Molecular characterization, expression pattern and association analysis of the porcine BTG2 gene.
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 × 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.
Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, College of Animal Sciences, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
X Y
XY
Mo
J
J
Lan
Q Z
QZ
Jiao
Y Z
YZ
Xiong
B
B
Zuo
F E
FE
Li
D Q
DQ
Xu
M G
MG
Lei
D000595:Amino Acid Sequence; D019943:Amino Acid Substitution / Q000235:genetics; D000818:Animals; D000831:Animals, Newborn; D001483:Base Sequence; D003001:Cloning, Molecular; D003433:Crosses, Genetic; D005260:Female; D005333:Fetus / Q000378:metabolism; D020869:Gene Expression Profiling; D018507:Gene Expression Regulation, Developmental; D005787:Gene Frequency / Q000235:genetics; D056726:Genetic Association Studies; D008297:Male; D008460:Meat; D008969:Molecular Sequence Data; D009154:Mutation / Q000235:genetics; D011110:Polymorphism, Genetic; D019655:Quantitative Trait, Heritable; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D017422:Sequence Analysis, DNA; D034421:Sus scrofa / Q000235:genetics*; D013997:Time Factors; D025521:Tumor Suppressor Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism
D012333:RNA, Messenger; D025521:Tumor Suppressor Proteins