Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat

Archaea play an important role in nitrification and are, thus, inextricably linked to the global carbon and nitrogen cycles. Since the initial discovery of an ammonia monooxygenase α-subunit (amoA) gene associated with an archaeal metagenomic fragment, archaeal amoA sequences have been detected in...

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Main Authors: Steven J Biller, Annika C Mosier, George F Wells, Christopher A Francis
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-07-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fmicb.2012.00252/full
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author Steven J Biller
Steven J Biller
Annika C Mosier
Annika C Mosier
George F Wells
George F Wells
Christopher A Francis
author_facet Steven J Biller
Steven J Biller
Annika C Mosier
Annika C Mosier
George F Wells
George F Wells
Christopher A Francis
author_sort Steven J Biller
collection DOAJ
description Archaea play an important role in nitrification and are, thus, inextricably linked to the global carbon and nitrogen cycles. Since the initial discovery of an ammonia monooxygenase α-subunit (amoA) gene associated with an archaeal metagenomic fragment, archaeal amoA sequences have been detected in a wide variety of nitrifying environments. Recent sequencing efforts have revealed extensive diversity of archaeal amoA sequences within different habitats. In this study, we have examined over 8000 amoA sequences from the literature and public databases in an effort to understand the ecological factors influencing the distribution and diversity of ammonia-oxidizing archaea (AOA), with a particular focus on sequences from aquatic habitats. This broad survey provides strong statistical support for the hypothesis that different environments contain distinct clusters of AOA amoA sequences, as surprisingly few sequences are found in more than one habitat type. Within aquatic environments, salinity, depth in the water column, and temperature were significantly correlated with the distribution of sequence types. These findings support the existence of multiple distinct aquatic AOA populations in the environment and suggest some possible selective pressures driving the partitioning of AOA amoA diversity.
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spelling doaj.art-469efb1a013547bc8f2b2d3599631b772022-12-22T01:14:22ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2012-07-01310.3389/fmicb.2012.0025227190Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitatSteven J Biller0Steven J Biller1Annika C Mosier2Annika C Mosier3George F Wells4George F Wells5Christopher A Francis6Stanford UniversityMassachusetts Institute of TechnologyStanford UniversityUniversity of California, BerkeleyStanford UniversitySwiss Federal Institute of Aquatic Science and TechnologyStanford UniversityArchaea play an important role in nitrification and are, thus, inextricably linked to the global carbon and nitrogen cycles. Since the initial discovery of an ammonia monooxygenase α-subunit (amoA) gene associated with an archaeal metagenomic fragment, archaeal amoA sequences have been detected in a wide variety of nitrifying environments. Recent sequencing efforts have revealed extensive diversity of archaeal amoA sequences within different habitats. In this study, we have examined over 8000 amoA sequences from the literature and public databases in an effort to understand the ecological factors influencing the distribution and diversity of ammonia-oxidizing archaea (AOA), with a particular focus on sequences from aquatic habitats. This broad survey provides strong statistical support for the hypothesis that different environments contain distinct clusters of AOA amoA sequences, as surprisingly few sequences are found in more than one habitat type. Within aquatic environments, salinity, depth in the water column, and temperature were significantly correlated with the distribution of sequence types. These findings support the existence of multiple distinct aquatic AOA populations in the environment and suggest some possible selective pressures driving the partitioning of AOA amoA diversity.http://journal.frontiersin.org/Journal/10.3389/fmicb.2012.00252/fullNitrificationthaumarchaeotaammonia-oxidizing archaeabiogeographyamoA
spellingShingle Steven J Biller
Steven J Biller
Annika C Mosier
Annika C Mosier
George F Wells
George F Wells
Christopher A Francis
Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat
Frontiers in Microbiology
Nitrification
thaumarchaeota
ammonia-oxidizing archaea
biogeography
amoA
title Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat
title_full Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat
title_fullStr Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat
title_full_unstemmed Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat
title_short Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat
title_sort global biodiversity of aquatic ammonia oxidizing archaea is partitioned by habitat
topic Nitrification
thaumarchaeota
ammonia-oxidizing archaea
biogeography
amoA
url http://journal.frontiersin.org/Journal/10.3389/fmicb.2012.00252/full
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