Identification and Genetic Effect of Haplotypes in the Distal Promoter Region of Chicken CCT6A Gene Associated with Egg Production Traits

Autor: Chunhong Yang, Qingqing Wei, Li Kang, Hui Tang, Guiyu Zhu, Xinxing Cui, Yuxia Chen, Yunliang Jiang
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: The Journal of Poultry Science, Vol 53, Iss 2, Pp 111-117 (2016)
Druh dokumentu: article
ISSN: 1346-7395
1349-0486
DOI: 10.2141/jpsa.0140113
Popis: The chaperonin containing TCP-1 complex protein 1 subunit zeta (CCT6A) is the only cytosolic chaperonin in eukaryotes assisting in the folding of cytoplasmic proteins. Previous study revealed that the mRNA expression of chicken CCT6A gene was remarkably elevated in the sexually mature ovaries. However, the mechanism underlying chicken CCT6A expression changes remains largely unknown. In this study, haplotypes caused by two single nucleotide polymorphisms (SNPs) of chicken CCT6A gene promoter (g.-2215 T>C and g.-1959 T>C) were identified and their associations with egg production traits as well as effects on gene expression were analyzed. Altogether four haplotypes including A (C-2215-T-1959), B (C-2215-C-1959), C (T-2215-T-1959) and D (T-2215-C-1959) were detected in all of the five chicken populations. Diplotypes AA, AD and DD were predominant in Xinyang brown hens, among which diplotype AD was associated with higher egg number at the age of 28 weeks old (E28) (P
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