Plant Resistance to Viruses: Natural Resistance Associated With Recessive Genes

Abstract Recessive resistance against plant viruses has long been utilized in resistant crop breeding, partially due to its higher dominance compared with resistance against pathogens from the other kingdoms. This is mainly attributed to the distinctive feature for viruses to rely on a number of host factors. To date, several distinct classes of recessive resistance genes have been characterized from natural plant germplasm, suggesting functional diversity of these genes and regulatory mechanisms for recessive resistance. Moreover, the emergence of next-generation sequencing and gene editing technologies will promote the application of recessive resistance in a wide range of crop species.