Evolution最新文献_第10页

Diverging evolutionary trajectories for palm seed sizes in mainland Africa and Madagascar.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-26 DOI: 10.1093/evolut/qpaf010

Karen V Pham, Lee Hsiang Liow, Sarah J Ivory

{"title":"Diverging evolutionary trajectories for palm seed sizes in mainland Africa and Madagascar.","authors":"Karen V Pham, Lee Hsiang Liow, Sarah J Ivory","doi":"10.1093/evolut/qpaf010","DOIUrl":"https://doi.org/10.1093/evolut/qpaf010","url":null,"abstract":"Seed size is a trait which determines survival rates for individual plants and can vary as a result of numerous trade-offs. In the palm family (Arecaceae) today, there is great variation in seed sizes. Past studies attempting to establish drivers for palm seed evolution have sometimes yielded contradictory findings in part because modern seed size variations are complicated by long-term legacies, including biogeographic differences across lineages. Here, we examined palm seed size evolution in two adjacent regions (mainland Africa and Madagascar) utilizing single- and multi-regime Brownian Motion and Ornstein-Uhlenbeck processes. We explicitly take into account species' evolutionary histories to investigate whether there may be shared evolutionary pressures over regional scales. We found that regional selection pressures do exist for palm seed lengths, but these pressures are distinct in mainland Africa and Madagascar, despite the two regions' proximity. Our study indicates that evolutionary drivers may differ in these two regions, highlighting the importance of re-considering the widespread assumption to view mainland Africa and Madagascar as a single evolutionary region.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143037725","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: Evolution of dragline silk in araneids show super tensile performance in web-building and non-web-building spiders. 摘要：蛛形纲纲动物拖丝的进化在造网蜘蛛和不造网蜘蛛中显示出超强的拉伸性能。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-13 DOI: 10.1093/evolut/qpaf002

Snata Chakraborty

引用次数: 0

Beyond Peto's paradox: expanding the study of cancer resistance across species. 超越佩托悖论：拓展跨物种抗癌研究。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae158

Antoine M Dujon, Amy M Boddy, Rodrigo Hamede, Beata Ujvari, Frédéric Thomas

{"title":"Beyond Peto's paradox: expanding the study of cancer resistance across species.","authors":"Antoine M Dujon, Amy M Boddy, Rodrigo Hamede, Beata Ujvari, Frédéric Thomas","doi":"10.1093/evolut/qpae158","DOIUrl":"10.1093/evolut/qpae158","url":null,"abstract":"Peto's paradox, which highlights the lower-than-expected cancer rates in larger and/or longer-lived species, is a cornerstone of discussions at the intersection of ecology, evolution, and cancer research. It prompts investigations into how species with traits that theoretically increase cancer risk manage to exhibit cancer resistance, with the ultimate goal of uncovering novel therapies for humans. Building on these foundational insights, we propose expanding the research focus to species that, despite possessing traits beyond size and longevity that theoretically increase their cancer risk, exhibit unexpected cancer resistance. Testing Peto's paradox without interference from transient dynamics also requires considering species that are at an equilibrium between cancer risks and defenses, which is increasingly challenging due to anthropogenic activities. Additionally, we argue that transmissible cancers could significantly help in understanding how the metastatic process might be naturally suppressed. This research perspective is timely and aims to support the continued and in-depth identification of anti-cancer adaptations retained throughout evolution in the animal kingdom.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"6-10"},"PeriodicalIF":3.1,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142568243","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 and functional implications of stinger shape in ants. 蚂蚁毒刺形状的进化和功能影响。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae142

Alexandre Casadei-Ferreira, Gabriela Procópio Camacho, Thomas van de Kamp, John E Lattke, Rodrigo Machado Feitosa, Evan P Economo

{"title":"Evolution and functional implications of stinger shape in ants.","authors":"Alexandre Casadei-Ferreira, Gabriela Procópio Camacho, Thomas van de Kamp, John E Lattke, Rodrigo Machado Feitosa, Evan P Economo","doi":"10.1093/evolut/qpae142","DOIUrl":"10.1093/evolut/qpae142","url":null,"abstract":"Trait diversification is often driven by underlying performance tradeoffs in the context of different selective pressures. Evolutionary changes in task specialization may influence how species respond to tradeoffs and alter diversification. We conducted this study to investigate the functional morphology, evolutionary history, and tempo and mode of evolution of the Hymenoptera stinger using Ectatomminae ants as a model clade. We hypothesized that a performance tradeoff surface underlies the diversity of stinger morphology and that shifts between predatory and omnivorous diets mediate the diversification dynamics of the trait. Shape variation was characterized by X-ray microtomography, and the correlation between shape and average values of von Mises stress, as a measure of yield failure criteria under loading conditions typical of puncture scenarios, was determined using finite element analysis. We observed that stinger elongation underlies most of the shape variation but found no evidence of biomechanical tradeoffs in the performance characteristics measured. In addition, omnivores have increased phenotypic shifts and accelerated evolution in performance metrics, suggesting the evolution of dietary flexibility releases selection pressure on a specific function, resulting in a greater phenotypic evolutionary rate. These results increase our understanding of the biomechanical basis of stinger shape, indicate that shape diversity is not the outcome of simple biomechanical optimization, and reveal connections between diet and trait diversification.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"80-99"},"PeriodicalIF":3.1,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375348","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

Allometric scaling of somatic mutation and epimutation rates in trees. 树木中体细胞突变率和表观突变率的异速缩放。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae150

Frank Johannes

引用次数: 0

Sperm competition intensity shapes divergence in both sperm morphology and reproductive genes across murine rodents. 精子竞争强度决定了啮齿类动物精子形态和生殖基因的差异。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae146

Emily E K Kopania, Gregg W C Thomas, Carl R Hutter, Sebastian M E Mortimer, Colin M Callahan, Emily Roycroft, Anang S Achmadi, William G Breed, Nathan L Clark, Jacob A Esselstyn, Kevin C Rowe, Jeffrey M Good

{"title":"Sperm competition intensity shapes divergence in both sperm morphology and reproductive genes across murine rodents.","authors":"Emily E K Kopania, Gregg W C Thomas, Carl R Hutter, Sebastian M E Mortimer, Colin M Callahan, Emily Roycroft, Anang S Achmadi, William G Breed, Nathan L Clark, Jacob A Esselstyn, Kevin C Rowe, Jeffrey M Good","doi":"10.1093/evolut/qpae146","DOIUrl":"10.1093/evolut/qpae146","url":null,"abstract":"It remains unclear how variation in the intensity of sperm competition shapes phenotypic and molecular evolution across clades. Mice and rats in the subfamily Murinae are a rapid radiation exhibiting incredible diversity in sperm morphology and production. We combined phenotypic and genomic data to perform phylogenetic comparisons of male reproductive traits and genes across 78 murine species. We identified several shifts towards smaller relative testes mass (RTM), presumably reflecting reduced sperm competition. Several sperm traits were associated with RTM, suggesting that mating system evolution selects for convergent suites of traits related to sperm competitive ability. We predicted that sperm competition would also drive more rapid molecular divergence in species with large testes. Contrary to this, we found that many spermatogenesis genes evolved more rapidly in species with smaller RTM due to relaxed purifying selection. While some reproductive genes evolved rapidly under recurrent positive selection, relaxed selection played a greater role in underlying rapid evolution in small testes species. Our work demonstrates that postcopulatory sexual selection can impose strong purifying selection shaping the evolution of male reproduction and that broad patterns of molecular evolution may help identify genes that contribute to male fertility.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"11-27"},"PeriodicalIF":3.1,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11663510/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406287","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

Contrasting macroevolutionary patterns in pelagic tetrapods across the Triassic-Jurassic transition. 三叠纪-侏罗纪过渡时期浮游四足动物的宏观进化模式对比。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae138

Antoine Laboury, Thomas L Stubbs, Andrzej S Wolniewicz, Jun Liu, Torsten M Scheyer, Marc E H Jones, Valentin Fischer

{"title":"Contrasting macroevolutionary patterns in pelagic tetrapods across the Triassic-Jurassic transition.","authors":"Antoine Laboury, Thomas L Stubbs, Andrzej S Wolniewicz, Jun Liu, Torsten M Scheyer, Marc E H Jones, Valentin Fischer","doi":"10.1093/evolut/qpae138","DOIUrl":"10.1093/evolut/qpae138","url":null,"abstract":"The iconic marine raptorial predators Ichthyosauria and Eosauropterygia co-existed in the same ecosystems throughout most of the Mesozoic Era, facing similar evolutionary pressures and environmental perturbations. Both groups seemingly went through a massive macroevolutionary bottleneck across the Triassic-Jurassic (T/J) transition that greatly reduced their morphological diversity, leaving pelagic lineages as the only survivors. However, analyses of marine reptile disparity across the T/J transition have usually employed coarse morphological and temporal data. We comprehensively compare the evolution of ichthyosaurian and eosauropterygian morphology and body size across the Middle Triassic to Early Jurassic interval and find contrasting macroevolutionary patterns. The ecomorphospace of eosauropterygians predominantly reflects a strong phylogenetic signal, resulting in the clustering of three clades with clearly distinct craniodental phenotypes, suggesting \"leaps\" toward novel feeding ecologies. Ichthyosaurian diversification lacks a discernible evolutionary trend, as we find evidence for a wide overlap of craniodental morphologies between Triassic and Early Jurassic forms. The temporal evolution of ecomorphological disparity, fin shape and body size of eosauropterygians and ichthyosaurians during the Late Triassic does not support the hypothesis of an abrupt macroevolutionary bottleneck near the T/J transition. Rather, an important turnover event should be sought earlier, during times of rapid sea level falls.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"38-50"},"PeriodicalIF":3.1,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282504","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

Does brain size of Asiatic toads (Bufo gargarizans) trade-off with other energetically expensive organs along altitudinal gradients? 亚洲蟾蜍（Bufo gargarizans）的脑容量是否会在海拔梯度上与其他耗能器官进行权衡？

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae137

Zhongyi Yao, Kun Huang, Yin Qi, Jinzhong Fu

{"title":"Does brain size of Asiatic toads (Bufo gargarizans) trade-off with other energetically expensive organs along altitudinal gradients?","authors":"Zhongyi Yao, Kun Huang, Yin Qi, Jinzhong Fu","doi":"10.1093/evolut/qpae137","DOIUrl":"10.1093/evolut/qpae137","url":null,"abstract":"Brain size variation is often attributed to energetic trade-offs with other metabolically expensive tissues and organs, which is a prediction of the expensive brain hypothesis (EBH). Here we examine Asiatic toads (Bufo gargarizans) along altitudinal gradients and test size trade-offs between the brain and four visceral organs (heart, liver, alimentary tract, and kidney) with altitude. Body size and scaled mass index (a proxy for total energy intake) decline with altitude, implying stronger energetic constraints at high altitudes. Relative brain size decreases along altitudinal gradients, while visceral organs mostly increase in relative sizes. Using structural equation modeling, a significant negative relationship between brain size and a latent variable \"budget,\" which represents the energy allocation to the four visceral organs, is detected among high-altitudinal toads. Heart appears to have the largest and most consistent response to changes in energy allocation. No such relationships are observed among toads at middle- and low-altitudes, where high energy intake may allow individuals to forego energetic trade-offs. When applying EBH to poikilotherms, a great emphasis should be placed on total energy intake in addition to energy allocation. Future research on EBH will benefit from more intra-specific comparisons and the evaluation of fitness consequences beyond energy limitation.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"28-37"},"PeriodicalIF":3.1,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282505","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

Sperm as a speciation phenotype in promiscuous songbirds. 精子是滥交鸣禽的物种变异表型。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae154

Jan T Lifjeld, Emily R A Cramer, Erica H Leder, Kjetil Lysne Voje

{"title":"Sperm as a speciation phenotype in promiscuous songbirds.","authors":"Jan T Lifjeld, Emily R A Cramer, Erica H Leder, Kjetil Lysne Voje","doi":"10.1093/evolut/qpae154","DOIUrl":"10.1093/evolut/qpae154","url":null,"abstract":"Sperm morphology varies considerably among species. Sperm traits may contribute to speciation if they diverge fast in allopatry and cause conspecific sperm precedence upon secondary contact. However, their role in driving prezygotic isolation has been poorly investigated. Here we test the hypothesis that, early in the speciation process, female promiscuity promotes a reduction in overlap in sperm length distributions among songbird populations. We assembled a data set of 20 pairs of populations with known sperm length distributions, a published estimate of divergence time, and an index of female promiscuity derived from extrapair paternity rates or relative testis size. We found that sperm length distributions diverged more rapidly in more promiscuous species. Faster divergence between sperm length distributions was caused by the lower variance in the trait in more promiscuous species, and not by faster divergence of the mean sperm lengths. The reduced variance is presumably due to stronger stabilizing selection on sperm length mediated by sperm competition. If divergent sperm length optima in allopatry causes conspecific sperm precedence in sympatry, which remains to be shown empirically, female promiscuity may promote prezygotic isolation, and rapid speciation in songbirds.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"134-143"},"PeriodicalIF":3.1,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142557429","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: Scarce pollen resources and asymmetric reproductive isolation. 文摘：稀缺的花粉资源和不对称的生殖隔离。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-22 DOI: 10.1093/evolut/qpae156

Karin Gross

引用次数: 0