Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (3): 497-505.DOI: 10.3969/j.issn.1004-1524.2021.03.15

• Plant Protection • Previous Articles     Next Articles

Screening of host factors interacting with wheat yellow mosaic virus P2 by yeast two-hybrid system

HAN Xiaolei1,2,3, GAO Shiqi1,2,3, ZHANG Fan3, YANG Jian3, LIU Peng3, JIANG Hongming1, LI Linzhi1,*()   

  1. 1. Yantai Academy of Agricultural Sciences, Yantai 265500, China
    2. College of Life Sciences, Yantai University, Yantai 265500, China
    3. Ningbo University/State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo 315000, China
  • Received:2020-10-27 Online:2021-04-02 Published:2021-03-25
  • Contact: LI Linzhi

Abstract:

Wheat yellow mosaic virus (WYMV) is classified in the genus Bymovirus, family Potyviridae. The genome is composed of two sense RNA single-stranded RNA1 and RNA2 and encodes 10 proteins, among which P2 plays an important role in virus replication. In order to identify the targets of P2 in host, co-transformation of cDNA library vector and pGBKT7-P2 was constructed, eighteen candidate host targets of P2 were screened out, which were divided into several types based on their functions, including salicylic acid signal pathway factor, E3 ubiquitin ligase, defense response, oxidoreductase activity and photosystem II assembly. Additionally, the interaction of P2 and TaTIFY or Ta14-3-3 was further verified by Y2H system. Based on the results, it could be speculated that P2 may interact with E3 ubiquitin transcription factor, salicylic acid signal transcription factor, or the factors associated with plant photosystem and chloroplasts formation. In conclusion, P2 may participate in multiple signaling pathways during viral infection, and provide an insight into molecular interaction mechanism between WYMV and the host.

Key words: wheat yellow mosaic virus, wheat, P2, cDNA library, yeast two-hybrid

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