Plant Virus Resistance—2nd Edition

Dear Colleagues,

Viruses are responsible for a significant number of threats to plant health in agriculture, including many emerging crop diseases. The measures available to control viruses in crops are limited and often ineffective, making viruses a major cause of economic losses. Control methods for virus-induced diseases primarily rely on preventing vector transmission, applying hygienic practices during the propagation of plant material and cultivation, and using resistant varieties. Among these, the use of resistant varieties is undoubtedly the most advantageous, as it offers effective protection throughout the growing season without requiring additional input from the grower, and it is both environmentally friendly and safe for consumers. However, sources of genetic resistance are limited and can sometimes lose effectiveness due to the expansion of virus populations capable of overcoming them. Research in plant virus resistance includes but is not limited to the following: (i) identifying new sources of resistance and the underlying molecular mechanisms, (ii) identifying and characterizing resistance-breaking mechanisms, (iii) discovering new molecular targets for breeding resistant crop varieties using advanced tools such as genome editing, and (iv) analyzing the ecological and evolutionary factors that influence resistance durability.

Prof. Dr. Miguel A. Aranda
Guest Editor

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