Interpreting distance-decay pattern of soil bacteria via quantifying the assembly processes at multiple spatial scales.

ABSTRACT: It has been widely accepted that there is a distance-decay pattern in the soil microbiome. However, few studies have attempted to interpret the microbial distance-decay pattern from the perspective of quantifying underlying processes. In this study, we examined the processes governing bacterial community assembly at multiple spatial scales in maize fields of Northeast China using Illumina MiSeq sequencing. Results showed that the processes governing spatial turnover in bacterial community composition shifted regularly with spatial scale, with homogenizing dispersal dominating at small spatial scales and variable selection dominating at larger scales, which in turn explained the distance-decay pattern that closer located sites tended to have higher community similarity. Together, homogenizi

SUBMITTER: Feng M 

PROVIDER: S-EPMC6741136 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature