Pico- and nano-eukaryote community assembly in salinity-gradient lakes: diversity patterns, ecological network and environmental correlates.
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| Názov: | Pico- and nano-eukaryote community assembly in salinity-gradient lakes: diversity patterns, ecological network and environmental correlates. |
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| Autori: | Wang Q; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China., Wang C; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China; College of Ecology and Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China., Chen X; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China., Shen Z; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China., Gong Y; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China., Hu Y; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China., Gao G; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China., Shao K; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address: kqshao@niglas.ac.cn., Tang X; State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 211135, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address: xmtang@niglas.ac.cn. |
| Zdroj: | Environmental research [Environ Res] 2025 Oct 15; Vol. 283, pp. 122199. Date of Electronic Publication: 2025 Jun 19. |
| Spôsob vydávania: | Journal Article |
| Jazyk: | English |
| Informácie o časopise: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE |
| Imprint Name(s): | Publication: <2000- > : Amsterdam : Elsevier Original Publication: New York, Academic Press. |
| Výrazy zo slovníka MeSH: | Lakes*/chemistry , Salinity* , Biodiversity* , Eukaryota*/classification, China ; RNA, Ribosomal, 18S/analysis ; Ecosystem ; Climate Change |
| Abstrakt: | Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Anthropogenic activities and climate change induce large-scale lake shrinkage in arid and semi-arid regions, threatening the structure of microeukaryotic communities. Despite their ecological importance, the diversity, drivers, assembly mechanisms, and ecological functions of these communities-especially pico- and nano-eukaryotes-are poorly understood. We conducted the first systematic study of pico- and nano-eukaryotic diversity, assembly mechanisms, and co-occurrence networks in Xinjiang's salinity-gradient lakes, offering new perspectives for understanding community dynamics in arid ecosystems. We collected 34 samples from five Xinjiang lakes and sequenced the 18S rRNA V4 region. Results revealed a U-shaped pattern in α-diversity for both pico- and nano-eukaryotes with increasing salinity, more pronounced in nano-eukaryotes. The two fractions differed significantly in β-diversity across salinity levels. Redundancy analysis (RDA) identified salinity as the key environmental driver of community variation. Both communities were mainly structured by stochastic processes. Pico-eukaryotes exhibited more complex and modular networks, while nano-eukaryotes showed predominantly positive interactions. These findings enhance our understanding of climate impacts on microeukaryotic communities in arid lakes. (Copyright © 2025 Elsevier Inc. All rights reserved.) |
| Contributed Indexing: | Keywords: Arid regions; Assembly mechanism; Co-occurrence network; Nano-eukaryotes; Pico-eukaryotes; Salinity |
| Substance Nomenclature: | 0 (RNA, Ribosomal, 18S) |
| Entry Date(s): | Date Created: 20250620 Date Completed: 20250908 Latest Revision: 20250908 |
| Update Code: | 20250909 |
| DOI: | 10.1016/j.envres.2025.122199 |
| PMID: | 40541901 |
| Databáza: | MEDLINE |
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Nájsť tento článok vo Web of Science | Abstrakt: | Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br />Anthropogenic activities and climate change induce large-scale lake shrinkage in arid and semi-arid regions, threatening the structure of microeukaryotic communities. Despite their ecological importance, the diversity, drivers, assembly mechanisms, and ecological functions of these communities-especially pico- and nano-eukaryotes-are poorly understood. We conducted the first systematic study of pico- and nano-eukaryotic diversity, assembly mechanisms, and co-occurrence networks in Xinjiang's salinity-gradient lakes, offering new perspectives for understanding community dynamics in arid ecosystems. We collected 34 samples from five Xinjiang lakes and sequenced the 18S rRNA V4 region. Results revealed a U-shaped pattern in α-diversity for both pico- and nano-eukaryotes with increasing salinity, more pronounced in nano-eukaryotes. The two fractions differed significantly in β-diversity across salinity levels. Redundancy analysis (RDA) identified salinity as the key environmental driver of community variation. Both communities were mainly structured by stochastic processes. Pico-eukaryotes exhibited more complex and modular networks, while nano-eukaryotes showed predominantly positive interactions. These findings enhance our understanding of climate impacts on microeukaryotic communities in arid lakes.<br /> (Copyright © 2025 Elsevier Inc. All rights reserved.) |
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| ISSN: | 1096-0953 |
| DOI: | 10.1016/j.envres.2025.122199 |