Molecular Ecology最新文献_第2页

Wolbachia Host Shifts and Widespread Occurrence of Reproductive Manipulation Loci in European Butterflies. 欧洲蝴蝶沃尔巴克氏体寄主转移和繁殖操纵基因座的广泛发生。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-08 DOI: 10.1111/mec.70125

Eric Toro-Delgado, Dominik R Laetsch, Alex Hayward, Gerard Talavera, Konrad Lohse, Roger Vila

{"title":"Wolbachia Host Shifts and Widespread Occurrence of Reproductive Manipulation Loci in European Butterflies.","authors":"Eric Toro-Delgado, Dominik R Laetsch, Alex Hayward, Gerard Talavera, Konrad Lohse, Roger Vila","doi":"10.1111/mec.70125","DOIUrl":"https://doi.org/10.1111/mec.70125","url":null,"abstract":"Wolbachia is the most frequent bacterial endosymbiont of arthropods and nematodes. Although it is mostly vertically transmitted, from parent to offspring through the egg cytoplasm, horizontal transfer of Wolbachia is thought to be common over evolutionary timescales. However, the relative frequency of each transmission mechanism has not been studied systematically in closely related species. Additionally, while Wolbachia is generally regarded as a reproductive manipulator, it is unclear how frequently the symbiont induces such effects. In this study, we investigated the presence, phenotypes and phylogenetic relationships among Wolbachia strains in whole genome sequence data for 18 European butterfly sister-species pairs. We find that sister-species share Wolbachia strains more often than random species pairs and that the probability of strain sharing is higher for younger pairs of host species, especially those with greater range overlap. We also find that split times between Wolbachia strains that infect the same sister-species pair generally pre-date host divergence, ruling out co-divergence in favour of horizontal transfer. However, some strains are younger than the mitochondrial split times of their hosts, so introgressive transfer cannot be ruled out in some cases. In addition, all newly assembled Wolbachia genomes contained putative homologues of genes associated with cytoplasmic incompatibility and male killing. This supports the potential for reproductive manipulation in Wolbachia strains infecting European butterflies, which until now was only inferred from mitochondrial diversity patterns. Our results show that horizontal and introgressive transfer of Wolbachia are frequent even between recently speciated host taxa, suggesting the symbiont's turnover rate is higher than had been inferred previously from surveys of distantly related hosts.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70125"},"PeriodicalIF":3.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249138","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

Eco-Evolutionary Genomics Reveal Mountain Range-Specific Adaptation and Intraspecific Variation in Vulnerability to Climate Change of Alpine Endemics. 生态进化基因组学揭示高山特有物种对气候变化的适应性和种内变异。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-07 DOI: 10.1111/mec.70113

Ewelina Klichowska, Anna Wróbel, Arkadiusz Nowak, Marcin Nobis

{"title":"Eco-Evolutionary Genomics Reveal Mountain Range-Specific Adaptation and Intraspecific Variation in Vulnerability to Climate Change of Alpine Endemics.","authors":"Ewelina Klichowska, Anna Wróbel, Arkadiusz Nowak, Marcin Nobis","doi":"10.1111/mec.70113","DOIUrl":"https://doi.org/10.1111/mec.70113","url":null,"abstract":"Alpine plants restricted to rocky habitats exhibit intraspecific diversification due to range fragmentation during Holocene warming, complicating predictions of their climate vulnerability. A lack of understanding of eco-evolutionary mechanisms driving their response to climate change results in ineffective conservation efforts. To uncover the genomic basis of their diversification and explain spatial patterns of their vulnerability, we combine landscape genomics and species distribution modelling. Our model, the Campanula lehmanniana complex, occurs in three distinct central Asian mountain ranges, considered both a biodiversity hotspot and a vascular plant diversity darkspot. Genome-environment association confirmed the adaptive basis of intraspecific diversification, driven by numerous loci of small effect. Genomic and ecological data indicate mountain range-specific climate sensitivity driven by altitude, temperature and precipitation. The cold-dry adapted group from Zeravshan-Hissar Mts will face niche decline but show a higher degree of preadaptation to future climate, while the temperate-humid group from Tian Shan shows an opposite response, with a higher risk of maladaptation despite predicted niche expansion. Maladapted populations at northern margins may require an influx of adaptive variation to cope with predicted changes. However, limited landscape connectivity between island-like habitats, combined with long migration distances required to minimise genotype-environment disruption, highlights the role of human-assisted migration in enabling evolutionary rescue. These results underscore the need to facilitate gene flow from pre- to maladapted populations and the importance of population-specific approaches to inform effective conservation strategies in heterogeneous mountain ecosystems. The results may be relevant to numerous Central Asian mountain species that show similar phylogeographic patterns.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70113"},"PeriodicalIF":3.9,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237461","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

Regional Species Pools Drive the Transition Rate of Soil Bacterial Specialisation. 区域物种池驱动土壤细菌专门化转换率。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-06 DOI: 10.1111/mec.70133

Beibei Chen, Hao Wang, Xiaofeng Song, Jiai Liu, Hang Gao, Yi Hui, Chunling Liang, Sen Du, Wenfeng Chen, Sanfeng Chen, Gehong Wei, Shuo Jiao

{"title":"Regional Species Pools Drive the Transition Rate of Soil Bacterial Specialisation.","authors":"Beibei Chen, Hao Wang, Xiaofeng Song, Jiai Liu, Hang Gao, Yi Hui, Chunling Liang, Sen Du, Wenfeng Chen, Sanfeng Chen, Gehong Wei, Shuo Jiao","doi":"10.1111/mec.70133","DOIUrl":"https://doi.org/10.1111/mec.70133","url":null,"abstract":"Niche breadth variation represents a kind of evolutionary trade-off among traits on resource utility and stress tolerance, which constrains the taxa not to be widely distributed. Regional species pools provide a reservoir of genetic material for organisms with different niche breadths, yet their role in niche breadth variation remains unclear. Here we conducted a large-scale soil survey across China, including agricultural, forest, grassland, and wetland soils, to explore how the regional species pool influences bacterial niche breadth variation, specifically, the transition between generalists (wider niche breadth) and specialists (narrower niche breadth), and further examined functional traits of frequently transitioning taxa. We found that generalists decreased bacterial beta-diversity, while specialists enhanced bacterial beta-diversity. Regional species pools were the primary factors affecting the transition rate from generalists to specialists in agricultural and natural ecosystems. In contrast, the reverse transition rate from specialists to generalists was predominantly influenced by soil pH in agricultural fields, standardised phylogenetic diversity in forests and wetlands, and soil moisture in grasslands. Additionally, the phylotypes transitioning from natural generalists to agricultural specialists were enriched in quorum sensing genes, the biosynthesis of microbial cell constituents' genes, as well as starch metabolism and C-fixation genes, compared to those transitioning from natural specialists to agricultural generalists. Collectively, our study demonstrates that regional species pools play a crucial role in shaping the variation in niche breadth among soil microbes, representing a fundamental force in the formation of highly specialised microbial communities.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70133"},"PeriodicalIF":3.9,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237459","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

Experimental Validation of Genome-Environment Associations in Arabidopsis. 拟南芥基因组与环境关联的实验验证。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-06 DOI: 10.1111/mec.70129

Yuxin Luo, Claire M Lorts, Erica H Lawrence-Paul, Jesse R Lasky

{"title":"Experimental Validation of Genome-Environment Associations in Arabidopsis.","authors":"Yuxin Luo, Claire M Lorts, Erica H Lawrence-Paul, Jesse R Lasky","doi":"10.1111/mec.70129","DOIUrl":"https://doi.org/10.1111/mec.70129","url":null,"abstract":"Identifying the genetic basis of local adaptation is a key goal in evolutionary biology. Allele frequency clines along environmental gradients, known as genotype-environment associations (GEA), are often used to detect potential loci causing local adaptation but are rarely followed by experimental validation. Here, we tested loci identified in three moisture-related GEA studies on Arabidopsis. We studied 42 GEA-identified genes using t-DNA knockout lines under drought and tested effects on flowering time, an adaptive trait, and genotype-by-environment (GxE) interactions for performance and fitness. In total, 16/42 genes had significant effects on traits involved in local adaptation or performance responses to the environment. We found that wrky38 mutants had significant GxE effects for fitness; lsd1 plants had a significant GxE effect for flowering time, and 11 genes showed flowering time effects with no drought interaction. However, most GEA candidates did not exhibit GxE. In the follow-up experiments, wrky38 caused decreased stomatal conductance and specific leaf area under drought, indicating potentially adaptive drought avoidance. Additionally, GEA identified natural putative LoF variants of WRKY38 associated with dry environments, as well as alleles associated with variation in LSD1 expression. While only a few GEA-identified genes were validated for GxE interactions for fitness, we likely overlooked some genes because experiments might not well represent natural environments and t-DNA insertions might not well represent natural alleles. Nevertheless, GEAs apparently identified some genes contributing to local adaptation. GEA and follow-up experiments are straightforward to implement in model systems and demonstrate prospects for GEA discovery of new local adaptations.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70129"},"PeriodicalIF":3.9,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237514","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

Soil Microbial Blueprint: Predicting Soil Dominant Bacterial Genera Distribution Across Australia. 土壤微生物蓝图：预测澳大利亚土壤优势细菌属分布。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-04 DOI: 10.1111/mec.70135

Mingming Du, Peipei Xue, Budiman Minasny, Alex McBratney, Mario Fajardo Pedraza, Vanessa Pino, Patrice de Caritat, JiZheng He, Qinglin Chen, Andrew Bissett

{"title":"Soil Microbial Blueprint: Predicting Soil Dominant Bacterial Genera Distribution Across Australia.","authors":"Mingming Du, Peipei Xue, Budiman Minasny, Alex McBratney, Mario Fajardo Pedraza, Vanessa Pino, Patrice de Caritat, JiZheng He, Qinglin Chen, Andrew Bissett","doi":"10.1111/mec.70135","DOIUrl":"https://doi.org/10.1111/mec.70135","url":null,"abstract":"Soil bacteria play a crucial role in soil processes, such as carbon sequestration and nutrient cycling. While soil bacterial communities and their interactions with pedo-climatic factors have been well documented, most studies typically focus on broad taxonomic levels, leaving distribution and responses at the genus level unexplored. This study optimized machine learning models to predict the distribution of dominant bacterial genera across Australia on a comprehensive dataset of 1971 topsoil samples. Our high-resolution digital maps (~1 km resolution) reveal four distinct distribution patterns for the dominant bacterial genera: coastal or inland enriched patterns and latitude-related patterns. Each genus exhibited unique responses to critical factors, including temperature, precipitation, soil organic carbon (SOC), and pH. Notably, our findings highlight the importance of genus-level analysis, as bacterial genera within the same phylum can respond markedly differently to pedo-climatic conditions. Intensive land use significantly homogenized bacteria composition and increased the relative abundance of Rubrobacter, RB41, Microvirga, and Sphingomonas. Overall, this study enhances our understanding of bacterial macroecological trends and offers insights for more precise interventions to improve soil health and resilience against environmental changes.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70135"},"PeriodicalIF":3.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224856","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

Molecular Evidence of Introgression Between Water Frog Species (Anura: Telmatobiidae) in the High Andes. 安第斯山脉高海拔地区水蛙物种间渗透的分子证据（无尾目：水蛙科）。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-03 DOI: 10.1111/mec.70122

Pablo Fibla, Noemí Rojas-Hernández, Marco A Méndez, David Véliz

{"title":"Molecular Evidence of Introgression Between Water Frog Species (Anura: Telmatobiidae) in the High Andes.","authors":"Pablo Fibla, Noemí Rojas-Hernández, Marco A Méndez, David Véliz","doi":"10.1111/mec.70122","DOIUrl":"https://doi.org/10.1111/mec.70122","url":null,"abstract":"Contact zones are classical natural laboratories to study speciation. Several evolutionary outcomes are expected from hybridisation depending on the degree of reproductive isolation, ranging from the formation of hybrid swarms in early stages of speciation to the reinforcement of species differences when speciation is complete. The genus Telmatobius is a high Andean, diverse, but poorly known group of neotropical frogs. Although hybridisation between diverged species is frequent in amphibians, it has not been observed in this group. Here, we studied hybridisation processes among three neighbouring Telmatobius species that inhabit different altitudes in the same desertic basin using nuDNA SNP and mitochondrial DNA data. The results suggest that the Chilean population of Telmatobius peruvianus has hybridised in different degrees with the species T. pefauri and T. marmoratus. We detected mitochondrial and nuclear introgression from T. peruvianus to T. pefauri and what appears to be historical introgression between T. marmoratus and T. peruvianus. No first-generation hybrids nor parental genotypes were detected in admixed localities, suggesting that the inferred hybridisation processes did not occur recently and several generations of backcrossing have passed in geographical isolation. Instead of representing stable hybrid zones, hybrid populations show a degree of genetic differentiation from parental populations. In this group of amphibians, nearly 2 million years of allopatric divergence have not been enough to develop reproductive isolation between diverged species.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70122"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224779","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

Inbreeding Depression Across Multiple Life-History Traits in a Long-Lived Mammal. 一种长寿哺乳动物多种生活史特征的近亲繁殖抑制。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-03 DOI: 10.1111/mec.70123

Léa Auclair, Cécile Vanpé, Guillaume Chapron, Pierre-Yves Quenette, Alexandre Robert

{"title":"Inbreeding Depression Across Multiple Life-History Traits in a Long-Lived Mammal.","authors":"Léa Auclair, Cécile Vanpé, Guillaume Chapron, Pierre-Yves Quenette, Alexandre Robert","doi":"10.1111/mec.70123","DOIUrl":"https://doi.org/10.1111/mec.70123","url":null,"abstract":"Inbreeding depression is widely recognised as a near-universal phenomenon of high conservation concern, particularly as wild populations continue to decline. However, most research to date has focused on early life stages, leaving later-life effects comparatively understudied, especially for wild populations of long-lived species. The Pyrenean brown bear (Ursus arctos), characterised by a small population, high levels of inbreeding and conflicts with human activities, embodies the conservation challenges faced by many large mammals. We analysed 27 years of monitoring data to quantify inbreeding depression across multiple life stages on survival, reproduction and dispersal. Our results reveal strong inbreeding depression effects, particularly in early life stages, including a reduction in litter size and in natal dispersal distance. In adults, more inbred mothers exhibit lower cub survival. The cumulative effect of inbreeding, as measured by lifetime breeding success, also shows a negative impact. These findings highlight the necessity of assessing inbreeding depression across the entire life cycle to accurately evaluate its threat to population dynamics and viability. Such comprehensive assessments will become increasingly essential for wild plant and animal populations constrained by habitat destruction, human-wildlife conflict and harvesting pressures.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70123"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224776","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

Contrasting Genomic Responses of Hydrothermal Vent Animals and Their Symbionts to Population Decline After the Hunga Volcanic Eruption. 匈牙利火山爆发后热液喷口动物及其共生体对种群下降的基因组响应对比

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-03 DOI: 10.1111/mec.70126

Corinna Breusing, Michelle A Hauer, Ian V Hughes, Johann S Becker, David Casagrande, Brennan T Phillips, Peter R Girguis, Roxanne A Beinart

{"title":"Contrasting Genomic Responses of Hydrothermal Vent Animals and Their Symbionts to Population Decline After the Hunga Volcanic Eruption.","authors":"Corinna Breusing, Michelle A Hauer, Ian V Hughes, Johann S Becker, David Casagrande, Brennan T Phillips, Peter R Girguis, Roxanne A Beinart","doi":"10.1111/mec.70126","DOIUrl":"https://doi.org/10.1111/mec.70126","url":null,"abstract":"Genetic bottlenecks are evolutionary events that reduce the effective size and diversity of natural populations, often limiting a population's ability to adapt to environmental change. Given the accelerating human impact on ecosystems worldwide, understanding how populations evolve after a genetic bottleneck is becoming increasingly important for species conservation. Ash deposits from the 2022 Hunga volcanic eruption in the Southwest Pacific led to a drastic decline of animal symbioses associated with hydrothermal vents in this region, allowing insights into the effects of population bottlenecks in the deep sea. Here, we applied metagenomic sequencing to pre- and post-eruption samples of mollusc-microbial symbioses from the Lau Basin to investigate patterns of genetic variation and effective population size. Our data indicate that animal host populations currently show only small changes in genome-wide diversity but in most cases experienced a long-term decline in effective size that was likely intensified by the volcanic impact. By contrast, host-associated symbiont populations exhibited a notable decrease in genomic variation, including potential loss of certain habitat-specific strains. However, detection of environmental sequences resembling mollusc symbionts suggests that lost host-associated symbiont diversity might be recovered from the free-living symbiont pool. The differences between host and symbiont populations might be related to their contrasting genetic structures and pre-existing levels of connectivity, although the full extent of population bottlenecks in the host animals might only be recognisable after a few generations. These results add to our understanding of the evolutionary dynamics of animal-microbe populations following a natural disturbance and help assess their resilience to both natural and anthropogenic impacts.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70126"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145211224","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

Harnessing Landscape Genomics to Evaluate Genomic Vulnerability and Future Climate Resilience in an East Asia Perennial. 利用景观基因组学评估东亚多年生植物的基因组脆弱性和未来气候适应能力。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-03 DOI: 10.1111/mec.70128

Li Feng, Cong-Ying Wang, Li-Pan Zhou, Yi-Han Wang, Jing Wang, Zheng-Yuan Wang, Tao Zhou, Xu-Mei Wang

{"title":"Harnessing Landscape Genomics to Evaluate Genomic Vulnerability and Future Climate Resilience in an East Asia Perennial.","authors":"Li Feng, Cong-Ying Wang, Li-Pan Zhou, Yi-Han Wang, Jing Wang, Zheng-Yuan Wang, Tao Zhou, Xu-Mei Wang","doi":"10.1111/mec.70128","DOIUrl":"https://doi.org/10.1111/mec.70128","url":null,"abstract":"In this era of rapid climate change, understanding the adaptive potential of organisms is imperative for buffering biodiversity loss. Genomic forecasting provides invaluable insights into population vulnerability and adaptive potential under diverse climatic conditions, thereby facilitating management interventions and bolstering shaping species-specific germplasm conservation strategies. We primarily employed landscape genomics approaches, leveraging single-nucleotide polymorphisms obtained through whole-genome resequencing of 201 individuals across 43 Rheum palmatum complex populations, to pinpoint adaptive variation and its significance in the context of future climates, delineate seed zones, and establish guidelines for ex situ germplasm conservation. The species complex exhibited strong signatures of local adaptation and differential genomic vulnerabilities across its distribution range, with eastern lineage populations facing significant maladaptation risks under future climate scenarios. Using diverse datasets of putatively adaptive loci and climate change scenarios, we delineated three distinct seed zones within the species' range, estimated varying sample sizes per zone to capture most adaptive diversity, and predicted shifts in seed zone centroids ranging from 48.3 to 359.3 km from historical distributions to mitigate climate change impacts. Collectively, our findings underscore the importance of integrating genomic and environmental data to forecast the adaptive trajectory of an East Asian perennial under anticipated climate changes, guide seed zone delineation for germplasm conservation and enhance population resilience. These results provide a blueprint for designing targeted conservation strategies and restoration plans in other imperilled species.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70128"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224770","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

Feather Microbiota Landscapes: Biogeography and Phenology Shape Feather Microbiota Traits in a Migratory Seabird in a Subantarctic Ecosystem. 羽毛微生物群景观：亚南极生态系统中迁徙海鸟羽毛微生物群特征的生物地理学和物候学。

IF 3.9 1区生物学

Molecular Ecology Pub Date : 2025-10-03 DOI: 10.1111/mec.70114

Manuel Ochoa-Sánchez, Eliana Paola Acuña-Gómez, Claudio A Moraga, Jorge Acevedo, Pedro Valenzuela, Luis E Eguiarte, Valeria Souza

{"title":"Feather Microbiota Landscapes: Biogeography and Phenology Shape Feather Microbiota Traits in a Migratory Seabird in a Subantarctic Ecosystem.","authors":"Manuel Ochoa-Sánchez, Eliana Paola Acuña-Gómez, Claudio A Moraga, Jorge Acevedo, Pedro Valenzuela, Luis E Eguiarte, Valeria Souza","doi":"10.1111/mec.70114","DOIUrl":"https://doi.org/10.1111/mec.70114","url":null,"abstract":"It is known that phenological changes (i.e., behavioural and sometimes morphological and physiological traits that repeat annually) influence the wildlife gut microbiota. However, it remains largely unknown to what extent geographic variation could modulate the effect that phenology has on wildlife microbiota. Here, we analysed the feather microbiota in adult Magellanic penguins (Spheniscus magellanicus) and the microbes from samples of nest soil and seawater, using Illumina MiSeq sequencing of bacterial 16S rRNA (V3-V4 variable region) at three phenological stages (courtship, egg-laying and chick-rearing) across five nesting colonies with environmental heterogeneity, in the Magellan Strait, Chile. We found over 67,000 ASVs, most belonging to the bacterial family Moraxellaceae. We detected seven core bacterial genera despite geographic and phenological variation; among them, Psychrobacter had the highest relative abundance. Phenology affected feather microbiota alpha diversity and the relative abundance of selected genera in a colony-specific fashion. Still, it consistently affected feather and nest soil microbial composition, highlighting a phenological microbial succession pattern in penguin feathers and nest soil. From the geographic perspective, we detected three main results in the penguin feather microbiota: (1) alpha diversity was higher in the largest colonies, although only in the chick-rearing stage; (2) a significant distance-decay pattern, in the egg-laying and chick-rearing stages; and (3) compositional clusters that follow the geographic location of each colony. Our results highlight how temporal and environmental heterogeneity shape microbial traits in marine wildlife.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":" ","pages":"e70114"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145224807","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