From plant immunity to crop disease resistance

J Genet Genomics. 2022 Aug;49(8):693-703. doi: 10.1016/j.jgg.2022.06.003. Epub 2022 Jun 18.

Abstract

Plant diseases caused by diverse pathogens lead to a serious reduction in crop yield and threaten food security worldwide. Genetic improvement of plant immunity is considered as the most effective and sustainable approach to control crop diseases. In the last decade, our understanding of plant immunity at both molecular and genomic levels has improved greatly. Combined with advances in biotechnologies, particularly clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9-based genome editing, we can now rapidly identify new resistance genes and engineer disease-resistance crop plants like never before. In this review, we summarize the current knowledge of plant immunity and outline existing and new strategies for disease resistance improvement in crop plants. We also discuss existing challenges in this field and suggest directions for future studies.

Keywords: Crops; Disease resistance; Genetic engineering; Molecular breeding; Plant immunity; Resistance genes.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • CRISPR-Cas Systems*
  • Crops, Agricultural
  • Disease Resistance*
  • Gene Editing
  • Genome, Plant