Ontology highlight
ABSTRACT:
SUBMITTER: Poulain AJ
PROVIDER: S-EPMC4817628 | biostudies-literature | 2015 Dec
REPOSITORIES: biostudies-literature
Poulain Alexandre J AJ Aris-Brosou Stéphane S Blais Jules M JM Brazeau Michelle M Keller Wendel Bill WB Paterson Andrew M AM
The ISME journal 20150609 12
Mercury (Hg) is an anthropogenic pollutant that is toxic to wildlife and humans, but the response of remote ecosystems to globally distributed Hg is elusive. Here, we use DNA extracted from a dated sediment core to infer the response of microbes to historical Hg delivery. We observe a significant association between the mercuric reductase gene (merA) phylogeny and the timing of Hg deposition. Using relaxed molecular clock models, we show a significant increase in the scaled effective population ...[more]