1. Multispecies diel transcriptional oscillations in open ocean heterotrophic bacterial assemblages
- Author
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Scott M. Gifford, Edward F. DeLong, Roman Marin, Stephan C. Schuster, Curtis R. Young, John M. Eppley, Christopher A. Scholin, Elizabeth A. Ottesen, Massachusetts Institute of Technology. Department of Civil and Environmental Engineering, DeLong, Edward, Ottesen, Elizabeth, Young, Curtis R., Gifford, Scott Michael, and Eppley, John Marmaduke
- Subjects
Transcriptome ,Regulation of gene expression ,Multidisciplinary ,biology ,Ecology ,fungi ,Bacterioplankton ,Prochlorococcus ,Roseobacter ,Plankton ,biology.organism_classification ,Diel vertical migration ,Archaea - Abstract
Oscillating diurnal rhythms of gene transcription, metabolic activity, and behavior are found in all three domains of life. However, diel cycles in naturally occurring heterotrophic bacteria and archaea have rarely been observed. Here, we report time-resolved whole-genome transcriptome profiles of multiple, naturally occurring oceanic bacterial populations sampled in situ over 3 days. As anticipated, the cyanobacterial transcriptome exhibited pronounced diel periodicity. Unexpectedly, several different heterotrophic bacterioplankton groups also displayed diel cycling in many of their gene transcripts. Furthermore, diel oscillations in different heterotrophic bacterial groups suggested population-specific timing of peak transcript expression in a variety of metabolic gene suites. These staggered multispecies waves of diel gene transcription may influence both the tempo and the mode of matter and energy transformation in the sea., Gordon and Betty Moore Foundation (GBMF 492.01), Gordon and Betty Moore Foundation (GBMF 3777), National Science Foundation (U.S.) (Grant EF0424599), David & Lucile Packard Foundation
- Published
- 2014
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