(Figure 1). Group (G) I was Japonica rice. Using Nipponbare
as a representative for the temperate Japonica and
Azucena (IRRI breeding line) as a representative for the
tropical Japonica, five Thai and one IRRI accessions were
grouped with Japonica rice lines by clustering closer to
Azucena. All the Thai accessions in this group are upland
rice. Group (G) II were clusters of Indica, which
includes four sub-groups: GII-1, GII-2, GII-3, and GII-4,