ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (5): 216-225. doi: 10.7668/hbnxb.20192262

Special Issue: Animal husbandry Biotechnology

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

Cloning and Tissue Expression Characteristics of Yak DDIT3 Gene

WU Jianfei, LIU Yu, LI Heng, JING Tian, LU Jianyuan, ZI Xiangdong   

  1. Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu 610041, China
  • Received:2021-04-08 Published:2021-10-28

Abstract: The objective of this study was to investigate the sequence and tissue expression characteristics of DNA damage inducible transcript 3(DDIT3) in female yaks. The yak DDIT3 gene was cloned by RT-PCR. The structure and function of DDIT3 protein were analyzed by bioinformatics software. The expression levels of DDIT3 gene in different tissues, and different reproductive organs and oocytes at different physiological stage of female yaks were detected by Real-time quantitative PCR(RT-qPCR). The results showed that the full-length CDS region of yak DDIT3 gene was 507 bp, which encoded 168 amino acids. Nucleotide sequence alignment showed that yak had the highest homology with bison(99.71%) and more than 88% homology with other species, indicating that DDIT3 gene was highly conservative in the process of evolution. The expression of DDIT3 gene in ovary was extremely significantly higher than that in heart, liver, kidney, spleen, lung, uterus and fallopian tube(P <0.01). In the ovary, the expression of DDIT3 gene was significantly higher during pregnancy than that during follicular phase, luteal phase and fetus stage(P <0.05), and it was significantly higher during luteal phase than that in fetus stage(P <0.05). In the uterus, the expression of DDIT3 was significantly higher than that in follicular stage and fetus stage(P <0.05). In oviduct, its expression was not significantly different at different physiological stages. The expression of DDIT3 gene in M Ⅱ stage oocytes was significantly higher than that in GV stage and M Ⅰ stage(P <0.05). Its expression in M Ⅱ granulosa cells was also significantly higher than that in GV stage and M Ⅰ stage(P <0.05). There was no significant difference in DDIT3 expression between oocytes and granulosa cells in GV stage and M Ⅰ stage. In conclusion, yak DDIT3 gene possible plays an important role in regulating ovary function and pregnancy maintenance, follicle development and maturation.

Key words: Bos grunniens, DDIT3 gene, RT-qPCR, Tissue expression, Ovary, Oocyte

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Cite this article

WU Jianfei, LIU Yu, LI Heng, JING Tian, LU Jianyuan, ZI Xiangdong. Cloning and Tissue Expression Characteristics of Yak DDIT3 Gene[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(5): 216-225. doi: 10.7668/hbnxb.20192262.

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