had quantitative impacts, while the gene, grain, caused D. prolongata-like leg phenotypes. We also observed modest changes in magnitude and direction of expression differences, in signaling pathways previously implicated in sexually dimorphic evolution in other species. Our results are consistent with the evolution of sex-specific phenotypes being jointly mediated by few genes with large, and many more genes with modest impacts on sex-biased gene expression.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1748-1765"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148005128","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

Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation. 配子体自交不亲和下自交多倍体的建立：自花受精和花粉限制的影响。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag107

Diane Douet, Xavier Vekemans, Josselin Clo

{"title":"Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation.","authors":"Diane Douet, Xavier Vekemans, Josselin Clo","doi":"10.1093/evolut/qpag107","DOIUrl":"10.1093/evolut/qpag107","url":null,"abstract":"Polyploidy is widespread in plants, yet the establishment of neo-polyploids is limited by minority cytotype exclusion (MCE). As polyploidy has been associated with higher selfing rates in empirical studies, a shift from self-incompatibility (SI) to self-compatibility (SC) may help overcome MCE, particularly under gametophytic SI (GSI) with non-self-recognition where an automatic shift to SC is associated with polyploidy. We theoretically investigated the joint evolution of polyploidy and self-compatibility and its impact on tetraploid establishment in initially diploid populations with GSI under different pollen limitation scenarios, and with fixed or variable selfing rates for polyploids. It is shown that, for high pollen limitation scenarios, autotetraploids can invade an initially diploid population only when the selfing rates are high. Under low pollen limitation, the conditions for tetraploid invasion are less restrictive (selfing rates above 0.3). These results apply to scenarios with either fixed or variable selfing rates in polyploids, but in the latter, high mutation rates of the selfing rate are needed for polyploidy to invade. These results suggest that tetraploid establishment is possible through the evolution of selfing, without introducing a non-functional S-allele. However, the conditions strongly depend on the degree of pollen limitation.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1820-1836"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148210591","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

Effects of deleterious mutations on the fixation of chromosomal inversions on autosomes and sex chromosomes. 有害突变对常染色体和性染色体染色体倒位固定的影响。

IF 3 2区环境科学与生态学

Evolution Pub Date : 2026-08-17 DOI: 10.1093/evolut/qpag103

Denis Roze, Thomas Lenormand

{"title":"Effects of deleterious mutations on the fixation of chromosomal inversions on autosomes and sex chromosomes.","authors":"Denis Roze, Thomas Lenormand","doi":"10.1093/evolut/qpag103","DOIUrl":"10.1093/evolut/qpag103","url":null,"abstract":"Deleterious mutations have multiple effects on the fate of chromosomal inversions. In this article, we use individual-based simulations to estimate the fixation probabilities of neutral inversions under a constant input of deleterious mutations. As shown previously, we find that \"lucky\" inversions carrying a lower-than-average mutation load are initially favored and tend to selectively spread. Our results also outline the importance of Muller's ratchet caused by the absence of recombination in Y-linked and rare autosomal inversions, reducing their fixation probabilities. Despite the fact that Y-linked inversions are more susceptible to Muller's ratchet, they can more easily fix than autosomal inversions despite initially carrying mutations when these mutations have sufficiently low selection or dominance coefficients (sheltering effect). Similarly, the sheltering of deleterious alleles can increase the fixation probability of inversions capturing a mating-type locus, particularly under intermediate rates of self-fertilization. Overall, our results confirm that when mating is random and for realistic parameter values, the presence of deleterious alleles reduces the average fixation probability of autosomal, sex-linked, or mating type-linked inversions below that of a neutral mutation. Nevertheless, the occasional fixation of a lucky inversion may have important macroevolutionary consequences, potentially contributing to the evolution of recombination arrest on sex chromosomes.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1625-1642"},"PeriodicalIF":3.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148162194","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