Metagenomic insights into microbial community structure and metabolism in alpine permafrost on the Tibetan Plateau ...

• Main Author: Luyao Kang
• Format: Dataset
• Language: unknown
• Published: Zenodo 2024
• Subjects: permafrost
• Online Access: https://dx.doi.org/10.5281/zenodo.11648114; https://zenodo.org/doi/10.5281/zenodo.11648114

This project repository associated with the following manuscript: Luyao Kang, Yutong Song, Rachel Mackelprang, Dianye Zhang, Shuqi Qin, Leiyi Chen, Linwei Wu, Yunfeng Peng and Yuanhe Yang*. Metagenomic insights into microbial community structure and metabolism in alpine permafrost on the Tibetan Plateau. ... : Permafrost, characterized by its frozen soil, serves as a unique habitat for diverse microorganisms. Understanding these microbial communities is crucial for predicting the response of permafrost ecosystems to climate change. However, large-scale evidence regarding stratigraphic variations in microbial profiles remains limited. Here, we analyze microbial community structure and functional potential based on 16S rRNA gene amplicon sequencing and metagenomic data obtained from a ∼1,000 km permafrost transect on the Tibetan Plateau. We find that microbial alpha diversity declines and beta diversity increases down the soil profile. Microbial assemblages are primarily governed by dispersal limitation and drift; the importance of drift decreases and that of dispersal limitation increases with soil depth. Moreover, genes related to reduction reactions (e.g., ferric iron reduction, dissimilatory nitrate reduction, and denitrification) are enriched in the subsurface and permafrost layers. In addition, microbial ...