Table S2. Detailed information on the offspring from the analysed crosses. from Interaction between sex-determining genes from two species: clues from <i>Xenopus</i> hybrids

Detailed information on the offspring from the analysed crosses (X44, X54, X67, X68, X82, and X197). Cross X67 was designated to produce allopentaploid hybrids. DoD indicates the number of days of development of the tadpole when analysed. The phenotype was preliminary declared according to the morphological appearance of the gonads under a stereoscope. <i>X. tropicalis</i> and <i>X. laevis</i> sex chromosomes (Sex Chr.) were genotyped as stated in the material and methods section. Sample IDs labelled in grey indicate the analysed animals that were found dead although in relatively good condition. Colour labelled individuals were not included in the total count due to: the absence of gonads in the sample (X44.17, yellow); not genotyped due to degraded DNA (X67.8, blue), and discordant results explained by a <i>dm-w</i> false negative or a recombinant W chromosome with a Z-linked marker (X54.4, orange). The Z chromosome from <i>X. tropicalis</i> in red indicates the possibility that this chromosome is, in fact, a recombinant W chromosome with a Z-allele for the marker used (after recombination between the sex-determining allele (W) and the Z-linked marker in that family). GC=Germ cells; PM=Post-metamorphic; na=not analysed; undif.=undifferentiated.