Molecular Ecology最新文献

{"title":"Urbanisation and Host Relatedness Shape Virome Composition in a Widespread, Generalist Carnivore","authors":"Natalie Payne,&nbsp;Desiree Andersen,&nbsp;Cheryl Mollohan,&nbsp;Koenraad Van Doorslaer,&nbsp;Leigh Combrink,&nbsp;Melanie Culver","doi":"10.1111/mec.17681","DOIUrl":"10.1111/mec.17681","url":null,"abstract":"<div>\u0000 \u0000 <p>Urban wildlife species have the potential to serve as links in disease transmission between wildlife, humans and domestic animals at the wildland–urban interface (WUI), contributing to both sustained cross-species transmission of pathogens and the emergence of diseases in susceptible populations. However, the relative roles of host and environmental factors in shaping the composition of pathogen communities in urban wildlife is understudied. In this study, we integrated DNA and RNA virome data with host genomic and GPS datasets to investigate factors shaping virome composition in bobcats (<i>Lynx rufus</i> ) at the WUI in the Tucson Mountains, Arizona, USA. Using a hybrid-capture approach for 31 scats and 17 buccal swabs, we identified multiple viruses that could affect carnivore health at the WUI, including canine parvovirus, feline astrovirus, <i>Felis catus</i> papillomaviruses 2 and 3 and Lyon-IARC polyomavirus. Models of virome composition and distribution of viral taxa indicated contributions of host genetic relatedness and factors relating to urbanisation (such as percentages of urban land cover, road and building densities and distances to roads). Genetic associations with virome compositions were particularly influenced by females. While females exhibit significant isolation by distance, partial Mantel tests revealed a significant correlation between beta diversity and host genetic distance in females only. To our knowledge, this study represents the first assessment of factors shaping virome composition in a wild felid. Our finding of known feline and canine pathogens in bobcats underscores the potential of the WUI to facilitate cross-species transmission between wild and domestic animals.</p>\u0000 </div>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"34 6","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481647","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":"Stomach Microbiome Simplification of a Coral Reef Fish at Its Novel Cold-Range Edge Under Climate Change","authors":"Chloe Hayes,&nbsp;Angus Mitchell,&nbsp;Roger Huerlimann,&nbsp;Jeffrey Jolly,&nbsp;Chengze Li,&nbsp;David J. Booth,&nbsp;Timothy Ravasi,&nbsp;Ivan Nagelkerken","doi":"10.1111/mec.17704","DOIUrl":"10.1111/mec.17704","url":null,"abstract":"<p>Climate-driven range extensions of animals into higher latitudes are often facilitated by phenotypic plasticity. Modifications to habitat preference, behaviour and diet can increase the persistence of range-extending species in novel high-latitude ecosystems. These strategies may be influenced by changes in their gut and stomach microbial communities that are critical to host fitness and potentially adaptive plasticity. Yet, it remains unknown if the gut and stomach microbiome of range-extending species is plastic in their novel ranges to help facilitate these modifications. Here, we categorised stomach microbiome communities of a prevalent range-extending coral reef fish along a 2000-km latitudinal gradient in a global warming hotspot, extending from their tropical core range to their temperate cold range edge. At their cold range edge, the coral reef fish's stomach microbiome showed a 59% decrease in bacterial diversity and a 164% increase in the relative abundance of opportunistic bacteria (<i>Vibrio</i>) compared to their core range. Microbiome diversity was unaffected by fish body size, water temperature, physiology (cellular defence and damage) and habitat type (turf, barren, oyster, kelp and coral) across their range. The observed shifts in microbiome composition suggest dysbiosis and low plasticity of tropical range-extending fishes to novel environmental conditions (e.g., temperate prey and lower seawater temperature) at their novel range edges, which may increase their susceptibility to disease in temperate ecosystems. We conclude that fishes extending their ranges to higher latitudes under ocean warming can experience a simplification (i.e., reduced diversity) of their stomach microbiome, which could restrict their current rate of range extensions or establishment in temperate ecosystems.</p>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"34 7","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mec.17704","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143476183","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":"Not All Bark Beetles Smell the Same: Population-Level Functional Olfactory Polymorphisms in Ips typographus Pheromone Receptor ItypOR33","authors":"Jibin Johny,&nbsp;Souleymane Diallo,&nbsp;Krystyna Nadachowska-Brzyska,&nbsp;Antonioni Acacio Campos Moliterno,&nbsp;Amit Roy,&nbsp;Blanka Kalinová,&nbsp;Ewald Große-Wilde,&nbsp;Fredrik Schlyter","doi":"10.1111/mec.17693","DOIUrl":"10.1111/mec.17693","url":null,"abstract":"<div>\u0000 \u0000 <p>Eurasian spruce bark beetle <i>Ips typographus</i>, a natural part of forest ecosystems, is a major threat to Norway spruce forests during outbreaks. Olfaction plays a crucial role in the survival and range expansion of these beetles, amid forest disturbances and climate change. As the current management strategies are suboptimal for controlling outbreaks, the reverse chemical ecology approaches based on pheromone receptors offer promising alternatives. While the search for pheromone receptors is in progress, recently found chromosomal inversions indicates signs of adaptation in this species. Our attempts to characterise one of the highly expressed odorant receptors, <i>ItypOR33</i>, located in an inversion, led to the discovery of polymorphic variants distributed with similar frequency across 18 European populations. Deorphanizing <i>ItypOR33</i> and its variant <i>ItypOR33a</i> using the <i>Drosophila</i> empty-neuron system (DeNS) revealed <i>ItypOR33</i> tuned to amitinol, a heterospecific pheromone component in <i>Ips</i> spp., whereas its variant tuned to (<i>S</i>)-(−)-ipsenol, a conspecific pheromone component of <i>I. typographus</i>. The <i>in silico</i> approaches revealed the structural basis of variations by predicting putative ligand-binding sites, tunnels and ligand-receptor interactions. However, no sex-specific differences were found in the <i>ItypOR33</i> expression, and its ligand amitinol elicited behavioural and electrophysiological responses. Reporting population-level functional olfactory polymorphisms for the first time in a non-model organism—bark beetles, provides key evidence for further exploring their survival and adaptation in forests. Additionally, these findings indicate potential long-term complexities of managing bark beetles in forests.</p>\u0000 </div>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"34 6","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143476182","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":"Multiple Lineages of Transmissible Neoplasia in the Basket Cockle (C. nuttallii) With Repeated Horizontal Transfer of Mitochondrial DNA","authors":"Marisa A. Yonemitsu,&nbsp;Jordana K. Sevigny,&nbsp;Lauren E. Vandepas,&nbsp;James L. Dimond,&nbsp;Rachael M. Giersch,&nbsp;Helen J. Gurney-Smith,&nbsp;Cathryn L. Abbott,&nbsp;Janine Supernault,&nbsp;Ruth Withler,&nbsp;Peter D. Smith,&nbsp;Sydney A. Weinandt,&nbsp;Fiona E. S. Garrett,&nbsp;Zachary J. Child,&nbsp;Robin Little Wing Sigo,&nbsp;Elizabeth Unsell,&nbsp;Ryan N. Crim,&nbsp;Michael J. Metzger","doi":"10.1111/mec.17682","DOIUrl":"10.1111/mec.17682","url":null,"abstract":"<div>\u0000 \u0000 <p>Transmissible cancers are clonal lineages of neoplastic cells able to infect multiple hosts, spreading through populations in the environment as an infectious disease. Transmissible cancers have been identified in Tasmanian devils, dogs, and bivalves. Several lineages of bivalve transmissible neoplasias (BTN) have been identified in multiple bivalve species. In 2019 in Puget Sound, Washington, USA, disseminated neoplasia was observed in basket cockles (<i>Clinocardium nuttallii</i>), a species that is important to the culture and diet of the Suquamish Tribe as well as other tribes with traditional access to the species. To test whether disseminated neoplasia in cockles is a previously unknown lineage of BTN, a nuclear locus was amplified from cockles from Agate Pass, Washington, and sequences revealed evidence of transmissible cancer in several individuals. We used a combination of cytology and quantitative PCR to screen collections of cockles from 11 locations in Puget Sound and along the Washington coastline to identify the extent of contagious cancer spread in this species. Two BTN lineages were identified in these cockles, with one of those lineages (CnuBTN1) being the most prevalent and geographically widespread. Within the CnuBTN1 lineage, multiple nuclear loci support the conclusion that all cancer samples form a single clonal lineage. However, the mitochondrial alleles in each cockle with CnuBTN1 are different from each other, suggesting mitochondrial genomes of this cancer have been replaced multiple times during its evolution, through horizontal transmission. The identification and analysis of these BTNs are critical for broodstock selection, management practices, and repopulation of declining cockle populations, which will enable continued cultural connection and dietary use of the cockles by Coast Salish Tribes.</p>\u0000 </div>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"34 6","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466401","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":"Selection Over Small and Large Spatial Scales in the Face of High Gene Flow","authors":"Camille Rumberger,&nbsp;Madison Armstrong,&nbsp;Martin Kim,&nbsp;Raquel Ponce,&nbsp;Josue Melendez,&nbsp;Melissa DeBiasse,&nbsp;Serena Caplins,&nbsp;Rachael Bay","doi":"10.1111/mec.17700","DOIUrl":"10.1111/mec.17700","url":null,"abstract":"<p>Local adaptation represents the balance of selection and gene flow. Increasingly, studies find that adaptation can occur on spatial scales much smaller than the scale of dispersal, resulting in balanced polymorphisms within populations. However, microgeographic adaptation might be facilitated or hindered by large-scale environmental heterogeneity, such as across latitude. Marine systems present a special case, as many marine species have high dispersal capacity so that dispersal ‘neighbourhoods’ may encompass environmental heterogeneity over both small and large spatial scales. Here, we leverage fine-scale sampling across the California range of the Pacific purple sea urchin (<i>Strongylocentrotus purpuratus</i>), a species with previous evidence of both local adaptation and extremely high gene flow. We find that despite the complete absence of neutral population structure, satellite-based sea surface temperature and tidal zone are associated with subtle genetic differences among populations, suggesting that balanced polymorphisms can lead to adaptation across both large (latitudinal) and small (subtidal vs. intertidal) scales. In fact, some of the same genetic variants differentiate populations at both spatial scales, potentially because both environmental parameters are related to temperature. Further, we find that genes that are expressed at a single tissue or life history stage are more divergent than expected across both latitudinal and tidal zone comparisons, suggesting that these genes have specific functions that might generate phenotypic variation important for local adaptation. Together, these results suggest that even in species with little population structure, genetic variation can be sorted across varying spatial scales, potentially resulting in local adaptation across complex environmental mosaics.</p>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"34 6","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mec.17700","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447466","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":"Genomic Vulnerability of a Sentinel Mammal Under Climate Change.","authors":"Danielle A Schmidt, Michael A Russello","doi":"10.1111/mec.17688","DOIUrl":"https://doi.org/10.1111/mec.17688","url":null,"abstract":"<p><p>Climate change poses a significant threat to biodiversity, particularly in alpine ecosystems where species have already undergone elevational range shifts. Genomics can be used to estimate the adaptive potential of species, as well as the shift in adaptive genomic composition necessary for populations to adjust to climate change (e.g., genomic offset). Here, we investigated patterns of climate-mediated adaptive genetic variation and predicted the degree of genomic offset under multiple climate change scenarios for a sentinel alpine mammal, the American pika (Ochotona princeps). We collected genome-wide data (29,709 SNPs) from 363 individuals spanning the entire range in western North America and employed genotype-environment association analyses to identify 924 robust outlier SNPs, several of which were linked to genes previously associated with high elevation and hypoxia responses in various pika species (Ochotonidae). Adaptive genomic variation was most strongly influenced by mean warmest month temperature, followed by precipitation of the coldest quarter. Spatial patterns of genomic offset were heterogeneous, significantly predicted by levels of adaptive genetic variation, elevation and latitude. Sites within the Northern Rocky Mountains exhibited the highest genomic offset under projected climate change despite possessing high levels of adaptive genetic variation. As such, while our study provides an example of how genomic data can be used to explore the potential consequences of climate change, it further highlights the need for careful consideration of genomic offset values within their proper ecological context.</p>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e17688"},"PeriodicalIF":4.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447536","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":"Integrative Genomics Refines Tissues, Candidate Genes and Putative Regulatory Links Involved in the Humic Adaptation of Keystone Freshwater Fish.","authors":"M Yu Ozerov, K Noreikiene, K Taube, R Gross, A Vasemägi","doi":"10.1111/mec.17698","DOIUrl":"https://doi.org/10.1111/mec.17698","url":null,"abstract":"<p><p>Although population genomics approaches have been successful in identifying regions of the genome shaped by natural selection, progress in dissecting the molecular mechanisms of adaptive variants and traits has been slow. By integrating multi-tissue (gill, spleen, olfactory rosette, whole eye, and liver) transcriptomes from 16 wild Eurasian perch (Perca fluviatilis) populations and previously identified footprints of selection, we prioritise tissues, candidate genes, and putative SNP-gene expression associations potentially involved in the humic adaptation of this keystone freshwater fish. Over 5000 differentially expressed genes (DEGs) were discovered across the five tissues. A significant excess of outlier SNPs among DEGs found in the gill and spleen tissues indicated their potential involvement in humic adaptation. Next, we identified 2640 cis-eQTLs, and observed significant enrichment of outliers among expression-associated SNPs (eSNPs) in spleen and olfactory rosette tissues, as well as in all tissues combined. Several eQTLs were found in the regions showing the strongest signals of selection, which also harboured DEGs (chr. 5: PLAGL2, chr. 7: PPP1R8, TCHH). Thus, our integrative analyses enabled us to pinpoint specific organs that potentially play a key role in adaptation, prioritise candidate genes under divergent selection based on their expression patterns, and identify links between SNPs and transcript abundance variation. We expect that by combining evolutionary and functional genomics perspectives this work provides a practical framework for understanding the genetic basis of phenotypic diversification and adaptation across a wide range of species.</p>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e17698"},"PeriodicalIF":4.5,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439306","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":"Genetic Admixture and Novel Host Shifts in a Parasitic Plant, Orobanche boninsimae (Orobanchaceae), Endemic to the Ogasawara Islands","authors":"Akihiro Nishimura,&nbsp;Koji Takayama","doi":"10.1111/mec.17687","DOIUrl":"10.1111/mec.17687","url":null,"abstract":"<div>\u0000 \u0000 <p>Parasitic plants depend on other plants for nutrients and water and have undergone evolutionary processes tightly linked to their host range. As parasitic adaptations specialise host range, host shifts between parasite lineages are considered essential events that can lead to genetic differentiation and speciation. A thorough examination of population genealogy covering the entire host range is imperative to comprehend the impact of host-shift evolution on parasitic plant species diversity. Therefore, we investigated the population genetic structure of <i>Orobanche boninsimae</i> (Orobanchaceae), an endemic parasitic plant in the Bonin (Ogasawara) Islands. The host species of <i>O. boninsimae</i> are entirely distinct from those of other <i>Orobanche</i> species and show differences between geographically isolated islands, even though the host species coexist in some localities. Genetic differentiation was observed among populations from different islands, corresponding to variations in the host range of <i>O. boninsimae</i>. Demographic analysis supported a scenario in which populations on the southern island emerged through the admixture of populations parasitic on the different host species from the northern islands. This suggests a progressive colonisation process, wherein continental ancestors established in the northern islands underwent a host shift, followed by the migration of a lineage to the southern island. Notably, host shift across islands may have occurred through the admixture of populations. These findings provide a foundation for elucidating the roles of host plants and geographical isolation in the speciation of parasitic plants and enhance our understanding of the mechanisms driving parasitic plant diversification.</p>\u0000 </div>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"34 6","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439276","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":"A Test of the Long-Term Efficiency of Genetic Rescue With Drosophila melanogaster.","authors":"Noelia Pérez-Pereira, Daniel Kleinman-Ruiz, Aurora García-Dorado, Humberto Quesada, Armando Caballero","doi":"10.1111/mec.17690","DOIUrl":"https://doi.org/10.1111/mec.17690","url":null,"abstract":"<p><p>Genetic rescue is considered a promising but underutilised conservation strategy to mitigate inbreeding depression and restore genetic diversity. Yet, empirical evidence supporting its long-term efficacy is limited to studies investigating short-term effects. Here, we conducted an experiment with Drosophila to test the long-term efficiency of genetic rescue across generations. A wild population was captured to found a genetically diverse mass-bred base population (BP) in the laboratory. Smaller populations of 50 individuals each (N50) were then founded from the BP and maintained for 31 generations. Three sets of lines of eight individuals each were founded from these N50 populations: non-rescued (control), rescued with BP males, and rescued with N50 males. These lines were maintained for 33 generations. Pupae productivity analysis showed substantial purging in N50 populations and adaptation to laboratory conditions in the BP. Rescued-BP lines showed a higher productivity and lower extinction rates compared to non-rescued lines. Whole-genome sequencing of individuals from a non-rescued line and a rescued-BP line revealed fewer deleterious alleles, lower genetic diversity, and higher inbreeding in the rescued line, suggesting efficient rescue. Our results enlighten the importance of introducing new genetic variation allowing for adaptation to increase survival even in small populations despite the simultaneous introduction of an inbreeding load, particularly when facing global changes affecting environmental conditions of both donor and recipient populations.</p>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e17690"},"PeriodicalIF":4.5,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439273","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":"An Evolutionary Mosaic Challenges Traditional Monitoring of a Foundation Species in a Coastal Environment-The Baltic Fucus vesiculosus.","authors":"Ricardo T Pereyra, Alexandra Kinnby, Alan Le Moan, Olga Ortega-Martinez, Per R Jonsson, Stefania Piarulli, Matthew I M Pinder, Mats Töpel, Pierre De Wit, Carl André, Halvor Knutsen, Kerstin Johannesson","doi":"10.1111/mec.17699","DOIUrl":"https://doi.org/10.1111/mec.17699","url":null,"abstract":"<p><p>During periods of environmental change, genetic diversity in foundation species is critical for ecosystem function and resilience, but it remains overlooked in environmental monitoring. In the Baltic Sea, a key species for monitoring is the brown seaweed Fucus vesiculosus, which forms sublittoral 3D habitats providing shelter and food for fish and invertebrates. Ecological distribution models predict a significant loss of Baltic F. vesiculosus due to ocean warming, unless populations can adapt. Genetic variation and recombination during sexual reproduction are essential for adaptation, but studies have revealed large-scale clonal reproduction within the Baltic Sea. We analysed genome-wide single nucleotide polymorphism (SNP) data from the east Atlantic, the \"Transition zone,\" and the Baltic Sea, and found a mosaic of divergent lineages in the Baltic Sea, contrasting an outside dominance of a few genetic groups. We determined that the previously described endemic species Fucus radicans is predominantly a large female clone of F. vesiculosus in its northern Baltic distribution. In the two Estonian sites, however, individuals earlier referred to as F. radicans are sexually and reproductively isolated from Baltic F. vesiculosus, revealing a separate lineage that may have diverged long before the formation of the Baltic Sea. Monitoring Baltic Fucus without considering this genetic complexity will fail to prioritise populations with adaptive potential to new climate conditions. From our genomic data, we can extract informative and diagnostic genetic markers that differentiate major genetic entities. Such a SNP panel will provide a straightforward tool for spatial and temporal monitoring and informing management decisions and actions.</p>","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e17699"},"PeriodicalIF":4.5,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143432036","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}