Biotechnology Bulletin ›› 2016, Vol. 32 ›› Issue (3): 98-104.doi: 10.13560/j.cnki.biotech.bull.1985.2016.03.016

• Research report • Previous Articles     Next Articles

cDNA Cloning, Sequence Analysis and Tissue Expression of Gene MSH4 and MSH5 in Goats

ZHENG Jie, LIU Shuang, LUO Bin, HU Liang, YANG Ke-wei, ZI Xiang-dong   

  1. The Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest University for Nationalities, Chengdu 610041
  • Received:2015-06-29 Online:2016-03-24 Published:2016-03-25

Abstract: The total RNA of ovary, endometrium, oviduct and pituitary extracted from 5 Tibetan goats and 5 Jintang black goats in the period of estrus were used to clone and analyze cDNA sequences of gene MSH4 and MSH5 by RT-PCR, and their expression levels in different tissues were determined by real-time PCR. The result showed that the coding region of gene MSH4 from Tibetan goat and Jintang black goat were 2 499 bp, encoding 832 amino acids;there were 5 base variations between two breeds, leading to 3 differences of amino acid. The coding region of gene MSH5 from Tibetan goat and Jintang black goat were 2 496 bp, encoding 831 amino acids;there were 9 base variations between two breeds, leading to 5 differences in amino acid. The nucleotide sequences of coding region of gene MSH4 from Tibetan goat were 99.8%, 99.8%, 99.4%, 98.1%, 94.4%, 85.1%, 84.7% and 93.5% homology with that of Jintang black goat, Capra hircus, Ovis aries, Bos taurus, Equus caballus, Mus musculus, Rattus norvegicus, and Homo sapiesn, respectively. The nucleotide sequences of coding region of gene MSH5 from Tibetan goat were 99.6%, 99.6%, 97.3%, 88.0%, 85.8%, 85.3% and 90.2% homology with that of Jintang black goat, C. hircus, B. taurus, Canis lupus familiaris, M. musculus, R. norvegicus, and H. sapiens, respectively. The mRNA of gene MSH4 and MSH5 were all expressed in ovary, endometrium, oviduct and pituitary of two breeds of goat, but there was no significant difference between two breeds(P>0.05). The results reveal that both gene MSH4 and MSH5 are conservative in the course of animal evolution, and the role of their effect on prolificacy of goats needs to be further studied.

Key words: Tibetan goat, Jintang black goat, MSH4, MSH5, cloning, qPCR