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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0095380
论文题名:	Genomic and Metabolic Diversity of Marine Group I Thaumarchaeota in the Mesopelagic of Two Subtropical Gyres
作者:	Brandon K. Swan; Mark D. Chaffin; Manuel Martinez-Garcia; Hilary G. Morrison; Erin K. Field; Nicole J. Poulton; E. Dashiell P. Masland; Christopher C. Harris; Alexander Sczyrba; Patrick S. G. Chain; Sergey Koren; Tanja Woyke; Ramunas Stepanauskas
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-4-17
卷:	9, 期:4
语种:	英语
英文关键词:	Oceans ; Sequence analysis ; Genomic databases ; Sequence alignment ; Sequence assembly tools ; Genomic library construction ; Ribosomal RNA ; Protein metabolism
英文摘要:	Marine Group I (MGI) Thaumarchaeota are one of the most abundant and cosmopolitan chemoautotrophs within the global dark ocean. To date, no representatives of this archaeal group retrieved from the dark ocean have been successfully cultured. We used single cell genomics to investigate the genomic and metabolic diversity of thaumarchaea within the mesopelagic of the subtropical North Pacific and South Atlantic Ocean. Phylogenetic and metagenomic recruitment analysis revealed that MGI single amplified genomes (SAGs) are genetically and biogeographically distinct from existing thaumarchaea cultures obtained from surface waters. Confirming prior studies, we found genes encoding proteins for aerobic ammonia oxidation and the hydrolysis of urea, which may be used for energy production, as well as genes involved in 3-hydroxypropionate/4-hydroxybutyrate and oxidative tricarboxylic acid pathways. A large proportion of protein sequences identified in MGI SAGs were absent in the marine cultures Cenarchaeum symbiosum and Nitrosopumilus maritimus, thus expanding the predicted protein space for this archaeal group. Identifiable genes located on genomic islands with low metagenome recruitment capacity were enriched in cellular defense functions, likely in response to viral infections or grazing. We show that MGI Thaumarchaeota in the dark ocean may have more flexibility in potential energy sources and adaptations to biotic interactions than the existing, surface-ocean cultures.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0095380&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/19126
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0095380.PDF（1210KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America;Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America;Department of Biology, Colby College, Waterville, Maine, United States of America;Department of Physiology, Genetics and Microbiology, University of Alicante, Alicante, Spain;Josephine Bay Paul Center for Molecular Biology and Evolution, Marine Biological Laboratory, Massachusetts, United States of America;Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America;Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America;Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America;Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America;Center for Biotechnology, Bielefeld University, Bielefeld, Germany;Genome Science Group, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America;Joint Genome Institute, Walnut Creek, California, United States of America;Center for Bioinformatics and Computational Biology, University of Maryland, College Park, Maryland, United States of America;National Biodefense Analysis and Countermeasures Center, Frederick, Maryland, United States of America;Joint Genome Institute, Walnut Creek, California, United States of America;Single Cell Genomics Center, Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine, United States of America

Recommended Citation:

Brandon K. Swan,Mark D. Chaffin,Manuel Martinez-Garcia,et al. Genomic and Metabolic Diversity of Marine Group I Thaumarchaeota in the Mesopelagic of Two Subtropical Gyres[J]. PLOS ONE,2014-01-01,9(4)

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