Evolution最新文献_第8页

Recurrent evolution of small body size and loss of the sword ornament in Northern swordtail fish. 北方剑尾鱼体型变小和剑饰消失的反复进化。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-02 DOI: 10.1093/evolut/qpae124

Gabriel A Preising, Theresa Gunn, John J Baczenas, Daniel L Powell, Tristram O Dodge, Sean T Sewell, Alexa Pollock, Jose Angel Machin Kairuz, Markita Savage, Yuan Lu, Meredith Fitschen-Brown, Axel Meyer, Manfred Schartl, Molly Cummings, Sunishka Thakur, Callen M Inman, Oscar Ríos-Cardenas, Molly Morris, Michael Tobler, Molly Schumer

{"title":"Recurrent evolution of small body size and loss of the sword ornament in Northern swordtail fish.","authors":"Gabriel A Preising, Theresa Gunn, John J Baczenas, Daniel L Powell, Tristram O Dodge, Sean T Sewell, Alexa Pollock, Jose Angel Machin Kairuz, Markita Savage, Yuan Lu, Meredith Fitschen-Brown, Axel Meyer, Manfred Schartl, Molly Cummings, Sunishka Thakur, Callen M Inman, Oscar Ríos-Cardenas, Molly Morris, Michael Tobler, Molly Schumer","doi":"10.1093/evolut/qpae124","DOIUrl":"10.1093/evolut/qpae124","url":null,"abstract":"Across the tree of life, species have repeatedly evolved similar phenotypes. While well-studied for ecological traits, there is also evidence for recurrent evolution of sexually selected traits. Swordtail fish (Xiphophorus) is a classic model system for studying sexual selection, and female Xiphophorus exhibit strong mate preferences for large male body sizes and a range of sexually dimorphic ornaments. Interestingly, sexually selected traits have also been lost multiple times in the genus. However, there has been uncertainty over the number of losses of ornamentation and large body size because phylogenetic relationships between species in this group have historically been controversial, partially due to prevalent gene flow. Here, we use whole-genome sequencing approaches to reexamine phylogenetic relationships within a Xiphophorus clade that varies in the presence and absence of sexually selected traits. Using wild-caught individuals, we determine the phylogenetic placement of a small, unornamented species, X. continens, confirming an additional loss of ornamentation and large body size in the clade. With these revised phylogenetic relationships, we analyze evidence for coevolution between body size and other sexually selected traits using phylogenetic comparative methods. These results provide insights into the evolutionary pressures driving the recurrent loss of suites of sexually selected traits.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"2017-2031"},"PeriodicalIF":3.1,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11637981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282508","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

Making sense of recent models of the "sheltering" hypothesis for recombination arrest between sex chromosomes. 性染色体间重组停滞的 "庇护 "假说的最新模型的意义。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-12-02 DOI: 10.1093/evolut/qpae119

Brian Charlesworth, Colin Olito

{"title":"Making sense of recent models of the \"sheltering\" hypothesis for recombination arrest between sex chromosomes.","authors":"Brian Charlesworth, Colin Olito","doi":"10.1093/evolut/qpae119","DOIUrl":"10.1093/evolut/qpae119","url":null,"abstract":"In their most extreme form, sex chromosomes exhibit a complete lack of genetic recombination along much of their length in the heterogametic sex. Some recent models explain the evolution of such suppressed recombination by the \"sheltering\" of deleterious mutations by chromosomal inversions that prevent recombination around a polymorphic locus controlling sex. This sheltering hypothesis is based on the following reasoning. An inversion that is associated with the male-determining allele (with male heterogamety) is present only in the heterozygous state. If such an inversion carries a lower-than-average number of deleterious mutations, it will accrue a selective advantage and will be sheltered from homozygosity for any mutations that it carries due to the enforced heterozygosity for the inversion itself. It can, therefore, become fixed among all carriers of the male-determining allele. Recent population genetics models of this process are discussed. It is shown that, except under the unlikely scenario of a high degree of recessivity of most deleterious mutations, inversions of this type that lack any other fitness effects will have, at best, a modest selective advantage; they will usually accumulate on proto-Y chromosomes at a rate close to, or less than, the neutral expectation. While the existence of deleterious mutations does not necessarily prevent the spread of Y-linked inversions, it is unlikely to provide a significant selective advantage to them.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1891-1899"},"PeriodicalIF":3.1,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142461277","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

Rapid evolution of recombination landscapes during the divergence of cichlid ecotypes in Lake Masoko. 马索科湖慈鲷生态型分化过程中重组景观的快速演变

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-11-26 DOI: 10.1093/evolut/qpae169

Marion Talbi, George F Turner, Milan Malinsky

{"title":"Rapid evolution of recombination landscapes during the divergence of cichlid ecotypes in Lake Masoko.","authors":"Marion Talbi, George F Turner, Milan Malinsky","doi":"10.1093/evolut/qpae169","DOIUrl":"https://doi.org/10.1093/evolut/qpae169","url":null,"abstract":"Variation of recombination rate along the genome is of crucial importance to rapid adaptation and organismal diversification. Many unknowns remain regarding how and why recombination landscapes evolve in nature. Here, we reconstruct recombination maps based on linkage disequilibrium and use subsampling and simulations to derive a new measure of recombination landscape evolution: the Population Recombination Divergence Index (PRDI). Using PRDI, we show that fine-scale recombination landscapes differ substantially between two cichlid fish ecotypes of Astatotilapia calliptera that diverged only ~2,500 generations ago. Perhaps surprisingly, recombination landscape differences are not driven by divergence in terms of allele frequency (FST) and nucleotide diversity (Δπ): although there is some association, we observe positive PRDI in regions where FST and Δπ are zero. We found a stronger association between evolution of recombination and 47 large haplotype blocks that are polymorphic in Lake Masoko, cover 21% of the genome, and appear to include multiple inversions. Among haplotype blocks, there is a strong and clear association between the degree of recombination divergence and differences between ecotypes in heterozygosity, consistent with recombination suppression in heterozygotes. Overall, our work provides a holistic view of changes in population recombination landscapes during early stages of speciation with gene flow.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727317","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

Extended phenotype affects somatic phenotype in spiders: web builders have lower estimated biting forces than free hunters. 扩展表型会影响蜘蛛的体表表型：筑网者的估计咬合力低于自由捕食者。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-11-26 DOI: 10.1093/evolut/qpae170

Corinthia R Black, Jeffrey W Shultz, Hannah M Wood

{"title":"Extended phenotype affects somatic phenotype in spiders: web builders have lower estimated biting forces than free hunters.","authors":"Corinthia R Black, Jeffrey W Shultz, Hannah M Wood","doi":"10.1093/evolut/qpae170","DOIUrl":"https://doi.org/10.1093/evolut/qpae170","url":null,"abstract":"Reciprocal selection between extended and somatic phenotypes is an active area of investigation. Recent research on the influence of web building on somatic evolution in spiders has produced conflicting results, with some finding no effect of web use on somatic evolution and others showing significant effects. These studies differed in focus, with the former surveying general anatomical traits and the latter concentrating on somatic systems with significant functional roles in prey capture. Here we propose and test the hypothesis that prey immobilization by webs is broadly synergistic with cheliceral biting force and that web builders have lower cheliceral forces compared to free hunters. Our analysis focused on the intercheliceral (IC) sclerite and muscles, a newly characterized system that is synapomorphic and ubiquitously distributed in spiders. Using µCT scans, we quantify IC sclerite shape and model IC muscle function. Statistical analyses show that inferred size-corrected isometric muscle force is lower in web-builders than in free-hunters. No such association was found for IC sclerite shape. In the investigation of reciprocal selective effects between extended and somatic phenotypes, our results highlight the importance that these traits be functionally linked and adaptive.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715790","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

Hill-Robertson interference may bias the inference of fitness effects of new mutations in highly selfing species. 在高度自交的物种中，希尔-罗伯逊干扰可能会使新突变对适应性影响的推断产生偏差。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-11-20 DOI: 10.1093/evolut/qpae168

Austin Daigle, Parul Johri

{"title":"Hill-Robertson interference may bias the inference of fitness effects of new mutations in highly selfing species.","authors":"Austin Daigle, Parul Johri","doi":"10.1093/evolut/qpae168","DOIUrl":"10.1093/evolut/qpae168","url":null,"abstract":"The accurate estimation of the distribution of fitness effects (DFE) of new mutations is critical for population genetic inference but remains a challenging task. While various methods have been developed for DFE inference using the site frequency spectrum of putatively neutral and selected sites, their applicability in species with diverse life history traits and complex demographic scenarios is not well understood. Selfing is common among eukaryotic species and can lead to decreased effective recombination rates, increasing the effects of selection at linked sites, including interference between selected alleles. We employ forward simulations to investigate the limitations of current DFE estimation approaches in the presence of selfing and other model violations, such as linkage, departures from semidominance, population structure, and uneven sampling. We find that distortions of the site frequency spectrum due to Hill-Robertson interference in highly selfing populations lead to mis-inference of the deleterious DFE of new mutations. Specifically, when inferring the distribution of selection coefficients, there is an overestimation of nearly neutral and strongly deleterious mutations and an underestimation of mildly deleterious mutations when interference between selected alleles is pervasive. In addition, the presence of cryptic population structure with low rates of migration and uneven sampling across subpopulations leads to the false inference of a deleterious DFE skewed towards effectively neutral/mildly deleterious mutations. Finally, the proportion of adaptive substitutions estimated at high rates of selfing is substantially overestimated. Our observations apply broadly to species and genomic regions with little/no recombination and where interference might be pervasive.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675335","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

Juvenile and total reproductive values for sexual reproduction under any genetic system. 任何遗传系统下有性生殖的幼年生殖值和总生殖值。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-11-18 DOI: 10.1093/evolut/qpae163

Petri Rautiala, Jussi Lehtonen

引用次数: 0

Go west, young bunting: recent climate change drives rapid movement of a Great Plains hybrid zone. 向西走，年轻的鹀：最近的气候变化推动了大平原杂交区的快速移动。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-10-28 DOI: 10.1093/evolut/qpae118

Paul J Dougherty, Matthew D Carling

{"title":"Go west, young bunting: recent climate change drives rapid movement of a Great Plains hybrid zone.","authors":"Paul J Dougherty, Matthew D Carling","doi":"10.1093/evolut/qpae118","DOIUrl":"10.1093/evolut/qpae118","url":null,"abstract":"Describing how hybrid zones respond to anthropogenic influence can illuminate how the environment regulates both species distributions and reproductive isolation between species. In this study, we analyzed specimens collected from the Passerina cyanea×P. amoena hybrid zone between 2004 and 2007 and between 2019 and 2021 to explore changes in genetic structure over time. This comparison follows a previous study that identified a significant westward shift of the Passerina hybrid zone during the latter half of the twentieth century. A second temporal comparison of hybrid zone genetic structure presents unique potential to describe finer-scale dynamics and to identify potential mechanisms of observed changes more accurately. After concluding that the westward movement of the Passerina hybrid zone has accelerated in recent decades, we investigated potential drivers of this trend by modeling the influence of bioclimatic and landcover variables on genetic structure. We also incorporated eBird data to determine how the distributions of P. cyanea and P. amoena have responded to recent climate and landcover changes. We found that the distribution of P. cyanea in the northern Great Plains has shifted west to track a moving climatic niche, supporting anthropogenic climate change as a key mediator of introgression in this system.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1774-1789"},"PeriodicalIF":3.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11519009/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105776","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

Mitonuclear compatibility is maintained despite relaxed selection on male mitochondrial DNA in bivalves with doubly uniparental inheritance. 在双亲单性遗传的双壳类动物中，尽管对雄性线粒体 DNA 的选择较为宽松，但线粒体核兼容性仍得以保持。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-10-28 DOI: 10.1093/evolut/qpae108

Chase H Smith, Raquel Mejia-Trujillo, Justin C Havird

{"title":"Mitonuclear compatibility is maintained despite relaxed selection on male mitochondrial DNA in bivalves with doubly uniparental inheritance.","authors":"Chase H Smith, Raquel Mejia-Trujillo, Justin C Havird","doi":"10.1093/evolut/qpae108","DOIUrl":"10.1093/evolut/qpae108","url":null,"abstract":"Mitonuclear coevolution is common in eukaryotes, but bivalve lineages that have doubly uniparental inheritance (DUI) of mitochondria may be an interesting example. In this system, females transmit mtDNA (F mtDNA) to all offspring, while males transmit a different mtDNA (M mtDNA) solely to their sons. Molecular evolution and functional data suggest oxidative phosphorylation (OXPHOS) genes encoded in M mtDNA evolve under relaxed selection due to their function being limited to sperm only (vs. all other tissues for F mtDNA). This has led to the hypothesis that mitonuclear coevolution is less important for M mtDNA. Here, we use comparative phylogenetics, transcriptomics, and proteomics to understand mitonuclear interactions in DUI bivalves. We found nuclear OXPHOS proteins coevolve and maintain compatibility similarly with both F and M mtDNA OXPHOS proteins. Mitochondrial recombination did not influence mitonuclear compatibility and nuclear-encoded OXPHOS genes were not upregulated in tissues with M mtDNA to offset dysfunction. Our results support that selection maintains mitonuclear compatibility with F and M mtDNA despite relaxed selection on M mtDNA. Strict sperm transmission, lower effective population size, and higher mutation rates may explain the evolution of M mtDNA. Our study highlights that mitonuclear coevolution and compatibility may be broad features of eukaryotes.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1790-1803"},"PeriodicalIF":3.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11519007/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141590033","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

Morphological evolution and niche conservatism across a continental radiation of Australian blindsnakes. 澳大利亚百步蛇大陆辐射区的形态演变和生态位保守性。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-10-28 DOI: 10.1093/evolut/qpae132

Sarin Tiatragul, Alexander Skeels, J Scott Keogh

{"title":"Morphological evolution and niche conservatism across a continental radiation of Australian blindsnakes.","authors":"Sarin Tiatragul, Alexander Skeels, J Scott Keogh","doi":"10.1093/evolut/qpae132","DOIUrl":"10.1093/evolut/qpae132","url":null,"abstract":"Understanding how continental radiations are assembled across space and time is a major question in macroevolutionary biology. Here, we use a phylogenomic-scale phylogeny, a comprehensive morphological dataset, and environmental niche models to evaluate the relationship between trait and environment and assess the role of geography and niche conservatism in the continental radiation of Australian blindsnakes. The Australo-Papuan blindsnake genus, Anilios, comprises 47 described species of which 46 are endemic to and distributed across various biomes on continental Australia. Although we expected blindsnakes to be morphologically conserved, we found considerable interspecific variation in all morphological traits we measured. Absolute body length is negatively correlated with mean annual temperature, and body shape ratios are negatively correlated with soil compactness. We found that morphologically similar species are likely not a result of ecological convergence. Age-overlap correlation tests revealed niche similarity decreased with the relative age of speciation events. We also found low geographical overlap across the phylogeny, suggesting that speciation is largely allopatric with low rates of secondary range overlap. Our study offers insights into the eco-morphological evolution of blindsnakes and the potential for phylogenetic niche conservatism to influence continental scale radiations.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1854-1868"},"PeriodicalIF":3.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282507","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 for improved postinfection survival selects for increased disease resistance in Drosophila melanogaster. 通过实验进化提高黑腹果蝇感染后的存活率，从而增强其抗病性。

IF 3.1 2区环境科学与生态学

Evolution Pub Date : 2024-10-28 DOI: 10.1093/evolut/qpae116

Aabeer Basu, Kimaya Tekade, Aparajita Singh, Paresh Nath Das, Nagaraj Guru Prasad

{"title":"Experimental evolution for improved postinfection survival selects for increased disease resistance in Drosophila melanogaster.","authors":"Aabeer Basu, Kimaya Tekade, Aparajita Singh, Paresh Nath Das, Nagaraj Guru Prasad","doi":"10.1093/evolut/qpae116","DOIUrl":"10.1093/evolut/qpae116","url":null,"abstract":"Disease resistance (defined as the host capacity to limit systemic infection intensity) and disease tolerance (defined as the host capacity to limit infection-induced damage) are 2 complementary defense strategies that help the hosts maximize their survival and fitness when infected with pathogens and parasites. In addition to the underlying physiological mechanisms, the existing theory postulates that these 2 strategies differ in terms of the conditions under which each strategy evolves in the host populations, their evolutionary dynamics, and the ecological and epidemiological consequences of their evolution. Here, we explored if one or both of these strategies evolve when host populations are subjected to selection for increased postinfection survival. We experimentally evolved Drosophila melanogaster populations, selecting for the flies that survived an infection with the entomopathogen Enterococcus faecalis. We found that the host populations evolved increased disease resistance in response to selection for increased survival. This was despite the physiological costs associated with increased resistance, the expression of which varied with the phase of infection. We did not find evidence of any change in disease tolerance in the evolved host populations.","PeriodicalId":12082,"journal":{"name":"Evolution","volume":" ","pages":"1831-1843"},"PeriodicalIF":3.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105775","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