This is an updated version of the map reported by Kurata et al. (1994) and Harushima et al. (1998). It uses an F2 population of 186 plants from a cross between the cultivars Nipponbare (japonica) and Kasalath (indica). A total of 3267 markers were located covering 1530.4 cM. Marker names ending with the letter 'S' indicate that the 3' UTR of a cDNA fragment was used as a probe rather than the whole insert. The centromere position of chromosome 10 has been updated to reflect the new estimate given by Cheng et al. (2001).