Fig. 1

Phylogenetic tree of Oryza inferred from Ge et al. (1999), Lu et al. 2009 and Ammiraju et al. (2010). Genome types are indicated next to each phylogenetic branch. Seventeen representative Oryza species that are currently subjected to genomic investigation as part of the OMAP are indicated next to respective phylogenetic branches. Dashed lines indicate putative diploid parents involved in the formation of polyploids. Filled in circles indicate maternal parent, and unfilled circles indicate unidentified diploid genome.