Molecular Ecology最新文献

Comparative Phylogeography of West African Rainforest Frogs Reveals Regional Variation in Refugia Dynamics. 西非雨林青蛙的比较系统地理学揭示了避难所动态的区域差异。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-07-30 DOI: 10.1111/mec.70043

Mario Ernst, Daniel M Portik, Gabriel H Segniagbeto, Caleb Ofori-Boateng, Joseph Doumbia, Johannes Penner, N'Goran G Kouamé, Matthew K Fujita, Adam D Leaché, Mozes P K Blom, Mark-Oliver Rödel

{"title":"Comparative Phylogeography of West African Rainforest Frogs Reveals Regional Variation in Refugia Dynamics.","authors":"Mario Ernst, Daniel M Portik, Gabriel H Segniagbeto, Caleb Ofori-Boateng, Joseph Doumbia, Johannes Penner, N'Goran G Kouamé, Matthew K Fujita, Adam D Leaché, Mozes P K Blom, Mark-Oliver Rödel","doi":"10.1111/mec.70043","DOIUrl":"https://doi.org/10.1111/mec.70043","url":null,"abstract":"Understanding how species responded to climatic change in the past can help predict the long-term implications of contemporary climate change. The Upper Guinean rainforests of West Africa are a global biodiversity hotspot, and it is well documented that climatic fluctuations in the Pleistocene drove the expansion and contraction of rainforest cover in this region. West African slippery frogs, genus Conraua, are rainforest specialists and present an excellent opportunity to study the effects of climate-driven landscape changes on contemporary phylogeographic patterns and population dynamics. They exclusively inhabit rainforest streams and show little morphological or ecological disparity. We generated a population-level dataset of genome-wide restriction site-associated DNA (RAD) loci for four species spread across Upper Guinea. The observed phylogeographic structure is consistent with previously postulated macro- and micro-refugia. Building on these results, we used demographic modelling to trace demographic trends over time and infer population connectivity patterns. Overall, populations in topographically complex regions, like the Fouta Djallon, showed signatures of long-term local persistence and milder changes in population size. In contrast, we found more dynamic histories of contraction and expansion in the main Upper Guinean rainforest block. Our findings provide insights into regional biodiversity patterns and show large variation in population responses to climatic fluctuations. This suggests that local environmental factors have played a key role in shaping population dynamics. Such insights are particularly relevant in relatively understudied biodiversity hotspots, such as the Upper Guinean rainforests of West Africa. Our results have implications for conservation management and prioritisation at the species, site, and ecosystem level.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70043"},"PeriodicalIF":3.9,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urban Life Shapes Genetic Diversity in the Green Anole, Anolis carolinensis. 城市生活塑造了卡罗莱纳绿蜥的遗传多样性。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-07-29 DOI: 10.1111/mec.70057

Yann Bourgeois, Simon Lailvaux, Stéphane Boissinot

{"title":"Urban Life Shapes Genetic Diversity in the Green Anole, Anolis carolinensis.","authors":"Yann Bourgeois, Simon Lailvaux, Stéphane Boissinot","doi":"10.1111/mec.70057","DOIUrl":"https://doi.org/10.1111/mec.70057","url":null,"abstract":"Urbanisation presents unique environmental pressures that drive rapid evolutionary adaptations, particularly in species inhabiting fragmented and anthropogenised landscapes. In this study, we investigate the genomic differentiation between urban and non-urban populations of Anolis carolinensis, focusing on two main aspects: (1) the effect of habitat fragmentation on inbreeding and mutational load and (2) genomic adaptation to the urban habitat. We found that urban populations can exhibit a reduced mutational load, which is a direct consequence of systemic inbreeding. Using genome-wide scans of selection and analyses of genetic diversity, we identify key genomic regions exhibiting significant divergence between urban and non-urban populations. These regions are enriched for genes associated with immunity, behaviour and development, suggesting that urban adaptation is polygenic and involves traits related to stress response, locomotion and thermoregulation. Scans for association with the urban environment reveal a large genomic region in chromosome 2 encompassing the HOXC gene cluster. We also detect a signal of both association and increased differentiation on chromosome 1 in a region previously identified as a candidate for convergent adaptation in another Anolis species, A. cristatellus. Although evidence for convergent evolution at the gene level remains limited, potential signatures of urban adaptation in loci involved in immune response, locomotion and behaviour support the hypothesis that urban environments exert similar selective pressures across species. These results provide evidence for redundancy and polygenic adaptation and highlight the complexity of urban evolution. Future work with denser population sampling and time-series data will be essential to confirm the role of urban selective pressures and track the genetic dynamics of urban populations over time.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70057"},"PeriodicalIF":3.9,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Phylogenetic Host-Range Index Reveals Ecological Constraints in Phage Specialisation and Virulence. 系统发育宿主范围指数揭示了噬菌体特化和毒力的生态限制。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-07-28 DOI: 10.1111/mec.70052

Clara Torres-Barceló, Claudine Boyer, Julian R Garneau, Stéphane Poussier, Isabelle Robène, Benoît Moury

{"title":"A Phylogenetic Host-Range Index Reveals Ecological Constraints in Phage Specialisation and Virulence.","authors":"Clara Torres-Barceló, Claudine Boyer, Julian R Garneau, Stéphane Poussier, Isabelle Robène, Benoît Moury","doi":"10.1111/mec.70052","DOIUrl":"https://doi.org/10.1111/mec.70052","url":null,"abstract":"Phages are typically known for having a limited host range, targeting particular strains within a bacterial species, but accurately measuring their specificity remains challenging. Factors like the genetic diversity or population dynamics of host bacteria are often disregarded despite their potential influence on phage specialisation and virulence. This study focuses on the Ralstonia solanacearum species complex (RSSC), which comprises genetically diverse bacteria responsible for a major plant disease. It uses a diversified collection of RSSC phages to develop new host-range analysis methods and to test ecological and evolutionary hypotheses on phage host range. We introduce a new 'phylogenetic host-range index' that employs an ecological diversity index to account for the genetic diversity of bacterial hosts, allowing systematic classification of phages along a continuum between specialists and generalists. We propose and provide evidence that generalist phages are more likely to be represented in CRISPR-Cas immune system of bacteria than specialist phages. We explore the hypothesis that generalist phages might exhibit lower virulence than specialist ones due to potential evolutionary trade-offs between host-range breadth and virulence. Importantly, contrasted correlations between phage virulence and host range depend on the epidemiological context. A trade-off was confirmed in a context of low bacterial diversity, but not in a context of higher bacterial diversity, where no apparent costs were detected for phages adapted to a wide range of hosts. This study highlights the need for genetic analyses in phage host range and of investigating ecological trade-offs that could improve both fundamental phage knowledge and applications in biocontrol or therapy.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70052"},"PeriodicalIF":3.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gene Flow Accompanies Divergence in Beringian Birds. 基因流动伴随着白令陆桥鸟类的分化。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-07-28 DOI: 10.1111/mec.70056

Caitlyn C Oliver Brown, Travis C Glenn, Kevin Winker

{"title":"Gene Flow Accompanies Divergence in Beringian Birds.","authors":"Caitlyn C Oliver Brown, Travis C Glenn, Kevin Winker","doi":"10.1111/mec.70056","DOIUrl":"https://doi.org/10.1111/mec.70056","url":null,"abstract":"The generation and maintenance of biodiversity are driven by population divergence and speciation. We investigated divergence, gene flow, and speciation in Beringia, a region at the top of the North Pacific Ocean with a history of dramatic landscape alteration through Pleistocene glacial cycles. These cycles repeatedly split and connected the Asian and North American continents, separating and reconnecting avian populations. Glacial refugia within Beringia also isolated some populations for a time before potentially enabling them to reunite during interglacial periods. Prior work suggests gene flow plays an important role in the divergence of Beringian birds. To improve our understanding of the generation of avian diversity in Beringia, we tested models of demographic history in 11 lineages from five avian orders (Anseriformes, Gaviiformes, Charadriiformes, Piciformes and Passeriformes) using population-, subspecies- and species-level pairwise comparisons. We sequenced an average of 3710 ultraconserved element (UCE) loci from the nuclear genomes of these taxa to examine genetic differentiation and test models of divergence through diffusion analysis for demographic inference (δaδi). All of the inferred best-fit models of divergence included gene flow. Together with prior work, this corroborates that divergence with gene flow is the predominant mode of divergence and speciation in Beringian birds.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70056"},"PeriodicalIF":3.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Museomics and Salvaged Feathers Piece Together the Evolutionary History and Conservation Genomics of the Elusive, Critically Endangered Night Parrot (Pezoporus occidentalis). 博物馆组学和打捞的羽毛拼凑了难以捉摸的、极度濒危的夜鹦鹉（Pezoporus occidentalis）的进化历史和保护基因组学。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-07-28 DOI: 10.1111/mec.70055

Heng Lin Yeap, Gunjan Pandey, Jeremy J Austin, John G Oakeshott, Christopher M Hardy, Stephen A Murphy, Nicholas P Leseberg, Allan H Burbidge, Kenny J Travouillon, Leo Joseph, Anna M Kearns

{"title":"Museomics and Salvaged Feathers Piece Together the Evolutionary History and Conservation Genomics of the Elusive, Critically Endangered Night Parrot (Pezoporus occidentalis).","authors":"Heng Lin Yeap, Gunjan Pandey, Jeremy J Austin, John G Oakeshott, Christopher M Hardy, Stephen A Murphy, Nicholas P Leseberg, Allan H Burbidge, Kenny J Travouillon, Leo Joseph, Anna M Kearns","doi":"10.1111/mec.70055","DOIUrl":"https://doi.org/10.1111/mec.70055","url":null,"abstract":"The Night Parrot is a critically endangered nocturnal bird of Australia's arid zone. The species was \"lost\" for most of the 20th century until its rediscovery in 1990. Extant populations are now known in eastern and western Australia, but the species has been extirpated from much of its historical range. Here we estimate critically needed Essential Biodiversity Variables (EBVs) for the Night Parrot from historical and opportunistically collected contemporary samples. We find little population structure across the species' range and evidence of recent connectivity between extant populations ~2000 km apart. Most eastern individuals show significant kinship with one another, as did two from an extinct population in southern Australia. Heterozygosity is similarly low in all extant populations but ten-fold lower in the extinct population sampled. Coalescent modelling of effective population size (Ne) suggests that Night Parrot numbers were reasonably high until around 90 years ago when Ne crashed from ~10,000 to ~100. Current Ne is now at its lowest in the past several million years. Our findings will help guide the ongoing management of one of Australia's most threatened birds.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70055"},"PeriodicalIF":3.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenotypic Divergence and Genomic Architecture Between Parallel Ecotypes at Two Different Points on the Speciation Continuum in a Marine Snail. 在海洋蜗牛物种形成连续体的两个不同点上平行生态型之间的表型分化和基因组结构。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-07-28 DOI: 10.1111/mec.70025

Francesca Raffini, Aurélien De Jode, Kerstin Johannesson, Rui Faria, Zuzanna B Zagrodzka, Anja M Westram, Juan Galindo, Emilio Rolán-Alvarez, Roger K Butlin

{"title":"Phenotypic Divergence and Genomic Architecture Between Parallel Ecotypes at Two Different Points on the Speciation Continuum in a Marine Snail.","authors":"Francesca Raffini, Aurélien De Jode, Kerstin Johannesson, Rui Faria, Zuzanna B Zagrodzka, Anja M Westram, Juan Galindo, Emilio Rolán-Alvarez, Roger K Butlin","doi":"10.1111/mec.70025","DOIUrl":"https://doi.org/10.1111/mec.70025","url":null,"abstract":"Speciation is rarely observable directly. A way forward is to compare pairs of ecotypes that evolved in parallel in similar contexts but have reached different degrees of reproductive isolation. Such comparisons are possible in the marine snail Littorina saxatilis by contrasting barriers to gene flow between parallel ecotypes in Spain and Sweden. In both countries, divergent ecotypes have evolved to withstand either crab predation or wave action. Here, we explore transects spanning contact zones between the Crab and the Wave ecotypes using low-coverage whole-genome sequencing, morphological and behavioural traits. Despite parallel phenotypic divergence, distinct patterns of differentiation between the ecotypes emerged: a continuous cline in Sweden indicating a weak barrier to gene flow, but two highly genetically and phenotypically divergent, and partly spatially overlapping clusters in Spain suggesting a much stronger barrier to gene flow. The absence of Spanish early-generation hybrids supported strong isolation, but a low level of gene flow is evident from molecular data. In both countries, highly differentiated loci were located in both shared and country-specific chromosomal inversions but were also present in collinear regions. Despite being considered the same species and showing similar levels of phenotypic divergence, the Spanish ecotypes are much closer to full reproductive isolation than the Swedish ones. Barriers to gene flow of very different strengths between ecotypes within the same species might be explained by dissimilarities in the spatial arrangement of habitats, the selection gradients or the ages of the systems.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70025"},"PeriodicalIF":3.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sex-Dependent Influence of Major Histocompatibility Complex Diversity on Fitness in a Social Mammal. 社会性哺乳动物主要组织相容性复合体多样性对适应性的性别依赖性影响。

IF 4.5 1区生物学

Molecular Ecology Pub Date : 2025-07-26 DOI: 10.1111/mec.70058

Nadine Schubert, Hazel J Nichols, Francis Mwanguhya, Robert Businge, Solomon Kyambulima, Kenneth Mwesige, Joseph I Hoffman, Michael A Cant, Jamie C Winternitz

{"title":"Sex-Dependent Influence of Major Histocompatibility Complex Diversity on Fitness in a Social Mammal.","authors":"Nadine Schubert, Hazel J Nichols, Francis Mwanguhya, Robert Businge, Solomon Kyambulima, Kenneth Mwesige, Joseph I Hoffman, Michael A Cant, Jamie C Winternitz","doi":"10.1111/mec.70058","DOIUrl":"https://doi.org/10.1111/mec.70058","url":null,"abstract":"Parasite infections affect males and females differently across a wide range of species, often due to differences in immune responses. Generally, females tend to have stronger immune defences and lower parasite loads than males. The major histocompatibility complex (MHC) plays a crucial role in the adaptive immune response, and extensive research has explored how variation in this region influences infection and fitness outcomes. However, studies of sex-specific relationships between MHC variation and infection are scarce, perhaps because MHC genes are located on the autosomes, which are shared by both sexes. Here, we provide evidence of sexually antagonistic selection in a wild, group-living mammal-the banded mongoose. Using genetic and life history data collected from over 300 individuals across 25 years, we found that both MHC class I (MHC-I) and MHC class II (MHC-II) diversity influence lifetime reproductive success differently in males and females. Specifically, higher MHC diversity is linked to increased fitness in males but decreased fitness in females. Furthermore, MHC diversity did not differ between the sexes, indicating an unresolved genetic sexual conflict. Our findings demonstrate that sexually antagonistic selection acts on the MHC and may operate across both MHC classes but differently. This study contributes to the growing body of evidence that sex is a significant factor in shaping host immunity and fitness.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70058"},"PeriodicalIF":4.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linking DNA Methylation to Localised Genetic Differentiation in Timema cristinae Stick Insects. 竹节虫DNA甲基化与局部遗传分化的关系

IF 4.5 1区生物学

Molecular Ecology Pub Date : 2025-07-26 DOI: 10.1111/mec.70049

Clarissa F de Carvalho, Nicholas P Planidin, Romain Villoutreix, Víctor Soria-Carrasco, Rüdiger Riesch, Jeffrey L Feder, Jon Slate, Patrik Nosil, Zachariah Gompert

{"title":"Linking DNA Methylation to Localised Genetic Differentiation in Timema cristinae Stick Insects.","authors":"Clarissa F de Carvalho, Nicholas P Planidin, Romain Villoutreix, Víctor Soria-Carrasco, Rüdiger Riesch, Jeffrey L Feder, Jon Slate, Patrik Nosil, Zachariah Gompert","doi":"10.1111/mec.70049","DOIUrl":"https://doi.org/10.1111/mec.70049","url":null,"abstract":"Understanding speciation is a fundamental goal in evolutionary biology. Genome scans of genetic differentiation (FST) have become a cornerstone of speciation research, helping identify genomic regions likely involved in population divergence and speciation. While such studies have advanced our understanding, the relationship between epigenetic mechanisms and genetic differentiation remains unclear. Here, we present evidence that DNA methylation is associated with regions exhibiting accentuated genetic differentiation between populations of Timema cristinae stick insects. We do so by integrating analyses of differentially methylated regions (DMRs) between individuals from different host-plant species with genomic sequencing. Our results reveal that DMRs often show greater FST than expected by chance. Strikingly, the magnitude of this accentuation of FST in DMRs increases with the geographical distance between populations. We present results evaluating the contributions of mutation, reduced recombination, gene flow, and selection to these divergence patterns. The overall results are consistent with a role for a balance between selection and gene flow, a finding further supported by a previously published survival field experiment. Nevertheless, details of our results suggest that selection on DMRs might be indirect and not strictly host-related. Our results establish associations between methylation and genetic change, but further work is required to clarify the causes of this association. Nonetheless, our results provide insight into how the interplay of epigenetic and genetic variation may influence population divergence and potentially contribute to speciation.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70049"},"PeriodicalIF":4.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inversions Dominate Evolution in the European Sardine (Sardina pilchardus) Amid Strong Gene Flow. 在强大的基因流动中，欧洲沙丁鱼（Sardina pilchardus）的逆序进化占主导地位。

IF 4.5 1区生物学

Molecular Ecology Pub Date : 2025-07-25 DOI: 10.1111/mec.70027

Stephen J Sabatino, M Pilar Cabezas, Paulo Pereira, Susana Garrido, António M Santos, Miguel Carneiro, Paulo T Santos, Bruno Louro, Cymon J Cox, Adelino V M Canário, Ana Veríssimo

{"title":"Inversions Dominate Evolution in the European Sardine (Sardina pilchardus) Amid Strong Gene Flow.","authors":"Stephen J Sabatino, M Pilar Cabezas, Paulo Pereira, Susana Garrido, António M Santos, Miguel Carneiro, Paulo T Santos, Bruno Louro, Cymon J Cox, Adelino V M Canário, Ana Veríssimo","doi":"10.1111/mec.70027","DOIUrl":"https://doi.org/10.1111/mec.70027","url":null,"abstract":"Inversions can play key roles in the genetic architecture of adaptation, but the scale of their effects across different species remains poorly understood. Here, we use whole-genome sequencing and demographic modelling to investigate the influence of inversions on the population genomics of the r-selected European sardine (Sardina pilchardus). Allele frequency differences from millions of SNPs across 34 populations spanning the species' range were analysed. Genomic scans identified several extreme outlier regions overlapping large inversions (29-52 Mbp), collectively representing over half the genome. Our findings suggest these inversions correlate with locally adapted life-history strategies. First, SNPs within outlier regions containing inversions exhibited striking allele frequency differences between Atlantic and Mediterranean sardines, which differ in key adaptive life-history traits. In the Atlantic, inversion allele frequencies varied latitudinally, while in the Mediterranean, they shifted longitudinally, aligning with temperature and oceanographic features that influence sardine life-history strategies. Moreover, adjacent populations in contrasting environments exhibited pronounced differences in inversion allele frequencies, accompanied by a marked reduction in migration between them. In contrast, spatial patterns at neutral loci showed widespread gene flow, isolation by distance within basins, and population structure between Atlantic and Mediterranean basins (except for the Canary Islands). These results suggest that the inversions studied are under selection and demonstrate the capacity of large inversions to shape genome-wide patterns of genetic diversity and population structure in species characterized by widespread gene flow. Our work also offers crucial insights for stock delimitation and management of this commercially valuable species in the face of climate change.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70027"},"PeriodicalIF":4.5,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Devil Is in the Details: Assessing Temporal Changes in Genetic Diversity Across Managed and Unmanaged Sites. 细节决定成败：评估管理和非管理地点遗传多样性的时间变化。

IF 4.5 1区生物学

Molecular Ecology Pub Date : 2025-07-25 DOI: 10.1111/mec.70020

Jana R Wold, Tammy E Steeves

引用次数: 0