Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community
- Autores
- Vikram, Surendra; Guerrero, Leandro Demián; Makhalanyane, Thulani P.; Le, Phuong T.; Seely, Mary; Cowan, Don A.
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In hyperarid ecosystems, macroscopic communities are often restricted to cryptic niches, such as hypoliths (microbial communities found beneath translucent rocks), which are widely distributed in hyperarid desert environments. While hypolithic communities are considered to play a major role in productivity, the functional guilds implicated in these processes remain unclear. Here, we describe the metagenomic sequencing, assembly and analysis of hypolithic microbial communities from the Namib Desert. Taxonomic analyses using Small Subunit phylogenetic markers showed that bacterial phylotypes (93%) dominated the communities, with relatively small proportions of archaea (0.43%) and fungi (5.6%). Refseq-viral database analysis showed the presence of double stranded DNA viruses (7.8% contigs), dominated by Caudovirales (59.2%). Analysis of functional genes and metabolic pathways revealed that cyanobacteria were primarily responsible for photosynthesis with the presence of multiple copies of genes for both photosystems I and II, with a smaller but significant fraction of proteobacterial anoxic photosystem II genes. Hypolithons demonstrated an extensive genetic capacity for the degradation of phosphonates and mineralization of organic sulphur. Surprisingly, we were unable to show the presence of genes representative of complete nitrogen cycles. Taken together, our analyses suggest an extensive capacity for carbon, phosphate and sulphate cycling but only limited nitrogen biogeochemistry.
Fil: Vikram, Surendra. University of Pretoria; Sudáfrica
Fil: Guerrero, Leandro Demián. University of Pretoria; Sudáfrica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Makhalanyane, Thulani P.. University of Pretoria; Sudáfrica
Fil: Le, Phuong T.. University of Pretoria; Sudáfrica
Fil: Seely, Mary. Gobabeb Research and Training Centr; Namibia
Fil: Cowan, Don A.. University of Pretoria; Sudáfrica - Materia
-
Environmental Microbiology
Metagenomics
Desert
Hypoliths - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/69929
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Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche communityVikram, SurendraGuerrero, Leandro DemiánMakhalanyane, Thulani P.Le, Phuong T.Seely, MaryCowan, Don A.Environmental MicrobiologyMetagenomicsDesertHypolithshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In hyperarid ecosystems, macroscopic communities are often restricted to cryptic niches, such as hypoliths (microbial communities found beneath translucent rocks), which are widely distributed in hyperarid desert environments. While hypolithic communities are considered to play a major role in productivity, the functional guilds implicated in these processes remain unclear. Here, we describe the metagenomic sequencing, assembly and analysis of hypolithic microbial communities from the Namib Desert. Taxonomic analyses using Small Subunit phylogenetic markers showed that bacterial phylotypes (93%) dominated the communities, with relatively small proportions of archaea (0.43%) and fungi (5.6%). Refseq-viral database analysis showed the presence of double stranded DNA viruses (7.8% contigs), dominated by Caudovirales (59.2%). Analysis of functional genes and metabolic pathways revealed that cyanobacteria were primarily responsible for photosynthesis with the presence of multiple copies of genes for both photosystems I and II, with a smaller but significant fraction of proteobacterial anoxic photosystem II genes. Hypolithons demonstrated an extensive genetic capacity for the degradation of phosphonates and mineralization of organic sulphur. Surprisingly, we were unable to show the presence of genes representative of complete nitrogen cycles. Taken together, our analyses suggest an extensive capacity for carbon, phosphate and sulphate cycling but only limited nitrogen biogeochemistry.Fil: Vikram, Surendra. University of Pretoria; SudáfricaFil: Guerrero, Leandro Demián. University of Pretoria; Sudáfrica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; ArgentinaFil: Makhalanyane, Thulani P.. University of Pretoria; SudáfricaFil: Le, Phuong T.. University of Pretoria; SudáfricaFil: Seely, Mary. Gobabeb Research and Training Centr; NamibiaFil: Cowan, Don A.. University of Pretoria; SudáfricaWiley Blackwell Publishing, Inc2016-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/69929Vikram, Surendra; Guerrero, Leandro Demián; Makhalanyane, Thulani P.; Le, Phuong T.; Seely, Mary; et al.; Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community; Wiley Blackwell Publishing, Inc; Environmental Microbiology; 18; 6; 6-2016; 1875-18881462-29121462-2920CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/1462-2920.13088info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/1462-2920.13088info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:35:01Zoai:ri.conicet.gov.ar:11336/69929instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:35:01.543CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
title |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
spellingShingle |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community Vikram, Surendra Environmental Microbiology Metagenomics Desert Hypoliths |
title_short |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
title_full |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
title_fullStr |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
title_full_unstemmed |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
title_sort |
Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community |
dc.creator.none.fl_str_mv |
Vikram, Surendra Guerrero, Leandro Demián Makhalanyane, Thulani P. Le, Phuong T. Seely, Mary Cowan, Don A. |
author |
Vikram, Surendra |
author_facet |
Vikram, Surendra Guerrero, Leandro Demián Makhalanyane, Thulani P. Le, Phuong T. Seely, Mary Cowan, Don A. |
author_role |
author |
author2 |
Guerrero, Leandro Demián Makhalanyane, Thulani P. Le, Phuong T. Seely, Mary Cowan, Don A. |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Environmental Microbiology Metagenomics Desert Hypoliths |
topic |
Environmental Microbiology Metagenomics Desert Hypoliths |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In hyperarid ecosystems, macroscopic communities are often restricted to cryptic niches, such as hypoliths (microbial communities found beneath translucent rocks), which are widely distributed in hyperarid desert environments. While hypolithic communities are considered to play a major role in productivity, the functional guilds implicated in these processes remain unclear. Here, we describe the metagenomic sequencing, assembly and analysis of hypolithic microbial communities from the Namib Desert. Taxonomic analyses using Small Subunit phylogenetic markers showed that bacterial phylotypes (93%) dominated the communities, with relatively small proportions of archaea (0.43%) and fungi (5.6%). Refseq-viral database analysis showed the presence of double stranded DNA viruses (7.8% contigs), dominated by Caudovirales (59.2%). Analysis of functional genes and metabolic pathways revealed that cyanobacteria were primarily responsible for photosynthesis with the presence of multiple copies of genes for both photosystems I and II, with a smaller but significant fraction of proteobacterial anoxic photosystem II genes. Hypolithons demonstrated an extensive genetic capacity for the degradation of phosphonates and mineralization of organic sulphur. Surprisingly, we were unable to show the presence of genes representative of complete nitrogen cycles. Taken together, our analyses suggest an extensive capacity for carbon, phosphate and sulphate cycling but only limited nitrogen biogeochemistry. Fil: Vikram, Surendra. University of Pretoria; Sudáfrica Fil: Guerrero, Leandro Demián. University of Pretoria; Sudáfrica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina Fil: Makhalanyane, Thulani P.. University of Pretoria; Sudáfrica Fil: Le, Phuong T.. University of Pretoria; Sudáfrica Fil: Seely, Mary. Gobabeb Research and Training Centr; Namibia Fil: Cowan, Don A.. University of Pretoria; Sudáfrica |
description |
In hyperarid ecosystems, macroscopic communities are often restricted to cryptic niches, such as hypoliths (microbial communities found beneath translucent rocks), which are widely distributed in hyperarid desert environments. While hypolithic communities are considered to play a major role in productivity, the functional guilds implicated in these processes remain unclear. Here, we describe the metagenomic sequencing, assembly and analysis of hypolithic microbial communities from the Namib Desert. Taxonomic analyses using Small Subunit phylogenetic markers showed that bacterial phylotypes (93%) dominated the communities, with relatively small proportions of archaea (0.43%) and fungi (5.6%). Refseq-viral database analysis showed the presence of double stranded DNA viruses (7.8% contigs), dominated by Caudovirales (59.2%). Analysis of functional genes and metabolic pathways revealed that cyanobacteria were primarily responsible for photosynthesis with the presence of multiple copies of genes for both photosystems I and II, with a smaller but significant fraction of proteobacterial anoxic photosystem II genes. Hypolithons demonstrated an extensive genetic capacity for the degradation of phosphonates and mineralization of organic sulphur. Surprisingly, we were unable to show the presence of genes representative of complete nitrogen cycles. Taken together, our analyses suggest an extensive capacity for carbon, phosphate and sulphate cycling but only limited nitrogen biogeochemistry. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/69929 Vikram, Surendra; Guerrero, Leandro Demián; Makhalanyane, Thulani P.; Le, Phuong T.; Seely, Mary; et al.; Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community; Wiley Blackwell Publishing, Inc; Environmental Microbiology; 18; 6; 6-2016; 1875-1888 1462-2912 1462-2920 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/69929 |
identifier_str_mv |
Vikram, Surendra; Guerrero, Leandro Demián; Makhalanyane, Thulani P.; Le, Phuong T.; Seely, Mary; et al.; Metagenomic analysis provides insights into functional capacity in a hyperarid desert soil niche community; Wiley Blackwell Publishing, Inc; Environmental Microbiology; 18; 6; 6-2016; 1875-1888 1462-2912 1462-2920 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1462-2920.13088 info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/1462-2920.13088 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614367549587456 |
score |
13.070432 |