{"title":"Genetic adaptations from self-domestication in the yellow fever mosquito","authors":"","doi":"10.1038/s41559-025-02649-z","DOIUrl":"10.1038/s41559-025-02649-z","url":null,"abstract":"Self-domestication in Aedes aegypti mosquitoes (the behaviour of living in association with humans for the past 5,000 years) was accompanied by hundreds of genetic adaptations that affect chemosensory, neuronal, regulatory and metabolic functions. Such adaptations arose by selection acting on preexisting genetic variation and local adaptation driven by neuronal olfactory redundancy.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"9 4","pages":"545-546"},"PeriodicalIF":13.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723256","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}
Alejandro N. Lozada-Chávez, Irma Lozada-Chávez, Niccolò Alfano, Umberto Palatini, Davide Sogliani, Samia Elfekih, Teshome Degefa, Maria V. Sharakhova, Athanase Badolo, Patchara Sriwichai, Mauricio Casas-Martínez, Bianca C. Carlos, Rebeca Carballar-Lejarazú, Louis Lambrechts, Jayme A. Souza-Neto, Mariangela Bonizzoni
{"title":"Adaptive genomic signatures of globally invasive populations of the yellow fever mosquito Aedes aegypti","authors":"Alejandro N. Lozada-Chávez, Irma Lozada-Chávez, Niccolò Alfano, Umberto Palatini, Davide Sogliani, Samia Elfekih, Teshome Degefa, Maria V. Sharakhova, Athanase Badolo, Patchara Sriwichai, Mauricio Casas-Martínez, Bianca C. Carlos, Rebeca Carballar-Lejarazú, Louis Lambrechts, Jayme A. Souza-Neto, Mariangela Bonizzoni","doi":"10.1038/s41559-025-02643-5","DOIUrl":"10.1038/s41559-025-02643-5","url":null,"abstract":"In the arboviral vector Aedes aegypti, adaptation to anthropogenic environments has led to a major evolutionary shift separating the domestic Aedes aegypti aegypti (Aaa) ecotype from the wild Aedes aegypti formosus (Aaf) ecotype. Aaa mosquitoes are distributed globally and have higher vectorial capacity than Aaf, which remained in Africa. Despite the evolutionary and epidemiological relevance of this separation, inconsistent morphological data and a complex population structure have hindered the identification of genomic signals distinguishing the two ecotypes. Here we assessed the correspondence between the geographic distribution, population structure and genome-wide selection of 511 Aaf and 123 Aaa specimens and report adaptive signals in 186 genes that we call Aaa molecular signatures. Our results indicate that Aaa molecular signatures arose from standing variation associated with extensive ancestral polymorphisms in Aaf populations and have been co-opted for self-domestication through genomic and functional redundancy and local adaptation. Overall, we show that the behavioural shift of Ae. aegypti mosquitoes to live in association with humans relied on the fine regulation of chemosensory, neuronal and metabolic functions, as seen in the domestication processes of rabbits and silkworms. Our results also provide a foundation for the investigation of new genic targets for the control of Ae. aegypti populations. Analysing phylogenetic relationships, genome-wide selective sweeps and genetic differentiation among global populations of Aedes aegypti, the authors identify adaptive signals in 186 genes related to self-domestication that distinguish the globally distributed non-African ecotype from its African ancestor.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"9 4","pages":"652-671"},"PeriodicalIF":13.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41559-025-02643-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stepfanie M. Aguillon, Sophia K. Haase Cox, Quinn K. Langdon, Theresa R. Gunn, John J. Baczenas, Shreya M. Banerjee, Alexandra E. Donny, Benjamin M. Moran, Paola Fascinetto-Zago, Carla Gutiérrez-Rodríguez, Oscar Ríos-Cárdenas, Molly R. Morris, Daniel L. Powell, Molly Schumer
{"title":"Pervasive gene flow despite strong and varied reproductive barriers in swordtails","authors":"Stepfanie M. Aguillon, Sophia K. Haase Cox, Quinn K. Langdon, Theresa R. Gunn, John J. Baczenas, Shreya M. Banerjee, Alexandra E. Donny, Benjamin M. Moran, Paola Fascinetto-Zago, Carla Gutiérrez-Rodríguez, Oscar Ríos-Cárdenas, Molly R. Morris, Daniel L. Powell, Molly Schumer","doi":"10.1038/s41559-025-02669-9","DOIUrl":"https://doi.org/10.1038/s41559-025-02669-9","url":null,"abstract":"<p>The evolution of reproductive barriers leads to the formation of new species. However, recent research has demonstrated that hybridization has been pervasive across the tree of life even in the presence of strong barriers. Using swordtail fishes (genus <i>Xiphophorus</i>), an emerging model system, we document overlapping mechanisms that act as barriers to gene flow between <i>Xiphophorus birchmanni</i> and <i>Xiphophorus cortezi</i> by combining genomic sequencing from natural hybrid populations, experimental laboratory crosses, behavioural assays, sperm measures and developmental studies. We show that assortative mating plays a role in maintaining subpopulations with distinct ancestry within natural hybrid populations. Using F<sub>2</sub> hybrids we identify several genomic regions that strongly impact hybrid viability. Strikingly, two of these regions underlie genetic incompatibilities in hybrids between <i>X. birchmanni</i> and its sister species <i>Xiphophorus malinche</i>. Our results demonstrate that ancient hybridization has played a role in the origin of this shared genetic incompatibility. Moreover, ancestry mismatch at these incompatible regions has remarkably similar consequences for phenotypes and hybrid survival in <i>X. cortezi</i> × <i>X. birchmanni</i> hybrids as in <i>X. malinche</i> × <i>X. birchmanni</i> hybrids. Our findings identify varied reproductive barriers that shape genetic exchange between naturally hybridizing species and highlight the complex evolutionary outcomes of hybridization.</p>","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"28 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703312","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}
{"title":"Hybridization contributes to reproductive isolation","authors":"Jing Wang","doi":"10.1038/s41559-025-02654-2","DOIUrl":"https://doi.org/10.1038/s41559-025-02654-2","url":null,"abstract":"An experimental study shows that interspecific hybridization transferred components of genetic incompatibility across species, which facilitated the evolution of reproductive isolation between two swordtail fish species.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"1 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703311","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}
Jennifer L. Baltzer, Xanthe J. Walker, Sander Veraverbeke, Thomas D. Hessilt, Raquel Alfaro-Sanchez, Max J. van Gerrevink, Michelle C. Mack, Emily L. Ogden, Richard Olsen, Rebecca C. Scholten, Merritt R. Turetsky
{"title":"Overwintering fires can occur in both peatlands and upland forests with varying ecological impacts","authors":"Jennifer L. Baltzer, Xanthe J. Walker, Sander Veraverbeke, Thomas D. Hessilt, Raquel Alfaro-Sanchez, Max J. van Gerrevink, Michelle C. Mack, Emily L. Ogden, Richard Olsen, Rebecca C. Scholten, Merritt R. Turetsky","doi":"10.1038/s41559-024-02630-2","DOIUrl":"10.1038/s41559-024-02630-2","url":null,"abstract":"Climate warming is increasing the prevalence of overwintering ‘zombie’ fires, which are expected to occur primarily in peatlands, undermining carbon storage through deep burning of organic soils. We visited overwintering fires in Northwest Territories, Canada, and Interior Alaska, United States, and present field measurements of where overwintering fires are burning in the landscape and their impact on combustion severity and forest regeneration. Combustion severity hotspots did not generate overwintering, but peat and woody biomass smouldering both supported overwintering, leading to wintertime smouldering in both treed peatlands and upland forests. These findings create challenges for fire managers and uncertainty about carbon emissions, but forest regeneration was not compromised. Field measurements of fires burning over winter at 20 sites in the Northwest Territories of Canada and in Alaska find that such fires occur in both peatlands and upland forests, and provide information on the ecological conditions and effects of such fires compared to single-season burns.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"9 4","pages":"559-564"},"PeriodicalIF":13.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677820","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}
Stefan Pinkert, Nina Farwig, Akito Y. Kawahara, Walter Jetz
{"title":"Global hotspots of butterfly diversity are threatened in a warming world","authors":"Stefan Pinkert, Nina Farwig, Akito Y. Kawahara, Walter Jetz","doi":"10.1038/s41559-025-02664-0","DOIUrl":"https://doi.org/10.1038/s41559-025-02664-0","url":null,"abstract":"<p>Insects are in decline and threatened by climate change, yet lack of globally comprehensive information limits the understanding and management of this crisis. Here we uncover a strong concentration of butterfly diversity in rare and rapidly shrinking high-elevation climates. Integrating comprehensive phylogenetic and geographic range data for 12,119 species, we find that global centres of butterfly richness, range rarity and phylogenetic diversity are unusually concentrated in tropical and subtropical mountain systems. Two-thirds of the assessed species are primarily mountain dwelling and mountains hold 3.5 times more butterfly hotspots (top 5%) than lowlands. These hotspots only partially overlap with those of ants, terrestrial vertebrates and vascular plants (14–36%), while butterfly diversity is uniquely concentrated above 2,000 m elevation. We project that up to 64% of the temperature niche space of butterflies in tropical realms will erode by 2070, with the geographically restricted temperature conditions of mountains potentially turning these from refugia to traps for butterfly diversity. Our study identifies critical conservation priorities for butterflies and underscores the need for quantitative global assessments of at least select insect groups to help mitigate biodiversity loss in a rapidly warming world.</p>","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"9 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677823","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}
Laura E. Dee, Steve J. Miller, Kate J. Helmstedt, Kate S. Boersma, Stephen Polasky, Peter B. Reich
{"title":"Author Correction: Quantifying disturbance effects on ecosystem services in a changing climate","authors":"Laura E. Dee, Steve J. Miller, Kate J. Helmstedt, Kate S. Boersma, Stephen Polasky, Peter B. Reich","doi":"10.1038/s41559-025-02677-9","DOIUrl":"10.1038/s41559-025-02677-9","url":null,"abstract":"","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"9 4","pages":"735-735"},"PeriodicalIF":13.9,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41559-025-02677-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ecological novelty is the new norm on our planet","authors":"Anna Walentowitz","doi":"10.1038/s41559-025-02668-w","DOIUrl":"10.1038/s41559-025-02668-w","url":null,"abstract":"A global analysis of altered species compositions and climate change reveals the extent to which ecosystems, including in protected areas and biodiversity hotspots, are exposed to novel conditions due to anthropogenic forces.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"9 4","pages":"539-540"},"PeriodicalIF":13.9,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618429","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}