Microbial community transcriptional networks are conserved in three domains at ocean basin scales
Planktonic microbial communities in the ocean are typically dominated by several cosmopolitan clades of Bacteria, Archaea, and Eukarya characterized by their ribosomal RNA gene phylogenies and genomic features. Although the environments these communities inhabit range from coastal to open ocean wate...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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National Academy of Sciences (U.S.)
2015
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| Online Access: | http://hdl.handle.net/1721.1/98401 |
| _version_ | 1811094846120656896 |
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| author | Aylward, Frank O. Eppley, John M. Smith, Jason M. Chavez, Francisco P. Scholin, Christopher A. DeLong, Edward Francis |
| author2 | Massachusetts Institute of Technology. Department of Biological Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Biological Engineering Aylward, Frank O. Eppley, John M. Smith, Jason M. Chavez, Francisco P. Scholin, Christopher A. DeLong, Edward Francis |
| author_sort | Aylward, Frank O. |
| collection | MIT |
| description | Planktonic microbial communities in the ocean are typically dominated by several cosmopolitan clades of Bacteria, Archaea, and Eukarya characterized by their ribosomal RNA gene phylogenies and genomic features. Although the environments these communities inhabit range from coastal to open ocean waters, how the biological dynamics vary between such disparate habitats is not well known. To gain insight into the differential activities of microbial populations inhabiting different oceanic provinces we compared the daily metatranscriptome profiles of related microbial populations inhabiting surface waters of both a coastal California upwelling region (CC) as well as the oligotrophic North Pacific Subtropical Gyre (NPSG). Transcriptional networks revealed that the dominant photoautotrophic microbes in each environment (Ostreococcus in CC, Prochlorococcus in NPSG) were central determinants of overall community transcriptome dynamics. Furthermore, heterotrophic bacterial clades common to both ecosystems (SAR11, SAR116, SAR86, SAR406, and Roseobacter) displayed conserved, genome-wide inter- and intrataxon transcriptional patterns and diel cycles. Populations of SAR11 and SAR86 clades in particular exhibited tightly coordinated transcriptional patterns in both coastal and pelagic ecosystems, suggesting that specific biological interactions between these groups are widespread in nature. Our results identify common diurnally oscillating behaviors among diverse planktonic microbial species regardless of habitat, suggesting that highly conserved temporally phased biotic interactions are ubiquitous among planktonic microbial communities worldwide. |
| first_indexed | 2024-09-23T16:06:26Z |
| format | Article |
| id | mit-1721.1/98401 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:06:26Z |
| publishDate | 2015 |
| publisher | National Academy of Sciences (U.S.) |
| record_format | dspace |
| spelling | mit-1721.1/984012022-09-29T18:13:32Z Microbial community transcriptional networks are conserved in three domains at ocean basin scales Aylward, Frank O. Eppley, John M. Smith, Jason M. Chavez, Francisco P. Scholin, Christopher A. DeLong, Edward Francis Massachusetts Institute of Technology. Department of Biological Engineering Massachusetts Institute of Technology. Department of Civil and Environmental Engineering DeLong, Edward Francis Planktonic microbial communities in the ocean are typically dominated by several cosmopolitan clades of Bacteria, Archaea, and Eukarya characterized by their ribosomal RNA gene phylogenies and genomic features. Although the environments these communities inhabit range from coastal to open ocean waters, how the biological dynamics vary between such disparate habitats is not well known. To gain insight into the differential activities of microbial populations inhabiting different oceanic provinces we compared the daily metatranscriptome profiles of related microbial populations inhabiting surface waters of both a coastal California upwelling region (CC) as well as the oligotrophic North Pacific Subtropical Gyre (NPSG). Transcriptional networks revealed that the dominant photoautotrophic microbes in each environment (Ostreococcus in CC, Prochlorococcus in NPSG) were central determinants of overall community transcriptome dynamics. Furthermore, heterotrophic bacterial clades common to both ecosystems (SAR11, SAR116, SAR86, SAR406, and Roseobacter) displayed conserved, genome-wide inter- and intrataxon transcriptional patterns and diel cycles. Populations of SAR11 and SAR86 clades in particular exhibited tightly coordinated transcriptional patterns in both coastal and pelagic ecosystems, suggesting that specific biological interactions between these groups are widespread in nature. Our results identify common diurnally oscillating behaviors among diverse planktonic microbial species regardless of habitat, suggesting that highly conserved temporally phased biotic interactions are ubiquitous among planktonic microbial communities worldwide. Gordon and Betty Moore Foundation (3777) National Science Foundation (U.S.) (Grant EF0424599) Simons Foundation (Simons Collaboration on Ocean Processes and Ecology) 2015-09-08T17:20:46Z 2015-09-08T17:20:46Z 2015-04 2014-12 Article http://purl.org/eprint/type/JournalArticle 0027-8424 1091-6490 http://hdl.handle.net/1721.1/98401 Aylward, Frank O., John M. Eppley, Jason M. Smith, Francisco P. Chavez, Christopher A. Scholin, and Edward F. DeLong. “Microbial Community Transcriptional Networks Are Conserved in Three Domains at Ocean Basin Scales.” Proc Natl Acad Sci USA 112, no. 17 (March 9, 2015): 5443–5448. en_US http://dx.doi.org/10.1073/pnas.1502883112 Proceedings of the National Academy of Sciences Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf National Academy of Sciences (U.S.) National Academy of Sciences (U.S.) |
| spellingShingle | Aylward, Frank O. Eppley, John M. Smith, Jason M. Chavez, Francisco P. Scholin, Christopher A. DeLong, Edward Francis Microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| title | Microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| title_full | Microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| title_fullStr | Microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| title_full_unstemmed | Microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| title_short | Microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| title_sort | microbial community transcriptional networks are conserved in three domains at ocean basin scales |
| url | http://hdl.handle.net/1721.1/98401 |
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