Community diversity is associated with intra-species genetic diversity and gene loss in the human gut microbiome.

ABSTRACT: How the ecological process of community assembly interacts with intra-species diversity and evolutionary change is a longstanding question. Two contrasting hypotheses have been proposed: Diversity Begets Diversity (DBD), in which taxa tend to become more diverse in already diverse communities, and Ecological Controls (EC), in which higher community diversity impedes diversification. Previously, using 16S rRNA gene amplicon data across a range of microbiomes, we showed a generally positive relationship between taxa diversity and community diversity at higher taxonomic levels, consistent with the predictions of DBD (Madi et al., 2020). However, this positive 'diversity slope' plateaus at high levels of community diversity. Here we show that this general pattern holds at much finer genetic re

SUBMITTER: Madi N 

PROVIDER: S-EPMC9977275 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature