Hyaloperonospora arabidopsidis is a pathogen of the model plant Arabidopsis thaliana and food crops belonging to the family Cruciferae and cause downy mildew disease. They belong to the class Oomycetes, belong to the kingdom Stramenopila, which includes brown algae and diatoms. Although they share morphological and ecological similarities with fungi, they evolved independently to colonize plants. They belong to a group of “downy mildew” pathogens, comprising more than 800 species that cause disease on hundreds of plant species.

Browse this species genome in the Ensembl Genomes website.