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Closing the gaps on the viral photosystem‐I  psaDCAB gene organization

Marine photosynthesis is largely driven by cyanobacteria, namely Synechococcus and Prochlorococcus. Genes encoding for photosystem (PS) I and II reaction centre proteins are found in cyanophages and are believed to increase their fitness. Two viral PSI gene arrangements are known, psaJF→C→A→B→K→E→D...

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Autores principales: Roitman, Sheila, Flores‐Uribe, José, Philosof, Alon, Knowles, Ben, Rohwer, Forest, Ignacio‐Espinoza, J. Cesar, Sullivan, Matthew B., Cornejo‐Castillo, Francisco M., Sánchez, Pablo, Acinas, Silvia G., Dupont, Chris L., Béjà, Oded
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5019241/
https://www.ncbi.nlm.nih.gov/pubmed/26310718
http://dx.doi.org/10.1111/1462-2920.13036
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author Roitman, Sheila
Flores‐Uribe, José
Philosof, Alon
Knowles, Ben
Rohwer, Forest
Ignacio‐Espinoza, J. Cesar
Sullivan, Matthew B.
Cornejo‐Castillo, Francisco M.
Sánchez, Pablo
Acinas, Silvia G.
Dupont, Chris L.
Béjà, Oded
author_facet Roitman, Sheila
Flores‐Uribe, José
Philosof, Alon
Knowles, Ben
Rohwer, Forest
Ignacio‐Espinoza, J. Cesar
Sullivan, Matthew B.
Cornejo‐Castillo, Francisco M.
Sánchez, Pablo
Acinas, Silvia G.
Dupont, Chris L.
Béjà, Oded
author_sort Roitman, Sheila
collection PubMed
description Marine photosynthesis is largely driven by cyanobacteria, namely Synechococcus and Prochlorococcus. Genes encoding for photosystem (PS) I and II reaction centre proteins are found in cyanophages and are believed to increase their fitness. Two viral PSI gene arrangements are known, psaJF→C→A→B→K→E→D and psaD→C→A→B. The shared genes between these gene cassettes and their encoded proteins are distinguished by %G + C and protein sequence respectively. The data on the psaD→C→A→B gene organization were reported from only two partial gene cassettes coming from Global Ocean Sampling stations in the Pacific and Indian oceans. Now we have extended our search to 370 marine stations from six metagenomic projects. Genes corresponding to both PSI gene arrangements were detected in the Pacific, Indian and Atlantic oceans, confined to a strip along the equator (30°N and 30°S). In addition, we found that the predicted structure of the viral PsaA protein from the psaD→C→A→B organization contains a lumenal loop conserved in PsaA proteins from Synechococcus, but is completely absent in viral PsaA proteins from the psaJF→C→A→B→K→E→D gene organization and most Prochlorococcus strains. This may indicate a co‐evolutionary scenario where cyanophages containing either of these gene organizations infect cyanobacterial ecotypes biogeographically restricted to the 30°N and 30°S equatorial strip.
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spelling pubmed-50192412016-09-23 Closing the gaps on the viral photosystem‐I  psaDCAB gene organization Roitman, Sheila Flores‐Uribe, José Philosof, Alon Knowles, Ben Rohwer, Forest Ignacio‐Espinoza, J. Cesar Sullivan, Matthew B. Cornejo‐Castillo, Francisco M. Sánchez, Pablo Acinas, Silvia G. Dupont, Chris L. Béjà, Oded Environ Microbiol Research Articles Marine photosynthesis is largely driven by cyanobacteria, namely Synechococcus and Prochlorococcus. Genes encoding for photosystem (PS) I and II reaction centre proteins are found in cyanophages and are believed to increase their fitness. Two viral PSI gene arrangements are known, psaJF→C→A→B→K→E→D and psaD→C→A→B. The shared genes between these gene cassettes and their encoded proteins are distinguished by %G + C and protein sequence respectively. The data on the psaD→C→A→B gene organization were reported from only two partial gene cassettes coming from Global Ocean Sampling stations in the Pacific and Indian oceans. Now we have extended our search to 370 marine stations from six metagenomic projects. Genes corresponding to both PSI gene arrangements were detected in the Pacific, Indian and Atlantic oceans, confined to a strip along the equator (30°N and 30°S). In addition, we found that the predicted structure of the viral PsaA protein from the psaD→C→A→B organization contains a lumenal loop conserved in PsaA proteins from Synechococcus, but is completely absent in viral PsaA proteins from the psaJF→C→A→B→K→E→D gene organization and most Prochlorococcus strains. This may indicate a co‐evolutionary scenario where cyanophages containing either of these gene organizations infect cyanobacterial ecotypes biogeographically restricted to the 30°N and 30°S equatorial strip. John Wiley and Sons Inc. 2015-10-14 2015-12 /pmc/articles/PMC5019241/ /pubmed/26310718 http://dx.doi.org/10.1111/1462-2920.13036 Text en © 2015 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Roitman, Sheila
Flores‐Uribe, José
Philosof, Alon
Knowles, Ben
Rohwer, Forest
Ignacio‐Espinoza, J. Cesar
Sullivan, Matthew B.
Cornejo‐Castillo, Francisco M.
Sánchez, Pablo
Acinas, Silvia G.
Dupont, Chris L.
Béjà, Oded
Closing the gaps on the viral photosystem‐I  psaDCAB gene organization
title Closing the gaps on the viral photosystem‐I  psaDCAB gene organization
title_full Closing the gaps on the viral photosystem‐I  psaDCAB gene organization
title_fullStr Closing the gaps on the viral photosystem‐I  psaDCAB gene organization
title_full_unstemmed Closing the gaps on the viral photosystem‐I  psaDCAB gene organization
title_short Closing the gaps on the viral photosystem‐I  psaDCAB gene organization
title_sort closing the gaps on the viral photosystem‐i  psadcab gene organization
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5019241/
https://www.ncbi.nlm.nih.gov/pubmed/26310718
http://dx.doi.org/10.1111/1462-2920.13036
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