Prolactin, dopamine receptor D1 and Spot14α polymorphisms affect production traits of Hungarian Yellow hens

Six potential candidate polymorphisms were investigated in Hungarian Yellow hens, one of seven indigenous chicken breeds registered in Hungary. In this study, 436 individuals were genotyped for the 24-base-pair indel in prolactin (PRL), the G123A single nucleotide polymorphism (SNP) in dopamine rece...

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Bibliographic Details
Published in:Livestock science 2015-04, Vol.174, p.26-30
Main Authors: Tempfli, Károly, Konrád, Szilárd, Kovácsné Gaál, Katalin, Pongrácz, László, Bali Papp, Ágnes
Format: Article
Language:English
Subjects:
Chicken growth
DRD1
Egg production
Prolactin
Somatostatin
Spot14α
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Summary:Six potential candidate polymorphisms were investigated in Hungarian Yellow hens, one of seven indigenous chicken breeds registered in Hungary. In this study, 436 individuals were genotyped for the 24-base-pair indel in prolactin (PRL), the G123A single nucleotide polymorphism (SNP) in dopamine receptor D1 (DRD1), and the A213C SNP in thyroid hormone responsive spot14alpha (Spot14α) genes, respectively. In addition, promising SNPs in insulin-like growth factor 1 (IGF1), insulin-like growth factor-binding protein 2 (IGFBP2), and somatostatin (SST) genes were also analysed; however, only one allele at each locus occurred in the population. There were polymorphisms for PRL, DRD1 and Spot14α, each with high heterozygosity (0.50, 0.49, and 0.47, respectively). Observed genotype frequencies did not differ (P>0.05) from the expected assuming Hardy–Weinberg equilibrium (HWE). The PRL genotype was associated with egg production intensity (P
ISSN:1871-1413
1878-0490
DOI:10.1016/j.livsci.2015.01.012