Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (3): 972-977.doi: 10.11843/j.issn.0366-6964.2022.03.030

• RESEARCH NOTES • Previous Articles     Next Articles

The Development of Nested PCR Assay for New Subtype of Bovine Hepacivirus in Ticks

GUO Luanying, WANG Nina, LI Hangyuan, JI Yufei, MA Jun, PEI Mingchao, SHAO Jianwei, LIU Quan*   

  1. College of Life Sciences and Engineering, Foshan University, Foshan 528000, China
  • Received:2021-05-18 Online:2022-03-23 Published:2022-03-31

Abstract: A detection method is urgently needed, which not only can improve the detection and diagnostic ability for the newly discovered bovine hepacivirus strain GDZJ, BovHepV-GDZJ, but also contribute to the preliminary understanding of tick carrying BovHepV in Guangdong province. In this study, the specific primers of Nested PCR for BovHepV-GDZJ strain were designed using the gene regions with high abundance in high-throughput sequencing data as templates through macrotranscriptomics, high-throughput sequencing, and PCR. The results showed that the minimum detection value of the method for the standard plasmid containing the gene fragment of BovHepV-GDZJ strain was 6.8 copies·μL-1, and it had no response to common pathogens carried by ticks such as arenavirus. Moreover, the positive rate was 46.08% (53/115) in the 115 tick samples collected in Zhanjiang, Guangdong. In this study, BovHepV was first detected from ticks, which revealing the possible transmission route of BovHepV. What's more, a nested PCR method for the detection of BovHepV-GDZJ strain was established to provide technical help for the detection and prevention of BovHepV in Guangdong. It also provides some reference value for the control of the HNV epidemic.

Key words: bovine hepacivirus, nested PCR, tick, high-throughput sequencin

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