Figure 3
Phylogenomic tree of cultivated rice in Asia and Africa with their putative ancestor species.
(a,b) Phylogenetic trees were built based on the complete cp genome (a) and 45S cistron sequences (b). O. sativa ssp. japonica and indica groups are denoted as J and I, respectively. Two cultivars, M23 (no. 3, red thick line) and Tongil (no. 4, blue thick line), derived from japonica x indica hybridization and vice versa are denoted as JxI and IxJ, respectively. Different species/subspecies are indicated with different colored labels. Lines connect the positions of each accession/cultivar in the two trees. Numbers in colored circles represent accessions labeled in Table 1. The phylogenetic tree was generated using Poisson correction and the neighbor-joining (NJ) method in MEGA6. Bootstrap values calculated for 1000 replicates are shown on the branches; the values less than 50% are not shown. (c,d) Pedigree of two cultivars, M23 (c) and Tongil (d), bred by crossing between O. sativa ssp japonica and indica38. Red and blue thick lines indicate final maternal genotype backgrounds for M23 and Tongil, respectively.
