Nucleotide variability of the porcine SERPINA6 gene and the origin of a putative causal mutation associated with meat quality.
Anim Genet
; 42(3): 235-41, 2011 Jun.
Article
en En
| MEDLINE
| ID: mdl-21054451
ABSTRACT
The serpin peptidase inhibitor, clade A, member 6 gene (SERPINA6), also known as corticosteroid-binding globulin or CBG, is involved in obesity and stress sensitivity. Previous studies have reported putative causal mutations within that gene in the porcine species. To characterize a hypothetical selective footprint, we have resequenced approximately 6 kb of coding and non-coding fragments in 20 pigs comprising domestic breeds and wild boars from Asia and Europe. Nucleotide variability was found to be far greater within Asian pig breeds than European breeds (π = 1% vs. 0.05%, respectively), which is consistent with pig evolutionary history. The putative causal amino acid substitution p.Gly307Arg (SNP c.919G>A) associated with meat quality (drip loss) was only detected in European domestic pig breeds, suggesting a very recent mutation that appeared after domestication in Europe. No support for positive selection was detected, as no reduction in levels of diversity surrounding the mutation was found in lean breeds with respect to wild boar.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Estrés Fisiológico
/
Transcortina
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Carne
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Mutación
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Obesidad
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
Anim Genet
Asunto de la revista:
GENETICA
/
MEDICINA VETERINARIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
España