Xiong Xiang, Liu Song, Huang Jieya, Feng Lian, Liu Wenzhi
State key Laboratory of Lake and Watershed Science for Water Security, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
Sci Data. 2025 Aug 29;12(1):1516. doi: 10.1038/s41597-025-05888-8.
Rivers are dynamic ecosystems that play a crucial role in supporting microbial diversity and sustaining a wide range of ecological functions. Here, we used metagenomic sequencing datasets of channel sediments, riparian bulk soils, and riparian rhizosphere soils to construct metagenome-assembled genomes (MAGs) from 30 river wetlands along a latitudinal gradient in China. We identified 236 MAGs with completeness ≥ 50% and contamination ≤ 10%, including 225 bacteria and 11 archaea. Among these, 24.2% showed a completeness of 80% or higher. The dominant taxa were assigned to Pseudomonadota (78 MAGs), Actinomycetota (47 MAGs), and Bacteroidota (29 MAGs), which were particularly prevalent in riparian soils. These draft genomes provide valuable insights into microbial diversity and biogeochemical potential in river wetlands, enhancing our understanding of how microorganisms have evolved to adapt to the complex environments of rivers and latitudinal variation.
河流是动态生态系统，在支持微生物多样性和维持广泛的生态功能方面发挥着关键作用。在此，我们使用了河道沉积物、河岸块状土壤和河岸根际土壤的宏基因组测序数据集，从中国沿纬度梯度分布的30个河流湿地构建宏基因组组装基因组（MAG）。我们鉴定出236个完整性≥50%且污染率≤10%的MAG，包括225个细菌和11个古菌。其中，24.2%的MAG完整性达到80%或更高。优势分类群被归为假单胞菌门（78个MAG）、放线菌门（47个MAG）和拟杆菌门（29个MAG），它们在河岸土壤中尤为普遍。这些草图基因组为河流湿地中的微生物多样性和生物地球化学潜力提供了有价值的见解，增进了我们对微生物如何进化以适应河流复杂环境和纬度变化的理解。
