Figure 4

Fine mapping of Xa46(t). aPolymorphisms between H120 (H) and C039 (C) were revealed by SSR markers RM26820, RM26965, RM26977, RM26979, RM26981, RM26982, RM26984, RM26985 and RM26999. Molecular genotypes of some susceptible F2 plants revealed by RM26982 are also shown. bPhysical map of the Xa46(t) locus. Xa46(t) was mapped between the markers RM26981 and RM26984 on chromosome 11 (11S). The nine markers identified in this study, including the co-segregating maker RM26982. Xa46(t) was located in a region corresponding to a 65.34Â kb interval in the PAC clone P0480H08 of Nipponbare. Xa23 was also mapped on this region marked with blue (Wang et al. 21. All the linked markers were anchored at the BAC/PAC clones.