EvolutionPub Date : 2025-04-02DOI: 10.1093/evolut/qpaf006
Laura Schat, Marian Schubert, Siri Fjellheim, Aelys M Humphreys
{"title":"Drought tolerance as an evolutionary precursor to frost and winter tolerance in grasses.","authors":"Laura Schat, Marian Schubert, Siri Fjellheim, Aelys M Humphreys","doi":"10.1093/evolut/qpaf006","DOIUrl":"10.1093/evolut/qpaf006","url":null,"abstract":"<p><p>Accumulating evidence is suggesting more frequent tropical-to-temperate transitions than previously thought. This raises the possibility that biome transitions could be facilitated by precursor traits. A wealth of ecological, genetic, and physiological evidence suggests overlap between drought and frost stress responses, but the origin of this overlap, i.e., the evolution of these responses relative to each other, is poorly known. Here, we test whether adaptation to frost and/or severe winters in grasses (Poaceae) was facilitated by ancestral adaptation to drought. We used occurrence patterns across Köppen-Geiger climate zones to classify species as drought, frost, and/or winter tolerant, followed by comparative analyses. Ancestral state reconstructions revealed different evolutionary trajectories in different clades, suggesting both drought-first and frost-first scenarios. Explicit simultaneous modelling of drought and frost/winter tolerance provided some support for correlated evolution, but suggested higher rates of gain of frost/winter tolerance in drought-sensitive rather than drought-tolerant lineages. Overall, there is limited support across grasses as a whole that drought tolerance acted as an evolutionary precursor to frost or severe winter tolerance. Different scenarios in different clades is consistent with present-day grasses being either cold or drought specialists, possibly as a consequence of trade-offs between different stress tolerance responses.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"541-556"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002664","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}
EvolutionPub Date : 2025-04-02DOI: 10.1093/evolut/qpaf034
{"title":"Correction to: Is Mendelism wrong?","authors":"","doi":"10.1093/evolut/qpaf034","DOIUrl":"10.1093/evolut/qpaf034","url":null,"abstract":"","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"680"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143472231","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}
EvolutionPub Date : 2025-04-02DOI: 10.1093/evolut/qpaf014
Sylvia M Durkin, Michael W Nachman
{"title":"Intraspecific gene regulation in cis- and trans.","authors":"Sylvia M Durkin, Michael W Nachman","doi":"10.1093/evolut/qpaf014","DOIUrl":"10.1093/evolut/qpaf014","url":null,"abstract":"<p><p>Changes in gene expression underlie much of evolution and occur via either cis-acting mutations, which lie near the affected gene and act in a context-specific manner, or trans-acting mutations, which may be far from the affected gene and act through diffusible molecules such as transcription factors. A commonly held view is that most expression variation within species is controlled in trans- while expression differences between species are largely controlled in cis-. Here, we summarize recent intraspecific gene regulation studies and find, contrary to this widely held view, that many studies in diverse taxa have revealed a large role for cis-acting mutations underlying expression variation within species. A review of the existing literature also shows that preparations using whole organisms rather than individual tissues may be biased toward identifying trans-regulation. Moreover, we note several examples of predominantly cis-acting regulation in recently diverged populations adapted to different environments. We highlight the challenges of drawing general conclusions from comparisons among studies that use different methodologies and we offer suggestions for studies that will address outstanding questions concerning the evolution of gene regulation.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"499-509"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11965609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143046100","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}
EvolutionPub Date : 2025-04-02DOI: 10.1093/evolut/qpae186
M Inam Jameel, Lisa Duncan, Kailen Mooney, Jill T Anderson
{"title":"Herbivory and water availability interact to shape the adaptive landscape in the perennial forb, Boechera stricta.","authors":"M Inam Jameel, Lisa Duncan, Kailen Mooney, Jill T Anderson","doi":"10.1093/evolut/qpae186","DOIUrl":"10.1093/evolut/qpae186","url":null,"abstract":"<p><p>Abiotic and biotic factors interact to influence phenotypic evolution; however, identifying the causal agents of selection that drive the evolution and expression of traits remains challenging. In a field common garden, we manipulated water availability and herbivore abundance across 3 years, and evaluated clinal variation in functional traits and phenology, phenotypic plasticity, local adaptation, and selection using diverse accessions of the perennial forb, Boechera stricta. Consistent with expectations, drought stress exacerbated damage from herbivores. We found significant plasticity and genetic clines in foliar and phenological traits. Water availability and herbivory interacted to exert selection, even on traits like flowering duration, which showed no clinal variation. Furthermore, the direction of selection on specific leaf area in response to water availability mirrored the genetic cline and plasticity, suggesting that variation in water levels across the landscape influences the evolution of this trait. Finally, both herbivory and water availability likely contribute to local adaptation. This work emphasizes the additive and synergistic roles of abiotic and biotic factors in shaping phenotypic variation across environmental gradients.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"557-573"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11965616/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142876689","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}
EvolutionPub Date : 2025-04-02DOI: 10.1093/evolut/qpaf007
Alicia Valdés, Vigdís F Helmutsdóttir, Bryndís Marteinsdóttir, Johan Ehrlén
{"title":"Small-scale genetic differentiation in mean flowering time, but not in plasticity, along a geothermal heating gradient.","authors":"Alicia Valdés, Vigdís F Helmutsdóttir, Bryndís Marteinsdóttir, Johan Ehrlén","doi":"10.1093/evolut/qpaf007","DOIUrl":"10.1093/evolut/qpaf007","url":null,"abstract":"<p><p>Genetic differentiation in traits is assumed to frequently occur in response to divergent natural selection. For example, developmental traits might respond to differences in climate. However, little is known about when and at which spatial scales environmental differences lead to genetic differentiation, and to what extent there is genetic differentiation also in trait plasticity. Using a crossing design and a greenhouse heating experiment, we investigated genetic differentiation in thermal sensitivity of flowering time in a perennial herb along small-scale gradients in geothermal soil heating in Iceland. We found additive genetic variation in both flowering time and thermal plasticity of flowering time. Genetic differentiation in the median flowering date of individuals showed a counter-gradient pattern; flowering being earlier at higher greenhouse temperatures, while at a given temperature individuals originating from warmer soils flowered later than individuals from colder soils. We found no corresponding pattern for plasticity, suggesting that genetic differentiation in phenology in response to soil heating has occurred through changes in trait means rather than in plasticity. Findings such as these identifying genetic trait differentiation along an environmental gradient are key to understand how environmental variation can drive the process of local adaptation, and to predict responses to future environmental changes.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"586-596"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002672","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}
EvolutionPub Date : 2025-04-02DOI: 10.1093/evolut/qpaf004
Wade A Boys, Tara L Lanzer, Taylor S Ping, Adam M Siepielski
{"title":"Predators drive selection for adaptive plasticity in prey defense behavior.","authors":"Wade A Boys, Tara L Lanzer, Taylor S Ping, Adam M Siepielski","doi":"10.1093/evolut/qpaf004","DOIUrl":"10.1093/evolut/qpaf004","url":null,"abstract":"<p><p>Plasticity to reduce activity is a common way prey evade predators. However, by reducing activity prey often experience lower individual growth rates because they encounter their own prey less often. To overcome this cost, natural selection should not simply favor individuals generating stronger plasticity to reduce activity rates but also selection to resume activity once the threat of predation subsides. If such plasticity is adaptive, it should vary under environmental conditions that generate stronger selection for greater plasticity, such as predator density. Using a mesocosm experiment and observational study with a damselfly-prey/fish-predator system, we show that fish predation exerts selection for greater plasticity in activity rates of damselflies. Such selection allows damselfly activity levels to initially decrease and then rebound when the threat of predation dissipates, potentially helping to ameliorate a hypothesized growth penalty from activity reductions. We also find that the extent of plasticity in activity to the threat of fish predation increases, albeit slightly (r2 = 0.04%-0.063%), as fish densities increase across natural lakes, consistent with the idea that the magnitude of plasticity is shaped by environmental conditions underlying selection. Collectively, these results demonstrate how selection acts to drive adaptive plasticity in a common predator avoidance strategy.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"665-673"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002669","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}
EvolutionPub Date : 2025-04-02DOI: 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":"10.1093/evolut/qpaf013","url":null,"abstract":"<p><p>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.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"625-640"},"PeriodicalIF":3.1,"publicationDate":"2025-04-02","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}
EvolutionPub Date : 2025-03-31DOI: 10.1093/evolut/qpaf069
Leilton W Luna, Sara E Lipshutz
{"title":"Genetic evidence of female philopatry in a socially polyandrous shorebird.","authors":"Leilton W Luna, Sara E Lipshutz","doi":"10.1093/evolut/qpaf069","DOIUrl":"https://doi.org/10.1093/evolut/qpaf069","url":null,"abstract":"<p><p>Sex-biased dispersal plays a key role in shaping population dynamics and genetic structure. Two main hypotheses have been proposed for how territoriality and mating competition impact sex-biased dispersal. Female-biased dispersal is expected in monogamous systems with male resource defense, whereas male-biased dispersal is expected in polygynous systems with male competition over mates. However, patterns of sex-biased dispersal in socially polyandrous species, where females compete for both territories and mates, remain poorly understood. We investigated sex-biased dispersal in two polyandrous Jacana species across Central America, the Northern Jacana (Jacana spinosa) and Wattled Jacana (J. jacana), which exhibit intense female-female competition for territories and mates and differ in the strength of sexual selection. We analyzed sex-biased dispersal by assessing genetic differentiation and individual assignment indices to determine the probability of an individual being a recent immigrant or philopatric in relation to its sampling location. Our findings reveal strong male-biased dispersal in Northern Jacanas, indicated by higher genetic structuring and philopatry in females. In contrast, Wattled Jacanas showed no significant dispersal bias between sexes. Furthermore, sexually selected traits in Northern Jacana females, such as larger body mass and wing spur length, were associated with philopatry, suggesting that larger females retain territories, whereas smaller females disperse. To our knowledge, this is the first genetic evidence of male-biased dispersal in a polyandrous species. Our findings reveal that sexually selected traits, in addition to territorial and mate competition, are important for understanding species and sex differences in dispersal evolution.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143751767","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}
EvolutionPub Date : 2025-03-29DOI: 10.1093/evolut/qpaf064
Thomas MacGillavry
{"title":"Contingency, Determinism, and Constraint in the Evolution of Elaborate Courtship Phenotypes.","authors":"Thomas MacGillavry","doi":"10.1093/evolut/qpaf064","DOIUrl":"https://doi.org/10.1093/evolut/qpaf064","url":null,"abstract":"<p><p>Natural selection is broadly considered to be a deterministic process, though the roles of historical contingency and constraint are increasingly being recognised as key factors shaping the diversity of life on earth. Sexual selection through mate choice is similarly deterministic and there is increasing evidence that processes such as sensory drive may produce predictable evolutionary outcomes in the design features of sexual signals. However, much variation amid the extraordinary diversity of courtship phenotypes among animals is left unexplained by purely deterministic processes. Since evolution acts without foresight, the elaboration of phenotypes-including those involved in sexual signalling-is analogous to a tinkering process, meaning that nuanced historical contingencies in an organism's phylogenetic history set the stage for unique constraints in the future. Even in famously diverse 'ornamental' radiations, such as the birds of paradise-which feature numerous unique courtship traits or evolutionary \"one-offs\"-they also exhibit exceptional convergence in signalling traits despite strikingly diverse signal production mechanisms. While comparative research often focuses on signaller phenotypes, a clear distinction between signal production mechanisms (i.e., the mechanical or physiological basis of display) and their perceptual effects for signal receivers (i.e., signal design features) is critical to understand the deterministic processes shaping signal evolution. Furthermore, while there may be disparate evolutionary trajectories to similar elaborate signalling phenotypes, the resulting unique mechanisms of display can impose equally unique constraints on signalling phenotypes. These and other findings suggest that, to understand the evolution of elaborate courtship phenotypes, comparative research should address the interacting effects of deterministic processes, historical contingencies, and biological constraints.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143742742","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}
EvolutionPub Date : 2025-03-24DOI: 10.1093/evolut/qpaf061
Tim Connallon, Peter Czuppon, Colin Olito, Debora Goedert, Hanna Kokko, Angela Nava-Bolaños, Sofie Nilén, Erik I Svensson, Martyna Zwoinska, Ludovic Dutoit, Filip Ruzicka
{"title":"Predicting the prevalence of genetic trade-offs among adaptive substitutions.","authors":"Tim Connallon, Peter Czuppon, Colin Olito, Debora Goedert, Hanna Kokko, Angela Nava-Bolaños, Sofie Nilén, Erik I Svensson, Martyna Zwoinska, Ludovic Dutoit, Filip Ruzicka","doi":"10.1093/evolut/qpaf061","DOIUrl":"https://doi.org/10.1093/evolut/qpaf061","url":null,"abstract":"<p><p>Genetic trade-offs-which occur when variants that are beneficial in some contexts of natural selection are harmful in others-can influence a wide range of evolutionary phenomena, from the maintenance of genetic variation to the evolution of aging and sex differences. An extensive body of evolutionary theory has focused on the consequences of such trade-offs, and recent analyses of Fisher's geometric model have further quantified the expected proportion of new mutations that exhibit trade-offs. However, the theory remains silent regarding the prevalence of trade-offs among the variants that contribute to adaptation. Here, we extend Fisher's geometric model to predict the prevalence of trade-offs among the adaptive mutations that become established or fixed in a population. We consider trade-offs between sexes, habitats, fitness components, and temporally fluctuating environments. In all four scenarios, trade-off alleles are consistently under-represented among established relative to new beneficial mutations-an effect that arises from the greater susceptibility of trade-off alleles to genetic drift. Adaptation during a population size decline exacerbates this deficit of trade-offs among established mutations, whereas population expansions dampen it. Consequently, threatened populations should primarily adapt using unconditionally beneficial alleles, while invasive populations are more prone to adaptation using variants that exhibit trade-offs.</p>","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143700099","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}