Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (4): 220-231. doi: 10.7668/hbnxb.20192944

Special Issue: Animal husbandry Biotechnology Hot Article

• Animal Husbandry ·Fisheries·Veterinarian • Previous Articles     Next Articles

Screening Candidate Genes Related to Meat Quality Traits in Sheep Based on Transcriptome

LIANG Peng, ZHANG Wen, FENG Dengzhen , QIANG Hao, RONG Xuan, MENG Ke   

  1. School of Agriculture,Ningxia University,Yinchuan 750021,China
  • Received:2022-03-28 Published:2022-08-28
  • Contact: FENG Dengzhen

Abstract:

The aim of this study was to analyze the variation in meat quality and expression of intramuscular genes between Tan sheep,Dorper sheep and Small-tailed han sheep,and to preliminarily reveal the molecular mechanisms underlying the differences in their meat quality traits and also provide a theoretical basis for the selection and improvement of other sheep breeds. The meat quality of 8-month-old Dorper sheep,Tan sheep and Small-tailed han sheep was analyzed and compared,and the Illumina HiSeqTM 4000 platform was used to sequence and analyze the transcriptome of the longest dorsal muscle tissue to explore the regulatory genes associated with the differences in their meat quality traits. The results showed that a total of 820 differentially expressed genes were screened,including 99 between Dorper sheep and Tan sheep,436 between Dorper sheep and Small-tailed han sheep and 552 between Tan sheep and Small-tailed sheep. The results of GO functional enrichment analysis of the differential genes showed that each comparison group was significantly enriched in 224,517 and 657 GO entries;and the KEGG pathway enrichment analysis showed that DEGs were enriched in cAMP,MAPK,AMPK,purine metabolism,glycerophospholipid metabolism,amino acid and fatty acid metabolism and glycolysis/gluconeogenesis signalling pathways,further screening for candidate genes related to meat quality regulation and flavor substance metabolism such as FOS,PLA2G4E,LPIN1,AMPD1,AMPD3, NT5C1A,GPI,PFKM and PKM. Real-time fluorescence quantitative PCR validation of several randomly selected differential genes showed consistent expression trends with the transcriptome sequencing results,indicating the reliability of the sequencing results. These differential genes obtained in this study can be used as basic information for the breeding of new breeds(lines)of Ningxia high-quality meat sheep.

Key words: Sheep, Candidate genes, Transcriptome, Meat quality, qRT-PCR

Cite this article

LIANG Peng, ZHANG Wen, FENG Dengzhen, QIANG Hao, RONG Xuan, MENG Ke. Screening Candidate Genes Related to Meat Quality Traits in Sheep Based on Transcriptome[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(4): 220-231. doi: 10.7668/hbnxb.20192944.

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