Da-Qian He, Hua-Li Wu, Hui-Ying Wang, Yi Liu, Shao-Ming Gong, Fan-Li Kong, Qing Zhu,
Ontogenic Expression Pattern and Genetic Polymorphism of the Peroxisome Proliferator-Activated Receptor (PPAR-γ) Gene in Goose Populations,
Journal of Animal and Veterinary Advances,
Volume 11,Issue 24,
2012,
Pages 4625-4631,
ISSN 1680-5593,
javaa.2012.4625.4631,
(https://makhillpublications.co/view-article.php?doi=javaa.2012.4625.4631)
Abstract: Peroxisome Proliferator-Activated Receptor γ (PPAR-γ)
was a key regulator of proliferation and preadipocyte differentiation in mammals.
The objective of this study was to investigate the effect of the PPAR-γ
gene on slaughter traits of 170 individuals from Zhejiang White geese (ZW)
and the ontogenetic expression pattern. PCR-SSCP technique was developed to
analyze coding region of the PPAR-γ gene polymorphism. The results
showed that two genotypes (AA and AG) which were the products of two alleles
(A and G) were observed. Association analysis indicated that this SNP was significantly
associated with percentage of goose leg muscle (p<0.05) and the allele A
was the predominant allele. Quantitative real-time PCR (qRT-PCR) assay measured
the PPAR-γ mRNA expression in ZW and Landes goose five tissues of different
ages (P1, P14, P21, P28, P35, P42, P49, P56 and P63). The results showed that
the PPAR-γ mRNA had the highest expression level in goose abdominal fat
and subcutaneous fat followed by lung and intestine. The PPAR-γ mRNA levels
exhibited a rise-decline change in fat tissues except for ZW subcutaneous fat.
The values in fat tissues were higher than those of other tissues at the same
goose breed (p<0.01). Besides, average values in ZW fat and liver tissues
were higher than those of Landes goose totally. These results suggested that
the PPAR-γ expressions were positively associated with goose fat development
and had a breed-related tendency. The PPAR-γ gene polymorphism could
be used in Marker Assistant Selection (MAS) as a genetic marker for goose slaughter
traits.
Keywords: Goose;PPAR-y gene;SNP;carcass traits;expression