WNK2 and infection: Zooming into the significant QTL region identified high-confidence gene TraesCS2D02G470400, TraesCS2D02G505400, and TraesCS2D02G470500 on 2D; TraesCS3A02G475600 on 3A; TraesCS6B02G015000 and TraesCS6B02G119900 on 6B; and TraesCS7A02G286700 on 7A, which regulate mitogen-activated protein kinase (MAPK) cascades, which are involved in signaling a variety of plant defense responses against pathogen infections (Supplementary Table 5).