Vibrio chromosomes share common history.
BMC Microbiol
; 10: 137, 2010 May 10.
Article
en En
| MEDLINE
| ID: mdl-20459749
ABSTRACT
BACKGROUND:
While most gamma proteobacteria have a single circular chromosome, Vibrionales have two circular chromosomes. Horizontal gene transfer is common among Vibrios, and in light of this genetic mobility, it is an open question to what extent the two chromosomes themselves share a common history since their formation.RESULTS:
Single copy genes from each chromosome (142 genes from chromosome I and 42 genes from chromosome II) were identified from 19 sequenced Vibrionales genomes and their phylogenetic comparison suggests consistent phylogenies for each chromosome. Additionally, study of the gene organization and phylogeny of the respective origins of replication confirmed the shared history.CONCLUSIONS:
Thus, while elements within the chromosomes may have experienced significant genetic mobility, the backbones share a common history. This allows conclusions based on multilocus sequence analysis (MLSA) for one chromosome to be applied equally to both chromosomes.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Filogenia
/
Vibrionaceae
/
Cromosomas
/
Evolución Molecular
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
BMC Microbiol
Asunto de la revista:
MICROBIOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Estados Unidos