Influence of a quantitative trait locus on mouse chromosome 19 to the light-adapted electroretinogram.
Invest Ophthalmol Vis Sci
; 49(9): 4058-63, 2008 Sep.
Article
em En
| MEDLINE
| ID: mdl-18344449
ABSTRACT
PURPOSE:
Both implicit time and amplitude of the cone-mediated electroretinographic (ERG) b-wave differ significantly between the C57BL/6JOlaHsd and 129S2/SvHsd inbred mouse strains. The purpose of this work was to undertake a quantitative genetics study to localize the gene or genes involved.METHODS:
Implicit time and amplitude of the a- and b-waves of the single-flash and flicker cone-mediated ERG were recorded as the quantitative traits in reciprocal backcrossed populations. A genome-wide scan was performed with 106 polymorphic markers. Map Manager (release QTXb20) was used to analyze the data and make phenotype-genotype correlations.RESULTS:
A quantitative trait locus (QTL) of major effect in controlling variation in both implicit time and amplitude of the cone-mediated ERG localized to the middle of chromosome 19.CONCLUSIONS:
Mapping of a QTL influencing both implicit time and b-wave amplitude of the light-adapted ERG represents an initial step toward identifying the gene(s) responsible for this phenotypic variation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Mapeamento Cromossômico
/
Locos de Características Quantitativas
/
Luz
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Invest Ophthalmol Vis Sci
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Irlanda