Journal
MOLECULAR BIOLOGY REPORTS
Volume 38, Issue 7, Pages 4389-4396Publisher
SPRINGER
DOI: 10.1007/s11033-010-0566-4
Keywords
Pig; B-cell translocation 2 gene; Differential expression; Association analysis
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Funding
- National High Technology Research and Development Program of China [2006AA10Z1D6]
- National Natural Science Foundation of China [30400313]
- Education Ministry of China [IRT0831]
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B-cell translocation gene 2 (BTG2), a member of the B-cell translocation gene family with anti-proliferative properties, have been characterized to be involved in cell growth, differentiation and survival. In this study, we cloned the full length sequences of cDNA and genomic DNA of BTG2 gene from the porcine skeletal muscle. Spatial expression analysis showed that the porcine BTG2 gene is expressed predominantly in muscle. Temporal expression analysis in longissimus dorsi muscle demonstrated that the expression of BTG2 gene has the highest expression at 60 days old in Large White while with a peak expression at 120 days old in Meishan. Temporal analysis also revealed that the expression of BTG2 gene is generally higher in Large White than in Meishan at all the developmental stages tested (65 days of conception and 3, 35, 60, 120, and 180 days of postnatal). A single nucleotide polymorphism (G417C) in the intron of BTG2 gene was then detected by PCR-RFLP in Large White x Meishan F2 resource population and association analysis suggested that this polymorphic site had significant association (P < 0.05) with the buttock fat thickness, fat percentage, lean muscle percentage, ratio of lean to fat and carcass length.
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