China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (3): 926-935.doi: 10.16431/j.cnki.1671-7236.2024.03.004

• Biotechnology • Previous Articles    

Cloning and Bioinformatics Analysis of myogenin Gene in Guizhou White Goat

SONG Xingchao, MENG Jinzhu, ZHAO Yuanyuan, WU Zhenyang, AN Qingming   

  1. Guizhou Provincial Key Laboratory for Biodiversity Conservation and Utilization in the Fanjing Mountain Region, College of Agroforesry Engineering and Planning, Tongren University, Tongren 554300, China
  • Received:2023-08-18 Published:2024-02-27

Abstract: 【Objective】 This study was aimed to clone myogenin gene in Guizhou White goat and analyze the structure characteristics by bioinformatics,so as to provide an important reference basis for further exploring molecular regulation mechanism of muscle development of goat.【Method】 The blood genomic DNA of Guizhou White goat was used as template,four pairs of specific primers were designed,and the complete coding sequence of myogenin gene in Guizhou White goat was obtained by PCR amplification,Sanger sequencing and sequence assembly method.The molecular structure characteristics of myogenin gene,such as composition of nucleotide and amino acid sequence,phosphorylation sites,key domains and functional motifs were analyzed by BioEdit 7.0,NetPhos 3.1,Conserved Domains Search,SMART and Motif Scan softwares,respectively.The sequence similarity comparison of myogenin gene among 15 Artiodactyla species and phylogenetic tree construction were carried out by DNAStar Lasergene,DNAMAN 8.0 and Mega 5.0 softwares.【Result】 The length of myogenin gene sequence in Guizhou White goat was 2 424 bp(obtain GenBank accession No.:HZ53289),which was consisted of 3 exons,2 introns and partial of 5'-UTR and 3'-UTR,and was 471,82,122,765,589,135 and 260 bp in length,respectively.The length of coding region was 675 bp,which was encoded 224 amino acids.The deduced amino acid sequence analysis showed that 1-86 amino acids were the unique basic domain of myogenic determining factors family,81-139 amino acids were the helix-loop-helix DNA binding domain,and 160-170 amino acids were the low complexity regions.There were 21 phosphorylation sites and functional motif structure such as nuclear localization signal protein.Amino acid sequence alignment showed that six cysteine residues,one nuclear localization signal protein and one low complexity region were completely conserved among 15 Artiodactyla species.Sequence similarity and molecular phylogenetic analysis all showed that Guizhou White goat myogenin gene had the closest genetic relationship with Boer goat,Hu sheep and Marco Polo sheep.【Conclusion】 The myogenin gene of Guizhou White goat was successfully cloned,with a size of 2 424 bp in length and encoding 224 amino acids,which contained the Basic and H-L-H domains.These results could provide theoretical reference for further exploring the molecular regulation mechanism of muscle growth and development of goat.

Key words: Guizhou White goat; myogenin gene; cloning; molecular phylogenetic evolution; bioinformatics

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