Danny_57, 30/03/2012 10.44:
Ciao Andrea, I am not sure to understand good your last phrase.
Single-comb should be written as p+p+ r+r+ d+d+ Bd+Bd+
Combless (Breda) should be written as p+p+ r+r+ d+d+ bdbd (suppressing single comb). But PP r+r+ d+d+ bdbd is still combless (suppressing pea-comb)
The recessive combless (Breda) gene (bd), when homozygous, suppresses all other comb types, regardless of p, r, d loci.
Andrea speak of single comb and rose ---- and no no-crest breda ---
![[SM=g7349]](https://im0.freeforumzone.it/up/0/49/2645640.gif)