Evolution最新文献_第8页

Feather Evolution Following Flight Loss In Crown Group Birds: Relaxed Selection And Developmental Constraints.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-03 DOI: 10.1093/evolut/qpaf020

Evan T Saitta, Lilja Carden, Jonathan S Mitchell, Peter J Makovicky

{"title":"Feather Evolution Following Flight Loss In Crown Group Birds: Relaxed Selection And Developmental Constraints.","authors":"Evan T Saitta, Lilja Carden, Jonathan S Mitchell, Peter J Makovicky","doi":"10.1093/evolut/qpaf020","DOIUrl":"https://doi.org/10.1093/evolut/qpaf020","url":null,"abstract":"Feathers are complex structures exhibiting structural/functional disparity across species and plumage. Flight was lost in >30 extant lineages from ~79.58 Ma-15 Ka. Effects of flight loss on senses, neuroanatomy, and skeletomusculature are known. To study how flightlessness affects feathers, we measured 11 feather metrics across the plumage of 30 flightless taxa and their phylogenetically closest volant taxa, with broader sampling of primaries across all orders of crown birds. Our sample includes 27 independent flight losses, representing nearly half of extant flightless species. Feather asymmetry measured by barb angle differences between trailing and leading vanes decreases in flightless lineages, most prominently in flight feathers and weakest in contour feathers. Greatest changes in feather anatomy occur in older flightless lineages (penguins, ratites). Comparative methods show some microscopic feather traits are not dramatically modified after flightlessness compared to body mass increase and relative wing and tail fan reduction, but changes toward greater symmetry are stronger. Relaxing selection for flight does not rapidly modify feather flight adaptations, apart from asymmetry. Feathers of recently flightless lineages resemble their volant relatives. Developmental constraints and relaxed selection for novel feather morphologies may explain some observed changes. Macroscopic changes to flight apparati (skeletomusculature, airfoil size) are more evident in recently flightless taxa and could more reliably detect flightlessness in fossils, with increased feather symmetry as a potential microscopic signal. We observed apical modification in later stages of feather development (asymmetric displacement of barb loci), while morphologies arising during early developmental stages are only altered after millions of years of flightlessness.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143079083","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

Correction to: Allometric scaling of somatic mutation and epimutation rates in trees. 校正：树木体细胞突变和增殖速率的异速缩放。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-03 DOI: 10.1093/evolut/qpae173

引用次数: 0

Weak integration allows novel fin shapes and spurs locomotor diversity in reef fishes. 弱整合允许珊瑚礁鱼类形成新颖的鳍形，并刺激其运动多样性。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-03 DOI: 10.1093/evolut/qpae165

Darien R Satterfield, Bernice Yin, Sky Jung, Samantha Hodges-Lisk, Dylan K Wainwright, Michael D Burns, Peter C Wainwright

{"title":"Weak integration allows novel fin shapes and spurs locomotor diversity in reef fishes.","authors":"Darien R Satterfield, Bernice Yin, Sky Jung, Samantha Hodges-Lisk, Dylan K Wainwright, Michael D Burns, Peter C Wainwright","doi":"10.1093/evolut/qpae165","DOIUrl":"10.1093/evolut/qpae165","url":null,"abstract":"In functional systems composed of many traits, selection for specialized function can induce trait evolution by acting directly on individual components within the system, or indirectly through networks of trait integration. However, strong integration can also hinder diversification into regions of trait space that are not aligned with axes of covariation among traits. Thus, non-independence among traits may limit functional expansion. We explore this dynamic in the evolution of fin shapes in 106 species from 38 families of coral reef fishes, a polyphyletic assemblage that shows exceptional diversity in locomotor function. Despite expectations of a strong match between form and function, we find subtantial fin shape disparity across species that share a swimming mode. The evolution of fin shape is weakly integrated across the four functionally dominant fins in swimming and integration is weakened as derived swimming modes evolve. The weak integration among fins in the ancestral locomotor condition provides a primary axis of diversification while allowing for off-axis diversification via independent trait responses to selection. However, the evolution of novel locomotor modes coincides with a loss of integration among fins. Our study highlights the need for additional work on the functional consequences of fin shape in fishes.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"261-279"},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667148","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

The evolution of reproductive leaf dimorphism in two globally distributed fern families is neither stepwise nor irreversible, unless further specialization evolves. 在两个全球分布的蕨类植物科中，生殖叶二形性的进化既不是逐步的，也不是不可逆转的，除非出现进一步的特化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-02-03 DOI: 10.1093/evolut/qpae159

Jacob S Suissa, Makaleh Smith

{"title":"The evolution of reproductive leaf dimorphism in two globally distributed fern families is neither stepwise nor irreversible, unless further specialization evolves.","authors":"Jacob S Suissa, Makaleh Smith","doi":"10.1093/evolut/qpae159","DOIUrl":"10.1093/evolut/qpae159","url":null,"abstract":"A contemporary interpretation of Dollo's Law states that the evolution of a specialized structure is irreversible. Among land plants, reproductive specialization shows a trend toward increasing complexity without reversion, raising questions about evolutionary steps and the irreversibility of reproductive complexity. Ferns exhibit varied reproductive strategies; some are dimorphic (producing separate leaves for photosynthesis and reproduction), while others are monomorphic (where one leaf is used for both photosynthesis and spore dispersal). This diversity provides an opportunity to examine the applicability of Dollo's Law in the evolution of reproductive leaf specialization. We analyzed 118 species in Blechnaceae and Onocleaceae, applying quantitative morphometrics and phylogenetic comparative methods to test the pillars of a modernized interpretation of Dollo's Law. The evolution of dimorphism in Blechnaceae is neither stepwise nor irreversible, with direct transitions from monomorphism to dimorphism, including several reversions. In contrast, Onocleaceae exhibits an irreversibility to monomorphism only upon further specialization of fertile leaves for humidity-driven spore dispersal; this suggests that additional specialization, not dimorphism alone, may facilitate irreversibility. These results provide insight into the canalization of fertile-sterile leaf dimorphism in seed plants, where the addition of traits like heterospory and integuments lead to further specialization and potential irreversibility. These findings suggest that as new specialized traits evolve alongside preexisting ones, reversion may become increasingly unlikely.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"164-175"},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564173","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

Costly traits in a dynamic world: trait responses to fine-scale varying environment differ according to selection pressures in a tropical lizard.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-30 DOI: 10.1093/evolut/qpaf018

Gokul Valiya Parambil, Kavita Isvaran

{"title":"Costly traits in a dynamic world: trait responses to fine-scale varying environment differ according to selection pressures in a tropical lizard.","authors":"Gokul Valiya Parambil, Kavita Isvaran","doi":"10.1093/evolut/qpaf018","DOIUrl":"https://doi.org/10.1093/evolut/qpaf018","url":null,"abstract":"Under current climate change patterns, rapidly changing environments can impose strong selection on traits. Costly traits that require heavy investment and strongly affect fitness may be particularly vulnerable to such changes. Despite organisms experiencing dynamic environments, our knowledge of costly trait response is limited as longitudinal studies across generations are rare. Using a long-term 11-generation dataset, we examined how fine-scale spatial and temporal variation in ecological and demographic conditions modify costly traits, specifically positive allometry in morphological traits under different selection pressures, in Psammophilus dorsalis, a short-lived socially polygynous lizard. We comprehensively measured males and females across non-overlapping generations and space and quantified fine-scale variation in key ecological and demographic parameters. Positive allometry in male head width (under sexual selection) varied dramatically over generations and space. Limited rainfall, harsh temperatures, and greater competition promoted positive allometry in male head width. In stark contrast, positive allometry in female interlimb length (under fecundity selection) only weakly correlated with environmental conditions. We demonstrate that costly traits are sensitive to changing environments depending on the underlying selection pressure, with sexually selected traits showing larger effects in tropical lizards. Future climatic predictions, indicating accelerated warming and altered rainfall, can strongly impact phenotypes in tropical lizards.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143064835","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

Comparative functional analyses of the prostate-specific KLK3 enzyme in primates reveals the impact of sexual selection.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-29 DOI: 10.1093/evolut/qpaf012

Emine F Kahveci, Amanda M Colvin Zielen, William J Gibbs, Clancy A McIntyre, Raahi Modi, Hannah Z Johnstonbaugh, Thomas H Washington Iv, David R Brown V, Megan R Hockman, Neil R Rossman, Michael I Jensen-Seaman

{"title":"Comparative functional analyses of the prostate-specific KLK3 enzyme in primates reveals the impact of sexual selection.","authors":"Emine F Kahveci, Amanda M Colvin Zielen, William J Gibbs, Clancy A McIntyre, Raahi Modi, Hannah Z Johnstonbaugh, Thomas H Washington Iv, David R Brown V, Megan R Hockman, Neil R Rossman, Michael I Jensen-Seaman","doi":"10.1093/evolut/qpaf012","DOIUrl":"https://doi.org/10.1093/evolut/qpaf012","url":null,"abstract":"Male reproductive proteins frequently evolve rapidly in animals, potentially due to adaptive evolution driven by sperm competition, polyspermy avoidance, or pathogen defense. Alternatively, elevated rates of protein change may be due to relaxed constraint. The prostate-specific protease KLK3 has experienced dynamic evolution since its origin stemming from a gene duplication in the ancestor of all Old World primates, with instances of rapid evolution, stasis, and pseudogenization. As we demonstrate with functional assays using recombinant proteins, these changes have resulted in a chimpanzee KLK3 ortholog with greater enzyme velocity and higher efficiency than other apes, including humans. Reduced enzyme efficiency was observed in gorillas and gibbons who both possess a chimeric KLK2/KLK3 enzyme resulting from independent genomic deletions. The relative efficiency of KLK3 homologs among these species correlates well with their presumed levels of sperm competition. Furthermore, the reconstructed protein of the human-chimpanzee last common ancestor has enzyme kinetics identical to modern humans, suggesting that the observed functional differences between humans and chimpanzees are derived in the latter, and allowing us to tentatively speculate that their common ancestor did not possess a polygynandrous mating system similar to modern chimpanzees.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143058635","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

Craniofacial modularity and the evolution of cranial kinesis in the adaptive radiation of Furnariidae (Aves: Passeriformes).

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-29 DOI: 10.1093/evolut/qpaf013

Manuel I Stefanini, Pablo S Milla Carmona, Valentina Gómez-Bahamón, Nicolás Mongiardino Koch, Ignacio M Soto, Raúl O Gómez, Kristof Zyskowski, Claudia P Tambussi

{"title":"Craniofacial modularity and the evolution of cranial kinesis in the adaptive radiation of Furnariidae (Aves: Passeriformes).","authors":"Manuel I Stefanini, Pablo S Milla Carmona, Valentina Gómez-Bahamón, Nicolás Mongiardino Koch, Ignacio M Soto, Raúl O Gómez, Kristof Zyskowski, Claudia P Tambussi","doi":"10.1093/evolut/qpaf013","DOIUrl":"https://doi.org/10.1093/evolut/qpaf013","url":null,"abstract":"The role of phenotypic modularity in the evolution of skull morphology in birds has been a subject of debate in recent years. Furnariids (ovenbirds and woodcreepers), a spectacular avian adaptive radiation, are distinguished in their cranial morphology as the only passerines with two types of cranial kinesis, constituting a great model to test whether the evolution of novelties linked to kinesis was associated with shifts in patterns of evolutionary modularity and allometry in the avian skull. Our analyses by means of geometric morphometric tools and phylogenetic comparative methods show that the beak and neurocranium of furnariids evolved in a modular fashion and shaped by the cranial kinesis evolution. Besides, species with prokinesis show a higher degree of modularity and morphological disparity, lower phenotypic rates, as well as higher contribution of allometry in the evolution of the beak morphology than species with proximal rhynchokinesis, suggesting, as observed in several vertebrates, that the functional demands associated with higher degrees of cranial kinesis promoted rapid integration throughout the skull. Prokinetic - robust morphotypes and proximal rhynchokinetic - gracile morphotypes, have repeatedly evolved by evolutionary convergence in both modules, which suggests the existence of functional trade-offs and long-standing adaptive optima related to cranial kinesis.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143058636","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

The Influence of Temperature on Courtship and Mate Choice in a Wolf Spider: Implications for Mating Success in Variable Environments.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-28 DOI: 10.1093/evolut/qpaf015

Malcolm F Rosenthal, Damian O Elias

{"title":"The Influence of Temperature on Courtship and Mate Choice in a Wolf Spider: Implications for Mating Success in Variable Environments.","authors":"Malcolm F Rosenthal, Damian O Elias","doi":"10.1093/evolut/qpaf015","DOIUrl":"https://doi.org/10.1093/evolut/qpaf015","url":null,"abstract":"Selection on animal signal form often changes significantly with the environment, yet signal form may itself be environment dependent. Little is known about how variation in individual responses to changing environments affects the relationship between selection and the subsequent evolution of signal traits. To address this question, we assess the effects of variation in temperature on individual signaling and mating behavior responses across temperatures in the wolf spider Schizocosa floridana. By running repeated-measures trials, we find that temperature has predictable effects on signal form, but that the performance of individual courters is not consistent across temperatures. Traits associated with courtship rate generally increase at higher temperatures but inter-individual consistency in response to temperature change is low, despite consistent female preferences for increased courtship rate at all temperatures. Interestingly, production of the likely most recently evolved signal component, the chirp, is consistent within signalers and predicts male performance across temperatures. Despite this, female preferences for chirp duration appear only at higher temperatures. Taken together, our results suggest that individual courter responses to changing temperatures have the potential to dampen or eliminate patterns of selection that are evident across temperatures. We discuss these results in the light of current research on mating behavior and sexual selection.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052019","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

Comparing the hermaphroditic mating system of a parasitic flatworm between populations with an ancestral, 3-host life cycle and a derived, facultative-precocious life cycle.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-28 DOI: 10.1093/evolut/qpaf016

Jenna M Hulke, Charles D Criscione

{"title":"Comparing the hermaphroditic mating system of a parasitic flatworm between populations with an ancestral, 3-host life cycle and a derived, facultative-precocious life cycle.","authors":"Jenna M Hulke, Charles D Criscione","doi":"10.1093/evolut/qpaf016","DOIUrl":"https://doi.org/10.1093/evolut/qpaf016","url":null,"abstract":"Evolutionary changes in development and/or host number of parasite life cycles can have subsequent ecological and evolutionary consequences for parasites. One theoretical model based on the mating systems of hermaphroditic parasites assumes a life cycle with fewer hosts will result in more inbreeding, and predicts a truncated life cycle most likely evolves in the absence of inbreeding depression. Many populations of the hermaphroditic trematode Alloglossidium progeneticum maintain an ancestral obligate 3-host life cycle where obligate sexual reproduction occurs among adults in catfish third hosts. However, some populations have evolved a facultative precocious life cycle, where sexual development can occur while encysted within crayfish second hosts, likely leading to high inbreeding as individuals are forced to self-mate while encysted. Whether selfing represents a derived state remains untested. We compared selfing rates of 5 precocious populations to that of 4 populations with an ancestral obligate 3-host life cycle. We also compared demographic estimates to genetic estimates of selfing to test the prediction of no inbreeding depression in precocious populations. Results showed that while the ancestral obligate 3-host life cycle is associated with high outcrossing rates, the facultative precocious populations are highly selfing and show little evidence for inbreeding depression.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052005","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

On the origin of an insular hybrid butterfly lineage.

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2025-01-27 DOI: 10.1093/evolut/qpaf017

Jesper Boman, Zachary J Nolen, Niclas Backström

{"title":"On the origin of an insular hybrid butterfly lineage.","authors":"Jesper Boman, Zachary J Nolen, Niclas Backström","doi":"10.1093/evolut/qpaf017","DOIUrl":"https://doi.org/10.1093/evolut/qpaf017","url":null,"abstract":"A new species can form through hybridization between species. Hybrid speciation in animals has been intensely debated, partly because hard evidence for the process has been difficult to obtain. Here we report the discovery of a European hybrid butterfly lineage, a finding that can be considered surprising given the intense and long-term study of European butterflies. The lineage we describe is mainly inhabiting an island in the Baltic Sea and was previously designated as a subspecies (horkei) of one of the parental species (Aricia artaxerxes). By analysing whole-genome resequencing data and developing a novel cluster analysis based on historical recombination events (Fisher junctions), we determine that horkei originated by hybridization between the non-sister species A. artaxerxes and A. agestis. This hybridization event occurred approximately 54,000 years ago, predating the last glaciation of the current distribution range. Horkei must therefore have persisted long enough to be able to colonize its current range, despite that this area lies between the current distributions of the parental species. The hybrid origin, the maintenance of genomic integrity across times of dramatic climate change and the expression of a combination of parental traits suggest that horkei could be in the process of hybrid speciation.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052008","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