Reptile Morph & Gene Library

Reptile Morph & Gene Library — Inheritance, Zygosities and Descriptions

Morph Library

Every gene on Breeders Direct — what it is, how it is inherited, and which species carry it

Sunburst

Co-Dominant

Combination of hypomelanism and albino, leading to vibrant yellow or orange colors.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Comes in Super Visual
Species Ball Python Corn Snake Eastern Hognose Western Hognose

Sunkissed

Recessive

Pattern reducer and head pattern change

Recessive: Requires two copies to express

Comes in 100% Het 50% Het 66% Het Visual
Species Corn Snake

Telescope-Eye

Polygenic

Protruding eyes

Polygenic: Determined by multiple genes

Species Goldfish

Tessera

Dominant

Pattern mutation producing clean lateral stripe

Dominant: Single gene sufficient to express

Comes in High Expression Low Expression
Species Corn Snake

Tiger

Line bred colour trait

Vertical darker bands, often running over and down the sides (“tiger stripes”); variation in strength.

Line bred colour trait: A line-bred color trait refers to a specific color characteristic in animals that is maintained or intensified through line breeding.

Comes in High Expression Low Expression Visual
Species Crested Gecko Reticulated Python

Toffee

Recessive

A recessive trait that lightens the belly color, often to a creamy or yellowish hue.

Recessive: Requires two copies to express

Comes in 100% Het 50% Het 66% Het Visual
Species Ball Python Eastern Hognose Western Hognose

Translucent

Recessive

Lighter-colored animals with nearly see-through skin; often have black or red eyes.

Recessive: Requires two copies to express

Comes in 100% Het 50% Het 66% Het Visual
Species Bearded Dragon Leopard Gecko

Trick

Co-Dominant

Pattern distortion, creates busy patterns.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Comes in Super Visual
Species Ball Python

Tricolor

Line bred colour trait

Three distinct colors appearing; commonly combinations like red/orange, white, and another darker tone.

Line bred colour trait: A line-bred color trait refers to a specific color characteristic in animals that is maintained or intensified through line breeding.

Comes in High Expression Low Expression Visual
Species Crested Gecko

Tuxedo

Polygenic

Dark rear body with contrasting front

Polygenic: Determined by multiple genes

Species Guppy Lovebird

Ultramel

Recessive

Recessive morph producing caramel/amber tones

Recessive: Requires two copies to express

Comes in 100% Het 50% Het 66% Het Visual
Species Ball Python Corn Snake

Vanilla

Co-Dominant

Subtle lightening gene related to Fire

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Comes in Super Visual
Species Ball Python

Veiltail

Polygenic

Long flowing fins

Polygenic: Determined by multiple genes

Species Angelfish

White Platinum

Dominant

Pure white body with metallic shine.

Dominant: Single gene sufficient to express

Comes in High Expression Low Expression
Species Lovebird

Witblitz

Recessive

A gene founded in South Africa characterized by a lack of pattern and muted color, resulting in a washed-out appearance, often described as earthy brown or a light pastel yellow.

Recessive: Requires two copies to express

Comes in 100% Het 50% Het 66% Het Visual
Species Bearded Dragon

Woma

Dominant

Pattern mutation with wobble risk

Associated with wobble in some lines. No homozygous Woma has been produced; Woma × Woma is believed to be lethal in the egg.

Dominant: Single gene sufficient to express

Comes in High Expression Low Expression
Species Ball Python

Yellow

Line bred colour trait

Yellow is a color trait—a visible characteristic (phenotype) based on pigmentation, such as feather color, scale color, or fur.

Line bred colour trait: A line-bred color trait refers to a specific color characteristic in animals that is maintained or intensified through line breeding.

Comes in High Expression Low Expression Visual
Species Bearded Dragon Domestic Canary Lovebird

Yellow Belly

Co-Dominant

Enhances flames/checkering; in super produces Ivory

Yellow Belly complex allele interactions (Freeway/Highway combos)

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Comes in Super Visual
Species Ball Python

Zebra

Dominant

Extra vertical bar(s) pattern

Dominant: Single gene sufficient to express

Comes in High Expression Low Expression
Species Angelfish Carpet python

Zero

Recessive

Removes pattern and color (white/gray phenotype)

Recessive: Requires two copies to express

Comes in 100% Het 50% Het 66% Het Visual
Species Bearded Dragon