China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (5): 1662-1670.doi: 10.16431/j.cnki.1671-7236.2022.05.007

• Biotechnology • Previous Articles     Next Articles

Transcriptome Analysis of Porcine Kidney with ZBED6 Gene Deletion

TIAN Wenjie1,2, WANG Dandan2, WANG Shengnan2, MA Yuehui2, JIANG Lin2, SONG Ziyi1   

  1. 1. College of Animal Science and Technology, Guangxi University, Nanning 530000, China;
    2. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2021-12-03 Online:2022-05-05 Published:2022-04-29

Abstract: 【Objective】 This study was aimed to investigate the effect of zinc finger BED domain-containing protein 6 (ZBED6) gene knockout on gene transcription and expression in porcine kidney,and analyze the target genes and pathways of ZBED6 gene regulating porcine kidney metabolism.【Method】 Kidney tissues were collected from 8-month-old ZBED6 gene knockout Bama Xiang pigs (ZBED6 KO) and age-matched wildtype Bama Xiang pigs (WT) (n=3).The total RNA was extracted and Real-time quantitative PCR was used to analyze the expression of insulin-like growth factor 2 (IGF2) and other differentially expressed genes.Illumina Hiseq high-throughput sequencing technology was performed to evaluate the mRNA of kidney in ZBED6 Ko and WT pigs.Sus scrofa 11.1 was used as the reference genome sequence,the differentially expressed genes were analyzed and filtered by the softwares TopHat,Cufflink,Cuffmerge and Cuffdiff.Hierarchical clustering analysis and KEGG pathway enrichment of the differentially expressed genes were also performed.The reliability of differentially expressed genes in RNA-Seq results was verified by Real-time quantitative PCR.【Result】 Real-time quantitative PCR results showed that the expression of IGF2 gene mRNA in kidney of ZBED6 KO pigs was significantly higher than that of WT pigs (P<0.05).The sequencing results showed that 78 G data was obtained,and at least 87.3% of the reads were mapped to porcine genome,suggesting the quality of sequencing was high.RNA-Seq analysis showed that a total of 25 213 genes were detected in kidney of WT and ZBED6 KO pigs.Under the criteria of adjust-P<0.05 and log2|FoldChange|>2,299 differentially expressed genes were obtained,including 103 up-regulated genes and 199 down-regulated genes.Heatmap and PCA results showed that the gene expression pattern was similar within groups,and was different between groups.KEGG pathway enrichment analysis displayed that the differentially expressed genes were mainly involved in retinol and other metabolic pathways,especially,9 differentially expressed genes were enriched to the retinol metabolism pathway,including CYP2C42,AOX1,ENSSSCG00000036274,RDH16,CYP2A19,ENSSSCG00000022724,CYP26B1,CYP1A1 and RDH5,7 genes (CYP2C42,AOX1,RDH16,CYP2A19,CYP26B1,CYP1A1 and RDH5) of which were further validated by Real-time quantitative RCR,confirmed the reliability of RNA-Seq results.【Conclusion】 The effect of ZBED6 gene knockout on kidney metabolism of Bama Xiang pigs was analyzed by RNA-Seq technology in this study,it affected its metabolic related signal pathway by regulating the expression of multiple downstream genes in kidney,which provided materials for clarifying the function of ZBED6 gene.

Key words: pigs; ZBED6 gene; kidney; metabolism; RNA-Seq; differentially expressed genes

CLC Number: