NDLI: Oxygen and Guanine–Cytosine Profiles in Marine Environments

Content Provider	Springer Nature Link
Author	Romero, Héctor Pereira, Emilia Naya, Hugo Musto, Héctor
Copyright Year	2009
Abstract	One of the historic debates in molecular evolution concerns the strong variation in the genomic guanine–cytosine (GC) content of prokaryotes, which ranges from approximately 20–75%: Is this factor selectively neutral, or is it the result of natural selection? In a previous article published by our group, we showed that inside well-defined taxonomic groups of prokaryotes, strictly aerobic organisms tend to display higher genomic GC levels than strictly anaerobic species. In the present study, we examined the GC content of fragments of DNA obtained from microbial communities along a well-defined environmental gradient: a 4,000-m vertical profile in the North Pacific subtropical gyre. The patterns of GC distribution might be associated with oxygen concentrations in the seawater column. These results give further support to the link between a physiologic trait (aerobic respiration) and genomic GC content.
Starting Page	203
Ending Page	206
Page Count	4
File Format	PDF
ISSN	00222844
Journal	Journal of Molecular Evolution
Volume Number	69
Issue Number	2
e-ISSN	14321432
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-06-25
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aerobiosis GC content Metagenomics Animal Genetics and Genomics Plant Genetics & Genomics Plant Sciences Microbiology Evolutionary Biology Cell Biology
Content Type	Text
Resource Type	Article
Subject	Genetics Molecular Biology Ecology, Evolution, Behavior and Systematics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Oxygen and Guanine–Cytosine Profiles in Marine Environments

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