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  • Gold Marble Gene

    Gold Marble Gene

    Notation: Gm
    Gene Category: Dominant

    Single Dose Phenotype: Gold forehead and dorsal areas with the mottled black and white on the rest of the body.

    Double Dose Phenotype: The black marbling increases and often becomes more black than white in patterning.

    Gold Marble Ghost


    Silver Gold Marble
    ...
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  • Gold Gene

    Gold Gene

    Notation: g
    Gene Category: Recessive

    Single Dose Phenotype: Hidden due to being a recessive gene. Occasionally there may be slight hints of gold coloring in the dorsal. In combination with the Dark gene, it is known to intensify the black pigmentation.

    Double Dose Phenotype: Solid gold angelfish with a lighter belly area. Blocks the development of dark pigments.

    Being a recessive gene, it is rarely known to exist until breeding starts. And, even then if both parents do not possess this gene it continues to go unnoticed.


    Gold Angelfish
    Source: http://www.theangelfishsociety.org/phenotype_library_20...
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  • Zebra Gene

    Zebra Gene

    Notation: Z Gene Category: Dominant Single Dose Phenotype: Angels with this gene will have at least 3 body stripes, not including the eye stripe or the stripe across the base of the caudal fin. Double Dose Phenotype: While there is no physical characteristic to clue you into an angel being double dose Zebra, all those with double dose grow very slow and are often culled or mistaken for runts. The only way to know positively if a given fish is double dose is to breed it with a wild or silver type angel. If all offspring are Zebras, then this parent would be confirmed to ...
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  • Stripeless Gene

    Stripeless Gene

    Notation: S Gene Category: Incomplete Dominant Single Dose Phenotype: Offspring have broken or no stripes, are known as a Ghost, remain vigorous. Double Dose Phenotype: Offspring have thin gill plate that is translucent instead of reflective which allows the gill coloration to show through. This trait is known as a Blush. Those with a double dose of this gene tend to be weak and have a high mortality rate when compared to the other phenotypes. Males with the Stripeless gene are known to develop a more pronounced kok than is typically see...
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  • Angelfish Genetics

    Angelfish Genetics

    Angelfish have been kept in captivity and bred since the early 1920s. Initially only the wild angels were kept and none of the color variations existed. That is until 30 years later. In the 1950s angelfish genes began to mutate. Why is anyone's guess; but odds are due to inbreeding as well as natural mutation. Genetics can be a mind blowing subject to study. But once you understand the basics behind the concept it actually isn't so mystical.

    In order to have a discussion on genetics, a few terms should be defined. If you are not familiar with terms such as phenotype and genotype, then please review the genetic terminology. Now for the good stuff. Divi...
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    Last edited by catsma_97504; 07-29-2015, 04:55 PM.
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