Adaptation, Ecology, and Evolution of the Halophilic Stromatolite Archaeon Halococcus hamelinensis Inferred through Genome Analyses
Joint Authors
Gudhka, Reema K.
Burns, Brendan P.
Neilan, Brett A.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-29
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Halococcus hamelinensis was the first archaeon isolated from stromatolites.
These geomicrobial ecosystems are thought to be some of the earliest known on Earth, yet, despite their evolutionary significance, the role of Archaea in these systems is still not well understood.
Detailed here is the genome sequencing and analysis of an archaeon isolated from stromatolites.
The genome of H.
hamelinensis consisted of 3,133,046 base pairs with an average G+C content of 60.08% and contained 3,150 predicted coding sequences or ORFs, 2,196 (68.67%) of which were protein-coding genes with functional assignments and 954 (29.83%) of which were of unknown function.
Codon usage of the H.
hamelinensis genome was consistent with a highly acidic proteome, a major adaptive mechanism towards high salinity.
Amino acid transport and metabolism, inorganic ion transport and metabolism, energy production and conversion, ribosomal structure, and unknown function COG genes were overrepresented.
The genome of H.
hamelinensis also revealed characteristics reflecting its survival in its extreme environment, including putative genes/pathways involved in osmoprotection, oxidative stress response, and UV damage repair.
Finally, genome analyses indicated the presence of putative transposases as well as positive matches of genes of H.
hamelinensis against various genomes of Bacteria, Archaea, and viruses, suggesting the potential for horizontal gene transfer.
American Psychological Association (APA)
Gudhka, Reema K.& Neilan, Brett A.& Burns, Brendan P.. 2015. Adaptation, Ecology, and Evolution of the Halophilic Stromatolite Archaeon Halococcus hamelinensis Inferred through Genome Analyses. Archaea،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1053922
Modern Language Association (MLA)
Gudhka, Reema K.…[et al.]. Adaptation, Ecology, and Evolution of the Halophilic Stromatolite Archaeon Halococcus hamelinensis Inferred through Genome Analyses. Archaea No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1053922
American Medical Association (AMA)
Gudhka, Reema K.& Neilan, Brett A.& Burns, Brendan P.. Adaptation, Ecology, and Evolution of the Halophilic Stromatolite Archaeon Halococcus hamelinensis Inferred through Genome Analyses. Archaea. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1053922
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053922