Fig 3. Cross-species painting patterns on sex chromosomes of 12 Oryzomyini species after in situ hybridization using HBR B1 or B2 or HBR Y (except in Holochilus brasiliensis for which the pattern of hybridization presented is exclusively obtained when HBR Bs are used as probes, see Fig 2c), as presented on Table 1: (a-l) On the left, X and Y painted regions indicating the OSHR in pink. On the right, the morphology of the sex chromosomes is shown by CBG-banding pattern or DAPI.

Species names are indicated below the chromosomes. Species Oecomys sp., Euryoryzomys russatus and Hylaeamys megacephalus are outgroup sensu Percequilo et al. [7] and Avaria-Llautureo et al. [39], and their chromosomes did not present any painted region after HBR Y and HBR Bs paint probes hybridizations. See details of painted segments in Table 1.