Original line is Yanxian No.1 (Indica). Map position (153.2-154.1 cM). Pi-y(t) in Huang 2005 and Pi-y1(t) in Lei et al. 2005. The results indicated that the two gene Pi-y1(t) and Pi-y2(t) could be one same gene in that their positions is too close, designated tentatively as Pi-y(t) (Lei et al. 2005).