Leopard Gecko morph

Dominant

White & Yellow

Leopard Gecko (Eublepharis macularius)

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What White & Yellow looks like

White & Yellow (W&Y) morph. One copy of the dominant W&Y gene. Increased white coloration on sides and flanks. Reduced spotting with smaller, fewer spots than normal. Clean, bright appearance with vivid yellow/orange areas. Often shows a distinctive white lateral stripe or banding. First appeared in 1996 in Belarus. Combines well with many other morphs.

White & Yellow (W&Y) is a dominant trait that increases white coloration on the sides and dorsal area while reducing spotting and enhancing yellow/orange tones. One copy of the W&Y gene produces visible expression (approximately 50% of offspring when bred to non-W&Y). Homozygous W&Y ("Super W&Y") shows enhanced expression with more extensive white coloration. W&Y geckos typically have high white sides, reduced or smaller spots, and a cleaner overall appearance. The trait combines well with many other morphs and has become a popular building block in the hobby. Some historical concerns about "W&Y Syndrome" (neurological issues) existed in early lines, but modern breeders report this has been largely bred out through careful selection.

How to identify it: W&Y (heterozygous): High white coloration on sides and flanks. Reduced spotting. Spots tend to be smaller and fewer than normal. Clean, bright appearance. Yellow/orange areas may appear more vivid. Body often shows a distinctive white lateral stripe or banding. Super W&Y (homozygous): Enhanced white, sometimes nearly all-white dorsal surface with minimal spots. More extreme expression of the het phenotype. Distinguished from normals by the characteristic high white sides and reduced pattern.

How White & Yellow is inherited

White & Yellow follows a dominant inheritance pattern, carried on the White & Yellow (W&Y) allele (locus WY).

Combo morphs with White & Yellow

  • W&Y Eclipse

    Combination of White & Yellow (dominant, one copy) with Eclipse (recessive, homozygous). The W&Y trait provides increased white coloration and reduced spotting, while Eclipse contributes solid dark eyes. The result is a clean, high-contrast gecko with bold white sides, reduced pattern, and striking solid black eyes.

Predict White & Yellow pairingsOpen the Leopard Gecko genetics calculator.Identify a Leopard Gecko morphUse the morph identifier to match photos to visually identifiable traits.

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