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The microeukaryotic community in lake ecosystems of the Inner Mongolia Plateau, China

ABSTRACT: The microeukaryotic community in lake ecosystems of the Inner Mongolia Plateau, China Raw sequence reads

PROVIDER: PRJNA755855 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15508013.fastq.gz	Fastqsanger.gz
	SRR15508014.fastq.gz	Fastqsanger.gz
	SRR15508015.fastq.gz	Fastqsanger.gz
	SRR15508016.fastq.gz	Fastqsanger.gz
	SRR15508017.fastq.gz	Fastqsanger.gz

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Project description:Climate change greatly affects lake microorganisms in arid and semiarid zones, which alters ecosystem functions and the ecological security of lakes. However, the responses of lake microorganisms, especially microeukaryotes, to climate change are poorly understood. Here, using 18S ribosomal RNA (rRNA) high-throughput sequencing, we investigated the distribution patterns of microeukaryotic communities and whether and how climate change directly or indirectly affected the microeukaryotic communities on the Inner Mongolia-Xinjiang Plateau. Our results showed that climate change, as the main driving force of lake change, drives salinity to become a determinant of the microeukaryotic community among the lakes of the Inner Mongolia-Xinjiang Plateau. Salinity shapes the diversity and trophic level of the microeukaryotic community and further affects lake carbon cycling. Co-occurrence network analysis further revealed that increasing salinity reduced the complexity but improved the stability of microeukaryotic communities and changed ecological relationships. Meanwhile, increasing salinity enhanced the importance of deterministic processes in microeukaryotic community assembly, and the dominance of stochastic processes in freshwater lakes transformed into deterministic processes in salt lakes. Furthermore, we established lake biomonitoring and climate sentinel models by integrating microeukaryotic information, which would provide substantial improvements to our predictive ability of lake responses to climate change. IMPORTANCE Our findings have important implications for understanding the distribution patterns and the driving mechanisms of microeukaryotic communities among the lakes of the Inner Mongolia-Xinjiang Plateau and whether and how climate change directly or indirectly affects microeukaryotic communities. Our study also establishes the groundwork to use the lake microbiome for the assessment of aquatic ecological health and climate change, which is critical for ecosystem management and for projecting the ecological consequences of future climate warming.

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The microeukaryotic community in lake ecosystems of the Inner Mongolia Plateau, China

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