Spatiotemporal dynamics of the archaeal community in coastal sediments: assembly process and co-occurrence relationship.

The ISME Journal
Jiwen LiuXiao-Hua Zhang

Abstract

Studies of marine benthic archaeal communities are updating our view of their taxonomic composition and metabolic versatility. However, large knowledge gaps remain with regard to community assembly processes and inter taxa associations. Here, using 16S rRNA gene amplicon sequencing and qPCR, we investigated the spatiotemporal dynamics, assembly processes, and co-occurrence relationships of the archaeal community in 58 surface sediment samples collected in both summer and winter from across ~1500 km of the eastern Chinese marginal seas. Clear patterns in spatiotemporal dynamics in the archaeal community structure were observed, with a more pronounced spatial rather than seasonal variation. Accompanying the geographic variation was a significant distance-decay pattern with varying contributions from different archaeal clades, determined by their relative abundance. In both seasons, dispersal limitation was the most important process, explaining ~40% of the community variation, followed by homogeneous selection and ecological drift, that made an approximately equal contribution (~30%). This meant that stochasticity rather than determinism had a greater impact on the archaeal community assembly. Furthermore, we observed seasonality...Continue Reading

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Citations

Sep 29, 2020·Frontiers in Microbiology·Dayu ZouMeng Li
Sep 7, 2020·The Science of the Total Environment·Mutong NiuFangxia Shen
Feb 6, 2021·Applied Microbiology and Biotechnology·Zhongyi LuMeng Li
Apr 4, 2021·The Science of the Total Environment·Javad SadeghiDaniel D Heath
Jun 19, 2021·Environment International·Jinchang LiangXiao-Hua Zhang

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Datasets Mentioned

BETA
PRJNA507687

Methods Mentioned

BETA
PCR
DNA-Seq

Software Mentioned

Hmisc
vegan
PERMANOVA
PEAR
Trimmomatic
UPARSE
R “ picante ”
qvalue
VPA
R

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