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Phylogeny of Oryza and Sorghum. Simplified phylogeny showing the estimated divergence times of Sorghum and Oryza species. Oryza lineages are summarized by genome type, designated AA through JJ according to morphological, physiological, biochemical, and molecular differences, including chromosome pairing behavior of F1 hybrids from interspecific crosses [45]. This diagram is based on the data of Gaut et al. (2002) [13] and Ge et al. (1999) [11].
