Journal Article Research Support, Non-U.S. Gov't Blumeria graminis Capsicum annuum NLR Proteins Phytophthora infestans Plant Proteins Proteins Pvr4 RXLR effectors Receptors, Pattern Recognition Research Support, U.S. Gov't, Non-P.H.S. Triticum aestivum Tsw cell death coiled-coil domain effector evolution genome-wide association study host resistance hot pepper multiple interactions nonhost resistance pepper plant NLR plant disease plant virus resistance powdery mildew singleton NLR wheat