Evolution最新文献_第6页

The evolution of a placenta accelerates the evolution of postcopulatory reproductive isolation. 胎盘的进化加速了交配后生殖隔离的进化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-03 DOI: 10.1093/evolut/qpae180

Keenan R Morrison, J Jaime Zúñiga-Vega, Joseph Travis, David N Reznick

{"title":"The evolution of a placenta accelerates the evolution of postcopulatory reproductive isolation.","authors":"Keenan R Morrison, J Jaime Zúñiga-Vega, Joseph Travis, David N Reznick","doi":"10.1093/evolut/qpae180","DOIUrl":"10.1093/evolut/qpae180","url":null,"abstract":"The evolution of placentation is predicted to intensify intergenomic conflicts between mothers and offspring over optimal levels of maternal investment by providing offspring opportunities to manipulate mothers into allocating more resources. Parent-offspring conflicts can result in the evolution of reproductive isolation among populations when conflicts resolve in different ways. Postzygotic reproductive isolation is hypothesized to evolve more rapidly following the evolution of placentation due to the predicted increase in conflict. We tested this hypothesis by performing interpopulation crosses within placental and nonplacental species of Poeciliopsis to determine if the relationship between genetic distance and measures of postzygotic reproductive success differed as function of reproductive mode. We did not observe any differences in offspring viability or sterility among crosses. Offspring size declined rapidly as a function of interpopulation genetic distance within the placental species, but not among our nonplacental species. The decrease in offspring size in the placental species was beyond normal variation, likely representing a major fitness cost, consistent with the prediction that negative epistatic interactions are evolving more quickly among populations in our placental species than the nonplacental species. We discuss how our results support the role parent-offspring conflicts play in the evolution of reproductive isolation and reproductive mode.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"457-466"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823937","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

Suture zones, speciation, and evolution. 缝合带、物种形成和演化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-03 DOI: 10.1093/evolut/qpae184

Daniel R Wait, Joshua V Peñalba

{"title":"Suture zones, speciation, and evolution.","authors":"Daniel R Wait, Joshua V Peñalba","doi":"10.1093/evolut/qpae184","DOIUrl":"10.1093/evolut/qpae184","url":null,"abstract":"In the more than 50 years since the initial conceptualization of the suture zone, little work has been done to take full advantage of the comparative capability of these geographic regions. During this time, great advances have been made in hybrid zone research that have provided invaluable insight into speciation and evolution. Hybrid zones have long been recognized to be \"windows to the evolutionary process.\" If a single hybrid zone provides a window, then multiple hybrid zones in a suture zone can provide a panoramic view of the evolutionary process. Here, we hope to redirect attention to suture zones, bring the advances from hybrid zone research to a comparative framework, and further expand our understanding of speciation and evolution. In this review, we recount the historical discussions surrounding suture zones, briefly review what we can learn from hybrid zones, and review the comparative studies done on suture zones thus far. We also highlight the opportunities and challenges of performing research in suture zones to help guide researchers hoping to start a research project in these regions. Lastly, we propose future directions and questions for comparative research that can be done in suture zones.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"329-341"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142871816","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

Selective advantage of redirected helping in a viscous population. 粘性群体中重定向帮助的选择优势。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-03 DOI: 10.1093/evolut/qpae175

Alan Flatrès, Geoff Wild

{"title":"Selective advantage of redirected helping in a viscous population.","authors":"Alan Flatrès, Geoff Wild","doi":"10.1093/evolut/qpae175","DOIUrl":"10.1093/evolut/qpae175","url":null,"abstract":"When a brood fails, the failed parent can help a neighbor rear its offspring. This behavior is known as redirected helping and occurs in various species. The advantage of redirected helping may seem obvious, provided the individual whose brood fails helps a related neighbor: The helper at least gains indirect fitness by redirecting its parental effort. However, complications arise when considering a viscous population, where individuals remain on or close to their natal site. In such a population, individuals compete with relatives, which dilutes the advantage of helping and may counteract it altogether. This raises a question: when can we expect redirected helping to evolve in a viscous population? We address this question with inclusive fitness models. We find that redirected helping can always be favored in a viscous population, provided the cost is sufficiently low. We also identify life-history features-like survival, dispersal, and brood-failure rate-that promote redirected helping. The effect of these life-history features, in general, depends on which component of fitness (survival or fecundity) benefits from help and how brood failure varies among demes. Unlike previous authors, we find that helping can be more strongly promoted when it provides survival rather than fecundity benefits.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"423-431"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142806412","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

Long-sperm precedence and other cryptic female choices in Drosophila melanogaster. 黑腹果蝇的长精子优先和其他神秘的雌性选择。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-03 DOI: 10.1093/evolut/qpae183

Brooke Peckenpaugh, Joanne Y Yew, Leonie C Moyle

{"title":"Long-sperm precedence and other cryptic female choices in Drosophila melanogaster.","authors":"Brooke Peckenpaugh, Joanne Y Yew, Leonie C Moyle","doi":"10.1093/evolut/qpae183","DOIUrl":"10.1093/evolut/qpae183","url":null,"abstract":"Females that mate multiply make postmating choices about which sperm fertilize their eggs (cryptic female choice); however, the male characteristics they use to make such choices remain unclear. In this study, we sought to understand female sperm use patterns by evaluating whether Drosophila melanogaster females adjust sperm use (second male paternity) in response to 4 main factors: male genotype, male courtship effort, male pheromone alteration, and male postmating reproductive morphology. Our experiment was replicated across 4 different D. melanogaster lines, in a full factorial design, including a pheromone manipulation in which second males were perfumed to resemble heterospecific (Drosophila yakuba) males. We found that females prefer longer sperm-regardless of mating order-in almost all contexts; this observed pattern of \"long-sperm precedence\" is consistent with female postmating choice of high-fitness male traits. Nonetheless, we also found that this general preference can be plastically altered by females in response to effects including perfuming treatment; this differential female sperm use is between otherwise identical males, and therefore solely female-mediated. Furthermore, our finding that females exercise choice using diverse criteria suggests a possible mechanism for the maintenance of variation in sexually selected male traits.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"467-482"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11879153/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142871798","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

Contact zones reveal restricted introgression despite frequent hybridization across a recent lizard radiation. 接触区显示了有限的基因渗入，尽管在最近的蜥蜴辐射中频繁杂交。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-03 DOI: 10.1093/evolut/qpae174

Stephen M Zozaya, Scott A Macor, Rhiannon Schembri, Megan Higgie, Conrad J Hoskin, Kate O'Hara, Ching Ching Lau, Wesley J Read, Craig Moritz

{"title":"Contact zones reveal restricted introgression despite frequent hybridization across a recent lizard radiation.","authors":"Stephen M Zozaya, Scott A Macor, Rhiannon Schembri, Megan Higgie, Conrad J Hoskin, Kate O'Hara, Ching Ching Lau, Wesley J Read, Craig Moritz","doi":"10.1093/evolut/qpae174","DOIUrl":"10.1093/evolut/qpae174","url":null,"abstract":"Introgression-the exchange of genetic material through hybridization-is now recognized as common among animal species. The extent of introgression, however, can vary considerably even when it occurs: for example, introgression can be geographically restricted or so pervasive that populations merge. Such variation highlights the importance of understanding the factors mediating introgression. Here we used genome-wide SNP data to assess hybridization and introgression at 32 contact zones, comprising 21 phylogenetic independent contrasts across a recent lizard radiation (Heteronotia). We then tested the relationship between the extent of introgression (average admixture at contact zones) and genomic divergence across independent contrasts. Early-generation hybrids were detected at contact zones spanning the range of genomic divergence included here. Despite this, we found that introgression is remarkably rare and, when observed, geographically restricted. Only the two most genomically similar population pairs showed introgression beyond 5 km of the contact zone. Introgression dropped precipitously at only modest levels of genomic divergence, beyond which it was absent or extremely low. Our results contrast with the growing number of studies indicating that introgression is prevalent among animals, suggesting that animal groups will vary considerably in their propensity for introgression.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"411-422"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142827748","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

Genome-wide differentiation by geography not species in taxonomically complex eyebrights (Euphrasia). 在地理上而非物种上的复杂眼亮的全基因组分化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-03-03 DOI: 10.1093/evolut/qpae185

Yanqian Ding, Chris Metherell, Wu Huang, Peter M Hollingsworth, Alex D Twyford

{"title":"Genome-wide differentiation by geography not species in taxonomically complex eyebrights (Euphrasia).","authors":"Yanqian Ding, Chris Metherell, Wu Huang, Peter M Hollingsworth, Alex D Twyford","doi":"10.1093/evolut/qpae185","DOIUrl":"10.1093/evolut/qpae185","url":null,"abstract":"Most studies investigating the genomic nature of species differences anticipate monophyletic species with genome-wide differentiation. However, this may not be the case at the earliest stages of speciation where reproductive isolation is weak and homogenizing gene flow blurs species boundaries. We investigate genomic differences between species in a postglacial radiation of eyebrights (Euphrasia), a taxonomically complex plant group with variation in ploidy and mating system. We use genotyping-by-sequencing and spatially aware clustering methods to investigate genetic structure across 378 populations from 18 British and Irish Euphrasia species. We find only northern Scottish populations of the selfing heathland specialist E. micrantha demonstrate genome-wide divergence from other species. Instead of genetic clusters corresponding to species, all other clusters align with geographic regions, such as a genetic cluster on Shetland that includes 10 tetraploid species. Recent divergence and extensive gene flow between putative species are supported by a lack of species-specific single-nucleotide polymorphisms or clear outlier loci. We anticipate a similar lack of association between genomic clusters and species identities may occur in other recent postglacial groups. Where new species emerge this is associated with a transition in mating system or novel ecological preferences.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"483-492"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142876688","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

Fluctuating selection among years in a wild insect.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-27 DOI: 10.1093/evolut/qpaf042

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

{"title":"Fluctuating selection among years in a wild insect.","authors":"Rolando Rodríguez-Muñoz, Paul Hopwood, Jon Slate, Craig Walling, Thomas M Houslay, Tom Tregenza","doi":"10.1093/evolut/qpaf042","DOIUrl":"https://doi.org/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 ten 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 ten discrete generations, 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 among 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":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-27","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

Allometry of sound reception structures and evidence for a mandibular middle ear in non-mammalian synapsids.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-24 DOI: 10.1093/evolut/qpaf041

Savannah L Olroyd, Bjørn T Kopperud

{"title":"Allometry of sound reception structures and evidence for a mandibular middle ear in non-mammalian synapsids.","authors":"Savannah L Olroyd, Bjørn T Kopperud","doi":"10.1093/evolut/qpaf041","DOIUrl":"https://doi.org/10.1093/evolut/qpaf041","url":null,"abstract":"The origin of sensory structures provides an excellent framework for studying how constraints and selective pressures affect the evolution of complex features. The evolution of the mammalian middle ear from the jaw hinge of non-mammalian synapsids offers a deep-time perspective on sensory evolution but is limited by a poor understanding of early synapsid hearing. This work tests the hypothesis that the size of the reflected lamina of the angular bone in non-mammalian synapsids followed a strict, negative allometric trend that may be expected for a sound receiver. Allometry is first investigated in the pterygoid bone of chameleons, which was co-opted for hearing in some species and represents a possible analog for the synapsid reflected lamina. Results indicate that chameleons with a pterygoid ear exhibit a similar allometric slope, while species without a pterygoid ear have variable slopes, suggesting an optimum allometric pattern in sound receivers. In the reflected lamina, we find reduced variation around the allometric trend in therocephalians and non-bidentalian anomodonts, and evolutionary modeling suggests constraint in these groups. These results are consistent with a mandibular middle ear in non-mammalian synapsids, adding valuable new insights to the hypothesis that selective pressures for hearing ability were present long before the evolution of the mammalian middle ear.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143482553","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

Anther modes influence diversification rates in the animal-pollinated species-rich Didymocarpoideae.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-22 DOI: 10.1093/evolut/qpaf038

Shao-Jun Ling, Xiao-Lan Yao, Wen-Qian Xiang, Ming-Xun Ren

{"title":"Anther modes influence diversification rates in the animal-pollinated species-rich Didymocarpoideae.","authors":"Shao-Jun Ling, Xiao-Lan Yao, Wen-Qian Xiang, Ming-Xun Ren","doi":"10.1093/evolut/qpaf038","DOIUrl":"https://doi.org/10.1093/evolut/qpaf038","url":null,"abstract":"Stamen traits significantly influence pollen presentation patterns and play a critical role in mating systems, floral evolution, and the diversification of angiosperms. Anthers within a flower can either develop freely or be united, resulting in three primary modes: separated anthers, synandry, and paired-united anthers. The impact of these anther modes on species diversification remains inadequately understood. In this study, we employed 14 plastid and nuclear ribosomal markers from 789 species to reconstruct the phylogenetic relationships of the Old World Didymocarpoideae, which are predominantly bee pollinated. We then investigated the evolutionary patterns of anther modes and assessed their potential role in species diversification. Our findings indicate that the evolution of anther modes and associated floral traits exhibited significant trait conservatism. Paired-united anthers likely represent the ancestral form of Didymocarpoideae, characterized by four fertile stamens with exserted locations for the anthers. Notably, derived synandry was associated with relatively high rates of species diversification, particularly in the species-rich Cyrtandra, Primulina, and Streptocarpus, which could be due to enhanced pollination precision facilitated by aggregations of anthers and pollen grains. This study elucidates the evolutionary transitions of different anther modes while highlighting their influence on diversification rates within Didymocarpoideae.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143476382","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 reveals trade-offs between sexual selection and heat tolerance in Drosophila prolongata.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-18 DOI: 10.1093/evolut/qpaf035

Alessio N De Nardo, Abhishek Meena, Komal Maggu, Benjamin Eggs, Sonja H Sbilordo, Stefan Lüpold

{"title":"Experimental evolution reveals trade-offs between sexual selection and heat tolerance in Drosophila prolongata.","authors":"Alessio N De Nardo, Abhishek Meena, Komal Maggu, Benjamin Eggs, Sonja H Sbilordo, Stefan Lüpold","doi":"10.1093/evolut/qpaf035","DOIUrl":"https://doi.org/10.1093/evolut/qpaf035","url":null,"abstract":"Sexual selection promotes traits that enhance mating or fertilization success, but these traits can be very costly under harsh environmental conditions. The extent to which differential investment in costly traits under varying intensities of sexual selection is related to their susceptibility to environmental stress remains unclear. This study explored how experimental evolution under different operational sex ratios (OSRs) shapes traits and reproductive success of male Drosophila prolongata, and how developmental and/or adult heat stress affect the expression of these traits. We found males from even and slightly male-biased OSRs to be larger and display greater reduction in body size under developmental heat stress, suggesting pre-mating sexual selection on body size and condition-dependent thermal sensitivity. These populations also exhibited consistently high mating and fertilization success across temperatures, potentially indicating selection for robust phenotypes with 'good genes' that perform well regardless of temperature. Conversely, males from strongly male-biased OSR populations experienced more pronounced decline in sperm competitiveness following exposure to developmental or adult heat stress. These results highlight how environmental stressors differentially impact populations, shaped by varying strengths of pre- and post-mating sexual selection. These observed patterns suggest potential interactions between past selection and the ability to adapt to changing environments.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143448674","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