Ball Python morph
Ball Python (Python regius)
Same allele as Candy at TYR locus, different discovery line. Visually identical to Candy.
Tyrosinase-negative albinism locus. Multiple alleles confirmed at the TYR gene. The Albino allele eliminates melanin production, producing bright yellow/orange animals with white pattern and pink/red eyes. The Candy/Toffee allele (same mutation, different discovery lines) produces a similar but subtly different amelanistic phenotype with more lavender/purple tones. Compound heterozygous Albino/Candy produces the Ultramel phenotype: a visually reduced-melanin animal distinct from either homozygous form.
How to identify it: Albino: bright yellow/white with pink-red eyes, no dark pigment. Candy/Toffee: similar but tends toward lavender/purple undertones. Ultramel: intermediate melanin reduction, darker than visual Albino but lighter than normal with distinctive eye color.
Toffee follows a recessive inheritance pattern, carried on the T- Albino (Amelanistic) allele (locus TAlbino).
Because Toffee is recessive, an animal needs two copies of the allele to show the trait visually. An animal with a single copy is called het toffee (heterozygous). A het animal looks normal but carries the gene, so pairing two het toffee animals produces, on average, one in four visual toffee offspring.
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