Figure 3
Forecrown colour, represented by dot colour (scale:
red-reddish-orange-amber-yellow) in relation to hybrid index on a scale
from 0 (P. p. pusillus genotype) to 1 (P. c. extonigenotype), and A) genotype of an indel linked to CYP2J19 on
scaffold 50201 on chromosome 8, and B) interspecific heterozygosity.
While non hybrids homozygous for their respective allele are
characterised by species-specific forecrown colour, individuals
heterozygous at the CYP2J19 -linked SNP have orange to red
forecrowns, even in extoni genotypes with little admixture
evident. Backcrosses are mostly into extoni .