Genomic adaptations in information processing underpin trophic strategy in a whole-ecosystem nutrient enrichment experiment.

ABSTRACT: Several universal genomic traits affect trade-offs in the capacity, cost, and efficiency of the biochemical information processing that underpins metabolism and reproduction. We analyzed the role of these traits in mediating the responses of a planktonic microbial community to nutrient enrichment in an oligotrophic, phosphorus-deficient pond in Cuatro Ciénegas, Mexico. This is one of the first whole-ecosystem experiments to involve replicated metagenomic assessment. Mean bacterial genome size, GC content, total number of tRNA genes, total number of rRNA genes, and codon usage bias in ribosomal protein sequences were all higher in the fertilized treatment, as predicted on the basis of the assumption that oligotrophy favors lower information-processing costs whereas copiotrophy favors higher

SUBMITTER: Okie JG 

PROVIDER: S-EPMC7028357 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature