IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-08-01 DOI: 10.1093/evolut/qpaf159

Victor de Brito, Kyle R Piller, Devin D Bloom

{"title":"Ecological Opportunity Spurred Adaptive Radiation of Central Mexican Silversides: Evidence from Functional and Morphometric Traits.","authors":"Victor de Brito, Kyle R Piller, Devin D Bloom","doi":"10.1093/evolut/qpaf159","DOIUrl":"https://doi.org/10.1093/evolut/qpaf159","url":null,"abstract":"Dispersal to a geographic area or colonizing a new habitat can lead to ecological opportunity, which predicts that in absent or reduced competition, lineages can diversify to exploit available resources, ultimately leading to adaptive radiation. We investigated the role of colonizing new environments with novel community contexts in Central Mexican Silversides, a putative adaptive radiation. We explored macroevolutionary dynamics of speciation and phenotypic evolution across New World Silversides in different community settings. We analyzed geometric morphometric, linear, and functional traits, three classes of morphological data rarely evaluated jointly in a single group. We found that Central Mexican Silversides, which occupy a region characterized by low species richness, and isolated freshwater habitats, experienced elevated rates of phenotypic evolution and speciation. In the absence of ecological opportunity, other lineages of Menidiinae experienced constant evolutionary rates through time and patterns consistent with non-adaptive diversification dynamics. We found that traits related to piscivory and burst-swimming have the highest rates of evolution in Central Mexican Silversides. We also show that functional traits and linear morphometrics better capture among lineage variation than body shape data. Our study shows that unique paleogeographic and ecological settings can promote adaptive radiation in clades that otherwise experience steady-state diversification dynamics.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144759485","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

Identification of multivariate phenotypes most influenced by mutation: Drosophila serrata wings as a case study. 受突变影响最大的多变量表型的鉴定：以锯齿果蝇翅膀为例研究。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-08-01 DOI: 10.1093/evolut/qpaf160

Cara Conradsen, Katrina McGuigan

{"title":"Identification of multivariate phenotypes most influenced by mutation: Drosophila serrata wings as a case study.","authors":"Cara Conradsen, Katrina McGuigan","doi":"10.1093/evolut/qpaf160","DOIUrl":"https://doi.org/10.1093/evolut/qpaf160","url":null,"abstract":"The distribution of pleiotropic mutational effects impacts phenotypic adaptation. However, small effect sizes and high sampling error of covariances hinder investigations of the factors influencing this distribution. Here, we explored the potential for shared information across traits affected by the same mutations to counter sampling error, allowing robust characterisation of patterns of mutational input. Exploiting a published dataset representing 12 samples of the same mutation accumulation experiment in Drosophila serrata, we inferred robust signals of mutational effects from the concordance across samples. Krzanowski common subspace analysis identified a multivariate wing trait with statistically supported mutational variance in all samples. Importantly, this multivariate trait was aligned with the major axis of among-line (mutational) variance within most population samples. That is, despite considerable heterogeneity among samples in individual (co)variance parameter estimates, the predominant pattern of correlated mutational effects was identified in each dataset. Two other multivariate traits were statistically supported across most samples. Smaller effect sizes (lower mutational variance) with concomitant larger sampling error or other factors (e.g., microenvironmental dependence of effects) may reduce the robustness of estimated mutational input for these traits. Overall, our results suggest that multivariate analyses of mutation accumulation experiments can detect the true signal of pleiotropic mutation, and that sampling error does not preclude such studies from extending our knowledge of pleiotropic mutational effects.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144759486","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 : 2025-08-01 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":"https://doi.org/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 two-fold 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 analyse 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":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","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

Suppression of sex-ratio drive in Drosophila subobscura. 亚果蝇性别比例驱动的抑制。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-07-30 DOI: 10.1093/evolut/qpaf153

Sophie Lyth, Tom Gill, Andri Manser, Jolanta Tanianis, Gregory D D Hurst, Andrea J Betancourt, Thomas A R Price, Rudi L Verspoor

{"title":"Suppression of sex-ratio drive in Drosophila subobscura.","authors":"Sophie Lyth, Tom Gill, Andri Manser, Jolanta Tanianis, Gregory D D Hurst, Andrea J Betancourt, Thomas A R Price, Rudi L Verspoor","doi":"10.1093/evolut/qpaf153","DOIUrl":"https://doi.org/10.1093/evolut/qpaf153","url":null,"abstract":"Selfish genetic elements (SGEs) enjoy an evolutionary advantage by enhancing their own transmission to offspring, and their genetic suppressors are favoured when they re-establish fair inheritance patterns. Here, we study an X-linked Sex Ratio drive system (SR) in Drosophila subobscura, which kills Y-bearing sperm of SR males, resulting in the over-transmission of the SR-chromosome and a strong female-bias in their offspring. We surveyed D. subobscura populations in North Africa, which naturally harbour SR, and find that suppression occurs in ∼13.5% of wild-derived lines. We characterise this suppression phenotype though a series of crossing experiments, including multigenerational introgression of SR chromosomes into a suppressing genetic background. We show that introgression can restore normal offspring sex ratios, or, in some cases, result in an excess of male offspring. This suppression appears to be a multilocus trait, involving autosomes and the Y-chromosomes. Suppression of SR fails to ameliorate all costs of drive, with fully suppressed SR-carrying males having depressed fertility and low offspring egg hatch rates. Further, examination of internal male reproductive organs using microscopy suggests that suppressed SR males also have abnormal testes. These factors may explain why the suppression fails to reach high frequencies, despite the strong advantage of suppressing SR.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144741677","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: 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 : 2025-07-30 DOI: 10.1093/evolut/qpaf152

Stefano Bettinazzi

引用次数: 0

The genetic basis of natural variation in sociability. 社交能力自然变异的遗传基础。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-07-30 DOI: 10.1093/evolut/qpaf158

Arteen Torabi-Marashi, Dania Daanish, Andrew M Scott, Reuven Dukas, Ian Dworkin

引用次数: 0

Cryptic female choice can maintain reproductive isolation. 隐雌选择可以维持生殖隔离。

IF 2.6 2区环境科学与生态学

Evolution Pub Date : 2025-07-29 DOI: 10.1093/evolut/qpaf156

Matthew C Kustra, Maria R Servedio, Suzanne H Alonzo

{"title":"Cryptic female choice can maintain reproductive isolation.","authors":"Matthew C Kustra, Maria R Servedio, Suzanne H Alonzo","doi":"10.1093/evolut/qpaf156","DOIUrl":"https://doi.org/10.1093/evolut/qpaf156","url":null,"abstract":"Sexual selection has long been considered an important mechanism of speciation. Despite growing empirical evidence that postmating sexual selection-selection on traits that affect fertilization-is common, most speciation theory has focused on premating sexual selection. Cryptic female choice can result in assortative fertilization, e.g., conspecific sperm precedence-a process where females bias fertilization towards conspecific males during sperm competition. Although there is empirical evidence of conspecific sperm precedence in a wide range of taxa, there is little theory on conspecific sperm precedence via cryptic female choice, limiting our understanding of how it contributes to speciation. We use simulation models of secondary contact to ask under what circumstances conspecific sperm precedence can evolve and maintain reproductive isolation. We found that cryptic female choice alone can maintain reproductive isolation under limited but realistic conditions, specifically when the migration rate is low, cryptic preferences are strong, and multiple mating is intermediate. In combination with ecological divergence, cryptic female choice was able to maintain reproductive isolation even at high rates of migration. We also found that conspecific sperm precedence could evolve through reinforcement. Our results demonstrate that cryptic female choice could maintain reproductive isolation and, therefore, can contribute to species divergence and maintenance.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144741755","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 : 2025-07-29 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":"https://doi.org/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 two 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":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-29","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

Assessing the effect of experimental evolution under combined thermal-nutritional stress on larval thermotolerance and thermal plasticity in Drosophila melanogaster. 热营养联合胁迫下实验进化对黑腹果蝇幼虫耐热性和热可塑性的影响

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-07-18 DOI: 10.1093/evolut/qpaf151

Yeuk Man Movis Choy, Fiona E Cockerell, Sandra Hangartner, Christen K Mirth, Carla M Sgr

{"title":"Assessing the effect of experimental evolution under combined thermal-nutritional stress on larval thermotolerance and thermal plasticity in Drosophila melanogaster.","authors":"Yeuk Man Movis Choy, Fiona E Cockerell, Sandra Hangartner, Christen K Mirth, Carla M Sgr","doi":"10.1093/evolut/qpaf151","DOIUrl":"https://doi.org/10.1093/evolut/qpaf151","url":null,"abstract":"Animals commonly face combinations of thermal and nutritional stress in nature, which will intensify under climate change. While genetic adaptation is necessary to buffer long-term stress, it's unclear whether adaptation to combined stress can occur without compromising viability and thermal plasticity. We tested larval thermotolerance and thermal plasticity in Drosophila melanogaster selected under different temperatures (18°C, 25°C, and 28°C) and diets (standard, diluted, and low-protein: high-carbohydrate [P: C]). Basal larval cold tolerance was affected by both protein concentration and temperature; larvae evolved higher basal cold tolerance on the diluted and low P: C diets at 18°C and 28°C. Hardening increased cold tolerance for most lines, except those selected at 18°C and 28°C on low P: C diets and at 25°C on standard diets. Basal larval heat tolerance was affected by selection temperature; selection at 25°C increased heat tolerance. An interaction between selection temperature, selection diet, and hardening treatment affected larval heat tolerance; hardening reduced heat tolerance in most lines, except those selected at 25°C on low P: C diets and at 28°C on standard diets. Our results suggest that adaptation to combined stress allows basal cold tolerance and its plasticity to co-evolve, but not heat tolerance, highlighting ectotherm's vulnerability to long-term climate change.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144658801","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. 太平洋蟋蟀稳定的定向性选择和可重复的鸣声偏好。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-07-18 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":"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 2 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 the 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. Furthermore, 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 2 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":"1216-1226"},"PeriodicalIF":3.1,"publicationDate":"2025-07-18","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

Evolution最新文献