Comparative genomic mapping of uncharacterized canine retinal ESTs to identify novel candidate genes for hereditary retinal disorders.
Mol Vis
; 15: 927-36, 2009 May 09.
Article
em En
| MEDLINE
| ID: mdl-19452016
ABSTRACT
PURPOSE:
To identify the genomic location of previously uncharacterized canine retina-expressed expressed sequence tags (ESTs), and thus identify potential candidate genes for heritable retinal disorders.METHODS:
A set of over 500 retinal canine ESTs were mapped onto the canine genome using the RHDF(5000-2) radiation hybrid (RH) panel, and the resulting map positions were compared to their respective localization in the CanFam2 assembly of the canine genome sequence.RESULTS:
Unique map positions could be assigned for 99% of the mapped clones, of which only 29% showed significant homology to known RefSeq sequences. A comparison between RH map and sequence assembly indicated some areas of discrepancy. Retinal expressed genes were not concentrated in particular areas of the canine genome, and also were located on the canine Y chromosome (CFAY). Several of the EST clones were located within areas of conserved synteny to human retinal disease loci.CONCLUSIONS:
RH mapping of canine retinal ESTs provides insight into the location of potential candidate genes for hereditary retinal disorders, and, by comparison with the assembled canine genome sequence, highlights inconsistencies with the current assembly. Regions of conserved synteny between the canine and the human genomes allow this information to be extrapolated to identify potential positional candidate genes for mapped human retinal disorders. Furthermore, these ESTs can help identify novel or uncharacterized genes of significance for better understanding of retinal morphology, physiology, and pathology.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Retina
/
Doenças Retinianas
/
Etiquetas de Sequências Expressas
/
Mapeamento de Híbridos Radioativos
/
Cães
/
Proteínas do Olho
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Mol Vis
Assunto da revista:
BIOLOGIA MOLECULAR
/
OFTALMOLOGIA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Estados Unidos