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Asian-Australas J Anim Sci > Volume 19(9); 2006 > Article
Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2006;19(9): 1257-1261.
DOI: https://doi.org/10.5713/ajas.2006.1257    Published online August 2, 2006.
cDNA Cloning, Tissue Expression and Association of Porcine Pleiomorphic Adenoma Gene-like 1 (PLAGL1) Gene with Carcass Traits
F. W. Zhang, H. C. Cheng, C. Y. Deng*, Y. Z. Xiong, F. E. Li, M. G. Lei
Correspondence:  C. Y. Deng,
Abstract
Pleiomorphic adenoma gene-like1 (PLAGL1) encodes a zinc-finger (ZF) protein with seven ZFs of the C2H2-type which is a regulator of apoptosis and cell cycle arrest, and also regulates the secretion of insulin. In both human and mouse, PLAGL1 is a candidate gene for tumor suppressor and transient neonatal diabetes mellitus (TNDM). In this study, a 2,238 bp fragment covering the complete coding region was obtained and deposited to GenBank (accession number: DQ288899). The reverse transcriptase-polymerase chain reaction (RT-PCR) indicated that PLAGL1 was expressed almost equally in heart, liver, spleen, lung, kidney, stomach, small intestine, skeletal muscle, fat, uterus and ovary. Comparing the sequences of Large White and Meishan pigs, a C-T transition in exon 6 was found. The polymorphism could be detected by TaqI and was genotyped in five purebreds (Large White, Landrace, Meishan, Tongcheng and Bamei). Association analysis was performed between the polymorphism and carcass traits in 276 pigs of a ??Large White ??Meishan??F2 resource population. As a consequence, significant associations of the genotypes with shoulder backfat thickness (SFT) and internal fat rate (IFR) were observed. Pigs with TT genotype had low SFT and high IFR compared with TC or CC genotypes.
Keywords: PLAGL1; Porcine; Polymorphism; Carcass Traits


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