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http://dx.doi.org/10.5713/ajas.2013.13140

The Possibility of TBC1D21 as a Candidate Gene for Teat Numbers in Pigs  

Jin, S. (Department of Animal Science and Biotechnology, Chungnam National University)
Lee, J.B. (Department of Animal Science, Gyeongsang National University)
Kang, K. (Department of Animal Science and Biotechnology, Chungnam National University)
Yoo, C.K. (Department of Animal Science and Biotechnology, Chungnam National University)
Kim, B.M. (Department of Animal Science and Biotechnology, Chungnam National University)
Park, H.B. (Department of Animal Science and Biotechnology, Chungnam National University)
Lim, H.T. (Department of Animal Science and Biotechnology, Chungnam National University)
Cho, I.C. (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Maharani, D. (Faculty of Animal Science, Gadjah Mada University)
Lee, J.H. (Department of Animal Science, Gyeongsang National University)
Publication Information
Asian-Australasian Journal of Animal Sciences / v.26, no.10, 2013 , pp. 1374-1378 More about this Journal
Abstract
Based on a quantitative traits locus (QTL) study using a $F_2$ intercross between Landrace and Korean native pigs, a significant QTL affecting teat numbers in SSC7 was identified. The strong positional candidate gene, TBC1D21, was selected due to its biological function for epithelial mesenchymal cell development. Sequence analysis revealed six single nucleotide polymorphisms (SNPs) in the TBC1D21 gene. Among these, two SNP markers, one silent mutation (SNP01) for g.13,050A>G and one missense mutation (SNP04) for c.829A>T (S277C), were genotyped and they showed significant associations with teat number traits (p value = 6.38E-05 for SNP01 and p value = 1.06E-07 for SNP04 with total teat numbers). Further functional validation of these SNPs could give valuable information for understanding the teat number variation in pigs.
Keywords
QTL; SNP; SSC7; TBC1D21; Teat Number; Pig;
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