Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat

To investigate the extent of genetic stratification in structured microbial communities, we compared the metagenomes of 10 successive layers of a phylogenetically complex hypersaline mat from Guerrero Negro, Mexico. We found pronounced millimeter-scale genetic gradients that were consistent with the...

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Autores principales: Kunin, Victor, Raes, Jeroen, Harris, J Kirk, Spear, John R, Walker, Jeffrey J, Ivanova, Natalia, von Mering, Christian, Bebout, Brad M, Pace, Norman R, Bork, Peer, Hugenholtz, Philip
Formato: Texto
Lenguaje:English
Publicado: Nature Publishing Group 2008
Materias:
Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2483411/
https://www.ncbi.nlm.nih.gov/pubmed/18523433
http://dx.doi.org/10.1038/msb.2008.35
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author Kunin, Victor
Raes, Jeroen
Harris, J Kirk
Spear, John R
Walker, Jeffrey J
Ivanova, Natalia
von Mering, Christian
Bebout, Brad M
Pace, Norman R
Bork, Peer
Hugenholtz, Philip
author_facet Kunin, Victor
Raes, Jeroen
Harris, J Kirk
Spear, John R
Walker, Jeffrey J
Ivanova, Natalia
von Mering, Christian
Bebout, Brad M
Pace, Norman R
Bork, Peer
Hugenholtz, Philip
author_sort Kunin, Victor
collection PubMed
description To investigate the extent of genetic stratification in structured microbial communities, we compared the metagenomes of 10 successive layers of a phylogenetically complex hypersaline mat from Guerrero Negro, Mexico. We found pronounced millimeter-scale genetic gradients that were consistent with the physicochemical profile of the mat. Despite these gradients, all layers displayed near-identical and acid-shifted isoelectric point profiles due to a molecular convergence of amino-acid usage, indicating that hypersalinity enforces an overriding selective pressure on the mat community.
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spelling pubmed-24834112008-07-24 Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat Kunin, Victor Raes, Jeroen Harris, J Kirk Spear, John R Walker, Jeffrey J Ivanova, Natalia von Mering, Christian Bebout, Brad M Pace, Norman R Bork, Peer Hugenholtz, Philip Mol Syst Biol Report To investigate the extent of genetic stratification in structured microbial communities, we compared the metagenomes of 10 successive layers of a phylogenetically complex hypersaline mat from Guerrero Negro, Mexico. We found pronounced millimeter-scale genetic gradients that were consistent with the physicochemical profile of the mat. Despite these gradients, all layers displayed near-identical and acid-shifted isoelectric point profiles due to a molecular convergence of amino-acid usage, indicating that hypersalinity enforces an overriding selective pressure on the mat community. Nature Publishing Group 2008-06-03 /pmc/articles/PMC2483411/ /pubmed/18523433 http://dx.doi.org/10.1038/msb.2008.35 Text en Copyright © 2008, EMBO and Nature Publishing Group http://creativecommons.org/licenses/by-nc-sa/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits distribution and reproduction in any medium, provided the original author and source are credited. Creation of derivative works is permitted but the resulting work may be distributed only under the same or similar licence to this one. This licence does not permit commercial exploitation without specific permission.
spellingShingle Report
Kunin, Victor
Raes, Jeroen
Harris, J Kirk
Spear, John R
Walker, Jeffrey J
Ivanova, Natalia
von Mering, Christian
Bebout, Brad M
Pace, Norman R
Bork, Peer
Hugenholtz, Philip
Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
title Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
title_full Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
title_fullStr Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
title_full_unstemmed Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
title_short Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
title_sort millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat
topic Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2483411/
https://www.ncbi.nlm.nih.gov/pubmed/18523433
http://dx.doi.org/10.1038/msb.2008.35
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