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Position: Home > Articles > Study on polymorphisms of pituitary specific transcription factor 1 gene in pigs Animal Husbandry & Veterinary Medicine 2005,37 (5) 9-12

猪垂体特异性转录因子基因多态性的研究

作  者:
俞沛初;郭传甲;乔中东;华修国;艾晓杰
单  位:
山西农业大学动物科技学院;上海交通大学农业与生物学院;上海交通大学医学院
关键词:
猪;PIT-1基因;外显子;单核苷酸多态性
摘  要:
对香猪、上海白猪、大约克夏猪的垂体特异性转录因子(PIT-1)基因进行了单核苷酸多态性(SNP)分析。结果显示:在3个猪种PIT-1基因的第5和第6外显子中均未发现SNP;而在第4外显子中出现SNP,即在公布序列的第272位上有1/2的大约克夏猪为碱基C,其余1/2的大约克夏猪和全部的香猪、上海白猪均发生了C→T突变,这是一个沉默突变。根据研究结果推测,PIT-1基因第4外显子中的碱基突变及这3个外显子的序列状况可能与香猪的矮小性无关。
译  名:
Study on polymorphisms of pituitary specific transcription factor 1 gene in pigs
作  者:
YU Pei-chu~1, GUO Chuan-jia~2, QIAO Zhong-dong~3, HUA Xiu-guo~1, AI Xiao-jie~1(1.School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 201101, China;2.School of Animal Science and Technology, Shanxi Agricultural University, Taigu 030801, China;3.Medical School, Shanghai Jiaotong University, Shanghai 200030, China)
关键词:
Xiang pig;PIT-1 gene;exon;SNP
摘  要:
The single nucleotide polymorphisms (SNP) of pituitary specific transcription factor 1(PIT-1)gene was analyzed in Xiang pig, Shanghai White pig and Yorkshire pig. The results showed that no SNP was found in the fifth and sixth exon of PIT-1 gene in the three breeds of pigs, and one SNP was found in the fourth exon. The mutation of CT in the fourth exon was revealed in 272 in the published PIT-1 gene sequence in the experimental pigs except 1/2 Yorkshire pigs, and it was a silent mutation. The results demonstrated that the mutation in the fourth exon and DNA sequence in the three exons of PIT-1 gene were probably independent of dwarfism of Xiang pigs.

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