Emma Jamon-Haon, Philippe Cuny, Alix Rossi, Léa Sylvi, Maud Fiard, Cécile Militon
{"title":"红树林沉积物中原核生物的全球生物地理学:来自16S rDNA元条形码的空间格局和生态学见解","authors":"Emma Jamon-Haon, Philippe Cuny, Alix Rossi, Léa Sylvi, Maud Fiard, Cécile Militon","doi":"10.1016/j.ecss.2025.109485","DOIUrl":null,"url":null,"abstract":"<div><div>The global asymmetry in mangrove floristic diversity is well-documented, yet the biogeography of sediment microbial communities remains overlooked. This meta-analysis of 16S rDNA datasets from 12 countries investigates the diversity, composition, and distribution of prokaryotic communities across mangrove bioregions. We found no significant correlation between tree richness and microbial diversity, but identified a microbial hotspot in the Indo-West Pacific. Microbiota associated with different mangroves displayed opposite latitudinal diversity gradients and beta-dispersions. Random forest models highlighted key microbial taxa, while shared OTUs across bioregions suggested a core mangrove microbiota. Importantly, substantial heterogeneity in microbiota composition was strongly influenced by methodological factors such as molecular protocols used in the different studies. While these variations limit direct dataset comparisons, they underscore the urgent need for more consistent and harmonized sampling and sequencing approaches in future research. Despite these challenges, the observed distance-decay relationship supports the role of dispersal barriers in shaping mangrove sediment microbiota. This study provides insights into the potential influence of environmental factors, beyond plant diversity alone, in structuring prokaryotic communities in mangrove sediments. By acknowledging methodological biases and proposing standardized frameworks for future research, we aim to refine our understanding of mangrove microbiome dynamics and their ecological implications.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"325 ","pages":"Article 109485"},"PeriodicalIF":2.6000,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Global biogeography of prokaryotes in mangrove sediments: Spatial patterns and ecological insights from 16S rDNA metabarcoding\",\"authors\":\"Emma Jamon-Haon, Philippe Cuny, Alix Rossi, Léa Sylvi, Maud Fiard, Cécile Militon\",\"doi\":\"10.1016/j.ecss.2025.109485\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The global asymmetry in mangrove floristic diversity is well-documented, yet the biogeography of sediment microbial communities remains overlooked. This meta-analysis of 16S rDNA datasets from 12 countries investigates the diversity, composition, and distribution of prokaryotic communities across mangrove bioregions. We found no significant correlation between tree richness and microbial diversity, but identified a microbial hotspot in the Indo-West Pacific. Microbiota associated with different mangroves displayed opposite latitudinal diversity gradients and beta-dispersions. Random forest models highlighted key microbial taxa, while shared OTUs across bioregions suggested a core mangrove microbiota. Importantly, substantial heterogeneity in microbiota composition was strongly influenced by methodological factors such as molecular protocols used in the different studies. While these variations limit direct dataset comparisons, they underscore the urgent need for more consistent and harmonized sampling and sequencing approaches in future research. Despite these challenges, the observed distance-decay relationship supports the role of dispersal barriers in shaping mangrove sediment microbiota. This study provides insights into the potential influence of environmental factors, beyond plant diversity alone, in structuring prokaryotic communities in mangrove sediments. By acknowledging methodological biases and proposing standardized frameworks for future research, we aim to refine our understanding of mangrove microbiome dynamics and their ecological implications.</div></div>\",\"PeriodicalId\":50497,\"journal\":{\"name\":\"Estuarine Coastal and Shelf Science\",\"volume\":\"325 \",\"pages\":\"Article 109485\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Estuarine Coastal and Shelf Science\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0272771425003634\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Estuarine Coastal and Shelf Science","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272771425003634","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Global biogeography of prokaryotes in mangrove sediments: Spatial patterns and ecological insights from 16S rDNA metabarcoding
The global asymmetry in mangrove floristic diversity is well-documented, yet the biogeography of sediment microbial communities remains overlooked. This meta-analysis of 16S rDNA datasets from 12 countries investigates the diversity, composition, and distribution of prokaryotic communities across mangrove bioregions. We found no significant correlation between tree richness and microbial diversity, but identified a microbial hotspot in the Indo-West Pacific. Microbiota associated with different mangroves displayed opposite latitudinal diversity gradients and beta-dispersions. Random forest models highlighted key microbial taxa, while shared OTUs across bioregions suggested a core mangrove microbiota. Importantly, substantial heterogeneity in microbiota composition was strongly influenced by methodological factors such as molecular protocols used in the different studies. While these variations limit direct dataset comparisons, they underscore the urgent need for more consistent and harmonized sampling and sequencing approaches in future research. Despite these challenges, the observed distance-decay relationship supports the role of dispersal barriers in shaping mangrove sediment microbiota. This study provides insights into the potential influence of environmental factors, beyond plant diversity alone, in structuring prokaryotic communities in mangrove sediments. By acknowledging methodological biases and proposing standardized frameworks for future research, we aim to refine our understanding of mangrove microbiome dynamics and their ecological implications.
期刊介绍:
Estuarine, Coastal and Shelf Science is an international multidisciplinary journal devoted to the analysis of saline water phenomena ranging from the outer edge of the continental shelf to the upper limits of the tidal zone. The journal provides a unique forum, unifying the multidisciplinary approaches to the study of the oceanography of estuaries, coastal zones, and continental shelf seas. It features original research papers, review papers and short communications treating such disciplines as zoology, botany, geology, sedimentology, physical oceanography.