Identification of the pollen self-incompatibility determinant in Papaver rhoeas. - Wheeler, Michael J.; de Graaf, Barend H. J.; Hadjiosif, Natalie; Perry, Ruth M.; Poulter, Natalie S.; Osman, Kim; Vatovec, Sabina; Harper, Andrea; Franklin, F. Christopher H.; Franklin-Tong, Vernonica E. (Nature, 2009)