Virulence Profiling of Bremia lactucae Causing Lettuce Downy Mildew: A Study Across Key Agricultural Areas in Brazil
Lettuce Downy Mildew (LDM), caused by Bremia lactucae, is a major disease during the winter, particularly under prolonged wetness periods. Pathogen populations are dynamic and evolve through the emergence of new virulence phenotypes (v-phenotypes). Breeding programs focus on identifying resistance genes that confer bro...