Fig. S2 Maximum parsimony trees resulting from the inclusion of either type-1 or type-2 ITS paralogs in the combined DMC1/EF-G/ITS data matrix from diploid Hordeum species.

Fig. S3 Parsimony and neighbor-joining trees derived from the analyses of the combined data matrices of DMC1, EF-G, and ITS, including sequences from the tetraploid species Hordeum capense and H. secalinum together with diploid Hordeum species.

Fig. S4 and Table S1 Dispersal–vicariance analysis reconstruction of ancient distribution areas of Hordeum species and their progenitor taxa based on the phylogeny of extant diploid Hordeum species and outgroups from Triticeae and Bromeae.

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