JOURNAL OF
APPLIED GENETICS
        
Impact factor'2009=1.324

Contents



Journal of Applied Genetics 51(2), 2010, pp. 199-202

Novel 12-bp deletion in the coding region of the bovine NPM1 gene affects growth traits

Y-Z. Huang, E-P. Zhang, H. Chen, J. Wang, Z-J. Li, Y-T. Huai, L. Ma, X-Y. Lan, G. Ren, C-Z. Lei, X-T. Fang, J-Q. Wang


Abstract: The nucleophosmin 1 gene (NPM1) encodes a multifunctional nucleolar phosphoprotein that plays a crucial role in the control of various aspects of cell growth and homeostasis. In this study, the coding region of the NPM1 gene was screened in 1035 individuals of 4 Chinese cattle breeds by DNA sequencing and polyacrylamide gel electrophoresis. A novel 12-bp deletion mutation was identified in the coding region of the NPM1 gene. The PCR products of primer NPM1-P2 exhibited 3 genotypes and 2 alleles: 178 bp (denoted as W) and 166 bp (denoted as D). Genotype DD and allele D were predominant in the studied populations. Association analysis with growth traits in the Nanyang breed (N = 265) showed that the animals with genotype DD had significantly greater birth weight, body weight, body length, and heart girth than those with genotype WD (P < 0.01 or P < 0.05) at birth and after 6 months and 12 months, but not at 18 and 24 months of age. Results of this study suggest that the NPM1 gene is a candidate gene for growth traits in cattle

Key words: cattle, growth traits, deletion mutation, NPM1 gene

Correspondence: H. Chen, No.22 Xinong Road, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; e-mail: chenhong1212@263.net

Full text article: