Fig. 2. All variable nucleotide sites among ITS sequences of taxa of Paeonia section Paeonia. Paeonia brownii and P. lutea representing section Oneapia and section Moutan. respectively, are employed as outgroups for comparison. Dots (.) indicate sequences matches to the first taxon and bars (-) indicate gaps. The site numbers (1 - 24) corresponding to the actual sites: ITS 1 -- 34, 49, 74, 97, 108, 131, 138, 139, 169, 202, 226, 227, 231; ITS 2 — 31, 36, 38, 82, 99, 179, 189, 190, and 207, respectively, d = diploid; t = tetraploid; b = both diploid and tetraploid populations known; ? = ploidy level unknown. Symbols at the right side of the figure represent genotypes of parental species and their combinations in the species of hybrid origin. Abbreviations of species are the same as in Table 1.