Biotechnology Bulletin ›› 2018, Vol. 34 ›› Issue (8): 8-16.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0462

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Research Advances in Gene Editing and Plant-virus Interaction and Their Application in Breeding Virus-resistant Crops

YANG Yi-zhou1, LI Wei1, YI Tu-yong1, LI Feng2   

  1. 1. College of Plant Protection,Hunan Agricultural University,Changsha 410128;
    2. College of Horticultural Sciences and Forestry,Key Lab of Horticultural Plant Biology(MOE),Huazhong Agricultural University,Wuhan 430070
  • Received:2018-05-18 Online:2018-08-26 Published:2018-09-04

Abstract: Viral diseases impose serious threat to crop production and the best management strategy is to breed virus-resistant crop varieties for production. Research on plant-virus interaction has revealed mechanistic insights on the interactions between viral and plant genes which are essential for viruses to complete their life cycle. Once a virus enters its host plant cells, its particle disassembly, gene expression, genome replication, and ribonucleoprotein complex movement through plasmodesmata and phloem tissue are all dependent on interactions between viral products and specific plant genes. The recessive mutation of those plant genes can confer viral resistance to plants. Such mutation exists in plant natural population and can be directly employed in breeding viral resistant crops. CRISPR/Cas-mediated gene editing enables targeted gene mutagenesis in both plants and animals in vivo and there has been an explosion in the development of this technology in the past five years. It allows precise mutation and editing of the plant genes required for virus infection, thus to effectively create virus-resistant crop. In this review, we aim to summarize recent advancements in gene editing research and current knowledge on plant-virus interaction and provide guidelines for creating viral resistant crops using gene editing technology.

Key words: gene editing, plant-virus interaction, virus, virus-resistant breeding