Fig. 5: Consensus tree summarizing origins and evolutionary history of diploid and tetraploid Oryza species.

Single-line branches denote diploid species, whereas double-line branches denote tetraploid species. Single dashed lines represent unknown diploid wild relative species. Forward slash (/) indicates that the species names—O. meyeriana and O. granulata—are considered synonyms (https://powo.science.kew.org). One asterisk (*) denotes that the maternal donor is a BB genome species. Two asterisks (**) denote that the maternal donor is a CC genome species. Genome types and known representative species are shown next to the terminal nodes. The relative times of hybridization events are based on the current study. The tree includes the new designation of O. schlechteri as KKLL genome type (the same as O. coarctata) proposed in this work. L. perrieri and L. japonica (here collectively referred to as Leersia) are the outgroups.