Angelfish Genetics Calculator
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Sire (Male)
Dam (Female)
Genetic Reference Guide
Summary
Angelfish genetics are based on specific Loci (locations) on their chromosomes. For every trait, a fish carries two alleles (one from each parent). The combination of these alleles determines the Phenotype (how the fish looks) and the Genotype (its genetic blueprint). Currently, there are 10 confirmed loci that define the stunning variety of angelfish seen today.
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GeneThe specific segment of DNA on a chromosome that determines characteristics of an organism for a particular trait. Angelfish carry two copies of a gene (two alleles), one inherited from the dam and another from the sire.
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AlleleThe specific variation of a gene. There can be more than two possible alleles in the population but an animal can carry at most two different alleles.
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PhenotypeThe observable characteristics of a trait (e.g. Silver, Gold Marble).
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GenotypeThe written expression of genetic makeup of a trait; it is a list of alleles that the animal carries.
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LocusThe location of a particular gene on the chromosome.
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Dominant AlleleAn allele that masks the expression of another allele at the same locus.Recessive AlleleAn allele that is not expressed in the presence of a dominant allele; it is only detectable in a homozygous genotype (two copies of the same allele).
Colour Locus
This locus governs basic colour expression. Known alleles: + (Wild), D (Dark - incomplete dominant), Gm (Gold Marble - incomplete dominant), M (Marble - incomplete dominant), g (Gold - recessive).
| Phenotype | Genotype combinations |
|---|---|
| Silver | +/+ |
| Double Black | D/D |
| Black Hybrid | D/M, D/Gm, D/g |
| Black Lace | D/+ |
| Marble | M/M, M/Gm, M/g |
| Silver Marble | M/+ |
| Dark Gold Marble | Gm/Gm |
| White Gold Marble | Gm/g |
| Silver Gold Marble | Gm/+ |
| Gold | g/g |
Stripless/Zebra Locus
Responsible for body bars or blushing phenotypes.
| Ghost | S/+ |
| Blushing | S/S |
| Zebra | Z/+, Z/Z |
| Clown | S/Z |
Smokey Locus
Responsible for smokey and chocolate patterns.
| Chocolate | Sm/Sm |
| Smokey | Sm/+ |
Streaked Locus
White streaks in fins and iridescent body patches.
| Streaked | St/St, St/+ |
Half-Black Locus
Recessive; The gene is sensitive to light conditions during growth.
| Half-Black | h/h |
Fin Length Locus
Determines the length of dorsal, anal and caudal fins.
| Standard | +/+ |
| Veiled | V/+ |
| Super Veiled | V/V |
Philippine Blue Locus
Increases blue iridescence; creates Paraiba and Pinoy.
| Blue | pb/pb |
| Paraiba | pb/pb + S/S (No D) |
| Pinoy | pb/pb + at least one D |
| Pinoy Paraiba | pb/pb + S/S + at least one D |