Crested Gecko morph
Crested Gecko (Correlophus ciliatus)
Lack of yellow/red pigment
Removes yellow and red coloration, creating grey/black phenotypes. Recessive inheritance. Homozygous animals lack xanthophore pigments. Synergistic with Pinstripe to create strong paper-white pattern expression.
How to identify it: Axanthic animals lack yellow/red colors, appearing grey, black, or desaturated. Combined with Pinstripe creates strongest paper-white.
Axanthic follows a recessive inheritance pattern, carried on the Axanthic allele (locus x).
Because Axanthic is recessive, an animal needs two copies of the allele to show the trait visually. An animal with a single copy is called het axanthic (heterozygous). A het animal looks normal but carries the gene, so pairing two het axanthic animals produces, on average, one in four visual axanthic offspring.
Charcoal
Homozygous Axanthic (x/x) combined with Empty Back het (EB/+). Axanthic eliminates warm pigment while Empty Back reduces dorsal pattern, producing a clean charcoal-grey gecko with minimal patterning.
OG Noir
Double recessive: homozygous Axanthic (x/x) and homozygous Phantom (PH/PH). Axanthic removes warm red and yellow pigment while Phantom provides a silver-grey base, producing a striking achromatic gecko.
Axanthic Phantom
Axanthic removes yellow/red while Phantom adds melanin blending, creating monochrome grey-black animals.
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