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Parallel Evolution and Horizontal Gene Transfer of the pst Operon in Firmicutes from Oligotrophic Environments
Joint Authors
Olmedo, Gabriela
Souza, Valeria
Moreno-Letelier, Alejandra
Martinez-Castilla, Leon
Eguiarte, Luis E.
Source
International Journal of Evolutionary Biology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-03-03
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The high affinity phosphate transport system (pst) is crucial for phosphate uptake in oligotrophic environments.
Cuatro Cienegas Basin (CCB) has extremely low P levels and its endemic Bacillus are closely related to oligotrophic marine Firmicutes.
Thus, we expected the pst operon of CCB to share the same evolutionary history and protein similarity to marine Firmicutes.
Orthologs of the pst operon were searched in 55 genomes of Firmicutes and 13 outgroups.
Phylogenetic reconstructions were performed for the pst operon and 14 concatenated housekeeping genes using maximum likelihood methods.
Conserved domains and 3D structures of the phosphate-binding protein (PstS) were also analyzed.
The pst operon of Firmicutes shows two highly divergent clades with no correlation to the type of habitat nor a phylogenetic congruence, suggesting horizontal gene transfer.
Despite sequence divergence, the PstS protein had a similar 3D structure, which could be due to parallel evolution after horizontal gene transfer events.
American Psychological Association (APA)
Moreno-Letelier, Alejandra& Olmedo, Gabriela& Eguiarte, Luis E.& Martinez-Castilla, Leon& Souza, Valeria. 2011. Parallel Evolution and Horizontal Gene Transfer of the pst Operon in Firmicutes from Oligotrophic Environments. International Journal of Evolutionary Biology،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-497531
Modern Language Association (MLA)
Moreno-Letelier, Alejandra…[et al.]. Parallel Evolution and Horizontal Gene Transfer of the pst Operon in Firmicutes from Oligotrophic Environments. International Journal of Evolutionary Biology No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-497531
American Medical Association (AMA)
Moreno-Letelier, Alejandra& Olmedo, Gabriela& Eguiarte, Luis E.& Martinez-Castilla, Leon& Souza, Valeria. Parallel Evolution and Horizontal Gene Transfer of the pst Operon in Firmicutes from Oligotrophic Environments. International Journal of Evolutionary Biology. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-497531
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-497531