Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean
Microbial oceanography studies have demonstrated the central role of microbes in functioning and nutrient cycling of the global ocean. Most of these former studies including at Southwestern Atlantic Ocean (SAO) focused on surface seawater and benthic organisms (e.g., coral reefs and sponges). This i...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/307479 2023-07-23T04:14:05+02:00 Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean Alves Junior, Nelson Meirelles, Pedro Milet de Oliveira Santos, Eidy Dutilh, Bas Silva, Genivaldo G Z Paranhos, Rodolfo Cabral, Anderson S Rezende, Carlos Iida, Tetsuya de Moura, Rodrigo L Kruger, Ricardo Henrique Pereira, Renato C Valle, Rogério Sawabe, Tomoo Thompson, Cristiane Thompson, Fabiano Sub Bioinformatics Theoretical Biology and Bioinformatics 2014-09-10 application/pdf https://dspace.library.uu.nl/handle/1874/307479 en eng 0302-8933 https://dspace.library.uu.nl/handle/1874/307479 info:eu-repo/semantics/ClosedAccess Metagenomics South Atlantic Ocean Microbial diversity Water mass Article 2014 ftunivutrecht 2023-07-02T01:12:54Z Microbial oceanography studies have demonstrated the central role of microbes in functioning and nutrient cycling of the global ocean. Most of these former studies including at Southwestern Atlantic Ocean (SAO) focused on surface seawater and benthic organisms (e.g., coral reefs and sponges). This is the first metagenomic study of the SAO. The SAO harbors a great microbial diversity and marine life (e.g., coral reefs and rhodolith beds). The aim of this study was to characterize the microbial community diversity of the SAO along the depth continuum and different water masses by means of metagenomic, physical-chemical and biological analyses. The microbial community abundance and diversity appear to be strongly influenced by the temperature, dissolved organic carbon, and depth, and three groups were defined [1. surface waters; 2. sub-superficial chlorophyll maximum (SCM) (48-82 m) and 3. deep waters (236-1,200 m)] according to the microbial composition. The microbial communities of deep water masses [South Atlantic Central water, Antarctic Intermediate water and Upper Circumpolar Deep water] are highly similar. Of the 421,418 predicted genes for SAO metagenomes, 36.7 % had no homologous hits against 17,451,486 sequences from the North Atlantic, South Atlantic, North Pacific, South Pacific and Indian Oceans. From these unique genes from the SAO, only 6.64 % had hits against the NCBI non-redundant protein database. SAO microbial communities share genes with the global ocean in at least 70 cellular functions; however, more than a third of predicted SAO genes represent a unique gene pool in global ocean. This study was the first attempt to characterize the taxonomic and functional community diversity of different water masses at SAO and compare it with the microbial community diversity of the global ocean, and SAO had a significant portion of endemic gene diversity. Microbial communities of deep water masses (236-1,200 m) are highly similar, suggesting that these water masses have very similar microbiological ... Article in Journal/Newspaper Antarc* Antarctic North Atlantic South Atlantic Ocean Utrecht University Repository Antarctic Indian Pacific |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Metagenomics South Atlantic Ocean Microbial diversity Water mass |
spellingShingle |
Metagenomics South Atlantic Ocean Microbial diversity Water mass Alves Junior, Nelson Meirelles, Pedro Milet de Oliveira Santos, Eidy Dutilh, Bas Silva, Genivaldo G Z Paranhos, Rodolfo Cabral, Anderson S Rezende, Carlos Iida, Tetsuya de Moura, Rodrigo L Kruger, Ricardo Henrique Pereira, Renato C Valle, Rogério Sawabe, Tomoo Thompson, Cristiane Thompson, Fabiano Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean |
topic_facet |
Metagenomics South Atlantic Ocean Microbial diversity Water mass |
description |
Microbial oceanography studies have demonstrated the central role of microbes in functioning and nutrient cycling of the global ocean. Most of these former studies including at Southwestern Atlantic Ocean (SAO) focused on surface seawater and benthic organisms (e.g., coral reefs and sponges). This is the first metagenomic study of the SAO. The SAO harbors a great microbial diversity and marine life (e.g., coral reefs and rhodolith beds). The aim of this study was to characterize the microbial community diversity of the SAO along the depth continuum and different water masses by means of metagenomic, physical-chemical and biological analyses. The microbial community abundance and diversity appear to be strongly influenced by the temperature, dissolved organic carbon, and depth, and three groups were defined [1. surface waters; 2. sub-superficial chlorophyll maximum (SCM) (48-82 m) and 3. deep waters (236-1,200 m)] according to the microbial composition. The microbial communities of deep water masses [South Atlantic Central water, Antarctic Intermediate water and Upper Circumpolar Deep water] are highly similar. Of the 421,418 predicted genes for SAO metagenomes, 36.7 % had no homologous hits against 17,451,486 sequences from the North Atlantic, South Atlantic, North Pacific, South Pacific and Indian Oceans. From these unique genes from the SAO, only 6.64 % had hits against the NCBI non-redundant protein database. SAO microbial communities share genes with the global ocean in at least 70 cellular functions; however, more than a third of predicted SAO genes represent a unique gene pool in global ocean. This study was the first attempt to characterize the taxonomic and functional community diversity of different water masses at SAO and compare it with the microbial community diversity of the global ocean, and SAO had a significant portion of endemic gene diversity. Microbial communities of deep water masses (236-1,200 m) are highly similar, suggesting that these water masses have very similar microbiological ... |
author2 |
Sub Bioinformatics Theoretical Biology and Bioinformatics |
format |
Article in Journal/Newspaper |
author |
Alves Junior, Nelson Meirelles, Pedro Milet de Oliveira Santos, Eidy Dutilh, Bas Silva, Genivaldo G Z Paranhos, Rodolfo Cabral, Anderson S Rezende, Carlos Iida, Tetsuya de Moura, Rodrigo L Kruger, Ricardo Henrique Pereira, Renato C Valle, Rogério Sawabe, Tomoo Thompson, Cristiane Thompson, Fabiano |
author_facet |
Alves Junior, Nelson Meirelles, Pedro Milet de Oliveira Santos, Eidy Dutilh, Bas Silva, Genivaldo G Z Paranhos, Rodolfo Cabral, Anderson S Rezende, Carlos Iida, Tetsuya de Moura, Rodrigo L Kruger, Ricardo Henrique Pereira, Renato C Valle, Rogério Sawabe, Tomoo Thompson, Cristiane Thompson, Fabiano |
author_sort |
Alves Junior, Nelson |
title |
Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean |
title_short |
Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean |
title_full |
Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean |
title_fullStr |
Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean |
title_full_unstemmed |
Microbial community diversity and physical-chemical features of the Southwestern Atlantic Ocean |
title_sort |
microbial community diversity and physical-chemical features of the southwestern atlantic ocean |
publishDate |
2014 |
url |
https://dspace.library.uu.nl/handle/1874/307479 |
geographic |
Antarctic Indian Pacific |
geographic_facet |
Antarctic Indian Pacific |
genre |
Antarc* Antarctic North Atlantic South Atlantic Ocean |
genre_facet |
Antarc* Antarctic North Atlantic South Atlantic Ocean |
op_relation |
0302-8933 https://dspace.library.uu.nl/handle/1874/307479 |
op_rights |
info:eu-repo/semantics/ClosedAccess |
_version_ |
1772182845364633600 |