Single nucleotide polymorphism analysis in meat-production related genes in broiler chickens

Dátum
Szerzők
Szalai, Klaudia
Tempfli, Károly
Lencsés-Varga, Erika
Bali Papp, Ágnes
Folyóirat címe
Folyóirat ISSN
Kötet címe (évfolyam száma)
Kiadó
Absztrakt
In broiler chickens, the intensive selection fo growth rate, feed efficiency, body composition (breast muscle weight) traits in the last decades was successful. To improve economically important characteristics,it is possible to use molecular markers associated with meat production traits. The aim ofvthis study was to examine genotype polymorphisms in ROSS 308 broilers for thyroid hormone responsive Spot14α, insulin-like growth factor 1 (IGF1), IGF-binding protein 2 (IGFBP2), somatostatin (SST) and prolactin (PRL) genes. A further goal of this investigation was to study the relationship between the polymorphisms and phenotypic characteristics. In the investigated broiler population, the frequency for CC homozygous genotype was 0.77 in Spot14α (AY568628), AA homozygous genotype was 0.80 in IGF1 (M74176), GG homozygous genotype was 0.85 in IGFBP2 (U15086), DD homozygous genotype was 0.60 in PRL (FJ663023 or FJ434669). Only the AA homozygous genotype was found in SST (X60191). Chickens with AC genotype in Spot14α, and with GG genotype in IGFBP2 had higher body weight (BW) and carcass weight (CW), compared to CC and GT genotypes. However, the differences were not significant (P>0.05). There was significant association (P<0.05) between PRL genotypes and body and carcass weight, where chicken with homozygous DD surpassed individuals with homozygous II genotypes.
Leírás
Kulcsszavak
broiler chicken, body composition trait, allele and genotype frequency, Spot14α, IGF1, IGFBP2, SST, PRL
Forrás