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Phylogenetic and Guanine-Cytosine Content Analysis of Symbiobacterium thermophilum Genes
Joint Authors
Yun, Choong-Soo
Nishida, Hiromi
Source
International Journal of Evolutionary Biology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-12-12
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Although the bacterium Symbiobacterium thermophilum has a genome with a high guanine-cytosine (GC) content (69%), it belongs to a low GC content bacterial group.
We detected only 18 low GC content regions with 5 or more consecutive genes whose GC contents were below 65% in the genome of this organism.
S.
thermophilum has 66 transposase genes, which are markers of transposable genetic elements, and 38 (58%) of them were located in the low GC content regions, suggesting that Symbiobacterium has a similar gene silencing system as Salmonella.
The top hit (best match) analyses for each Symbiobacterium protein showed that putative horizontally transferred genes and vertically inherited genes are scattered across the genome.
Approximately 25% of the 3338 Symbiobacterium proteins have the highest similarity with the protein of a phylogenetically distant organism.
The putative horizontally transferred genes also have a high GC content, suggesting that Symbiobacterium has gained many DNA fragments from phylogenetically distant organisms during the early stage of Firmicutes evolution.
After acquiring genes, Symbiobacterium increased the GC content of the horizontally transferred genes and thereby maintained a genome with a high GC content.
American Psychological Association (APA)
Nishida, Hiromi& Yun, Choong-Soo. 2010. Phylogenetic and Guanine-Cytosine Content Analysis of Symbiobacterium thermophilum Genes. International Journal of Evolutionary Biology،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-486858
Modern Language Association (MLA)
Nishida, Hiromi& Yun, Choong-Soo. Phylogenetic and Guanine-Cytosine Content Analysis of Symbiobacterium thermophilum Genes. International Journal of Evolutionary Biology No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-486858
American Medical Association (AMA)
Nishida, Hiromi& Yun, Choong-Soo. Phylogenetic and Guanine-Cytosine Content Analysis of Symbiobacterium thermophilum Genes. International Journal of Evolutionary Biology. 2010. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-486858
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486858