A novel source of resistance to Pepper yellow leaf curl Thailand virus (PepYLCThV) (Begomovirus) in chile pepper
Among the most devastating chile pepper–infecting viruses in tropical regions are members of the whitefly transmitted Begomovirus
Abstract
Chile pepper (Capsicum annuum L.) is an increasingly important vegetable and spice crop. Among the most devastating chile pepper–infecting viruses, especially in tropical and subtropical regions, are members of the whitefly transmitted Begomovirus, which cause pepper yellow leaf curl (PYLC). An effective PYLC management strategy is the development of resistant cultivars. However, genetic recombination, acquisition of extra DNA components, and synergistic interactions among different begomoviruses have resulted in the rapid emergence of new viruses that can infect new hosts, cause new disease symptoms, and overcome host resistance. In this project, 98 Capsicum entries comprising breeding lines, open pollinated varieties, genebank accessions, and wild species were screened for resistance to strains of Pepper yellow leaf curl Thailand virus (PepYLCThV). The researchers used a randomized complete block design with three replications and 10 plants per replication in field net-houses at two locations (Khon Kaen and Kamphaeng Saen, Thailand) using augmented inoculation by viruliferous whiteflies.
This research was supported by the World Vegetable Center
Citation
Barchenger, D.W.; Yule, S.; Jeeatid, N.; Lin, S.-W.; Wang, Y.-W.; Lin, T.-H.; Chan, Y.-L.; Kenyon, L. 2019. A novel source of resistance to Pepper yellow leaf curl Thailand virus (PepYLCThV) (Begomovirus) in chile pepper. HORTSCIENCE. 54(12):2146-2149.