Home / Morph Guide / Empty Back Crested Gecko
Empty Back Crested Gecko
An Empty Back crested gecko has a clean, unpatterned back with its pattern on the sides; Foundation Genetics models Empty Back as an incomplete-dominant gene.
Empty Back describes a gecko whose back is clear of pattern while the sides keep theirs, often with stronger contrast on the flanks. Foundation Genetics models it as an incomplete-dominant gene: one copy clears the back and two copies (Super Empty Back) clear it further, and the super form is described as healthy. That model is the main published source, and few breeders publish their own Empty Back breeding results, so Geck Inspect badges it Emerging: reported, not yet independently proven. A clean back also comes from Highway, Phantom and line-bred patternless animals, so a photo alone does not prove Empty Back.
Foundation Genetics lists Harlequin as working against the clear back. In that model Empty Back x Empty Back gives about 25% Super Empty Back, 50% Empty Back and 25% normal.
Inheritance: Incomplete dominant. Category: Pattern. Rarity: rare.
Key features
- Clean, unpatterned back
- Pattern concentrated on the sides
- One copy is visible in the Foundation Genetics model, so there is no hidden het
How to tell it apart
- Highway: Highway gives a continuous clean stripe and is provisionally a version of the Cappuccino gene; lineage separates the two.
- Phantom: Phantom is recessive and mutes pattern color all over; Empty Back clears the back and leaves the sides patterned.
- Patternless: Line-bred patternless animals can have a clean back with no Empty Back gene.
Frequently asked questions
What is an Empty Back crested gecko?
An Empty Back crested gecko has a clean, unpatterned back with its pattern on the sides; Foundation Genetics models Empty Back as an incomplete-dominant gene.
What does an Empty Back crested gecko look like?
A typical Empty Back crested gecko shows these features: clean, unpatterned back; pattern concentrated on the sides; one copy is visible in the Foundation Genetics model, so there is no hidden het.
How do I identify an Empty Back crested gecko?
To identify an Empty Back crested gecko, check these points: compare the back with the sides: Empty Back clears the back, not the whole animal; confirm with lineage, since Highway, Phantom and line-bred animals can look the same.
What is the difference between Empty Back and Highway?
Highway gives a continuous clean stripe and is provisionally a version of the Cappuccino gene; lineage separates the two.
How is Empty Back inherited?
Empty Back is classified as incomplete dominant. Single copy produces a visible form; two copies produce a distinct "super" form. The most common inheritance model in proven crested gecko morphs. This is the Foundation Genetics model, the main published source; independent breeding records are still thin.
What other morphs combine with Empty Back?
Empty Back is often combined with Lilly White, Dalmatian and Axanthic.
Canonical URL: https://geckinspect.com/MorphGuide/empty-back
Geck Inspect is the professional platform for crested gecko
(Correlophus ciliatus) breeders and keepers, collection
management, breeding planning, AI-powered morph identification,
multi-generation lineage tracking, and a verified community.
Enable JavaScript to use the full interactive app, or
create a free account.