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TAS Angelfish Naming Conventions Part 2


albino 2. gold, gold marble, marble 3. streaked 4. zebra, smokey, chocolate, leopard 5. half-black 6. dark descriptions 7. Gm/+ 8. ghost, ... – PowerPoint PPT presentation

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Title: TAS Angelfish Naming Conventions Part 2

TAS Angelfish Naming Conventions Part 2
Phenotype Names
  • A Presentation for The Angelfish Society
  • by
  • Tamar Stephens

  • This is Part 2 of a 2-part series.
  • Part 1 explained what genetic notation is, and
    how the TAS genetic notation for angelfish of the
    species Pterophyllum scalare is structured.
  • Part 2 explains the rules used by the TAS
    Genetics Calculator to create phenotype names
    from the genotypes.

Vocabulary refresher
  • Genetic notation letters used to represent
    genes and alleles
  • Phenotype - The appearance of an individual, such
    as smokey or zebra.
  • Genotype - The genes that create a particular

What does the Genetics Calculator Do?
  • The calculator generates genotypes for any
    hypothetical crosses using the alleles programmed
    into the calculator.
  • The calculator generates phenotype names for any
    genotype for parents and for offspring.
  • This presentation will show you the rules used by
    the Genetics Calculator to create a phenotype

In Part 1 we saw how the Genetics Calculator
displays the genotype.
You can view Part 1 on the TAS website
at mhtmlhttp//www.theangelfishsociety.org/prese
t1Genotypes-1_files/frame.htm Or look for it on
the Presentations page at http//www.theangelfi
The genotype lists the alleles at each locus in
this order
1 Dark Locus (D, M, Gm, g)
2 Zebra/Stripeless Locus (Z,S)
3 Smokey (Sm)
4 Veil (V)
5 Half-black (h)
6 Pearly (p)
7 Albino (a)
8 Streaked (St)
But the phenotype name does not follow the same
Phenotype names are created with a different
  • Here are the Naming Rules

Phenotype names are based on the following
  • 1. albino
  • 2. gold, gold marble, marble
  • 3. streaked
  • 4. zebra, smokey, chocolate, leopard
  • 5. half-black
  • 6. dark descriptions
  • 7. Gm/
  • 8. ghost, blushing
  • 9. pearlscale
  • 10. veil
  • 11. common names that have stuck
  • 12. exceptions

1. Albino (a/a)
  • If the angelfish has the genotype a/a, it is
    simply an albino.
  • For any other genotype that includes a/a,
    albino will list first in the phenotype name.
  • Examples
  • g/g a/a ? albino gold
  • Gm/g a/a ? albino gold marble
  • Sm/ - a/a ? albino smokey

2. Gold, gold marble, marble
  • Gold, gold marble, or marble will come next if
    both alleles at this locus are some combination
    of M, Gm, or g. (M/M, M/Gm, M/g, Gm/Gm, Gm/g, or
  • Examples
  • M/M a/a ? albino marble
  • Gm/Gm a/a ? albino gold marble
  • Gm/Gm /a ? gold marble
  • M/g V/ ? marble veil

Gold Marble
3.Streaked - St/ or St/St.
  • Streaked comes next if the fish contains St/ or
    St/St and has a dark allele (D).
  • Streaked generally doesnt show in the phenotype
    unless a dark allele is present, so only use
    streaked if a dark allele is present.
  • Examples
  • D/ St/ ? Streaked black lace
  • D/g St/St ? Streaked hybrid black
  • D/D St/ ? Streaked double dark black

Streaked Black Lace
4. Smokey (Sm) combinations with or without Zebra
  • Zebra, smokey, chocolate or leopard will come
    next if the fish is Sm/, Sm/Sm with or without
  • Examples
  • Sm/ ? smokey
  • Sm/ - a/a ? albino smokey
  • M/ - Sm/ ? smokey marble
  • Sm/Sm ? chocolate
  • Sm/ - Z/ ? smokey leopard
  • Sm/Sm Z/Z ? leopard
  • Sm/Sm Z/Z - D/ ? leopard lace
  • Z/ - a/a ? albino zebra

Smokey Leopard
5. Half-black (h/h)
  • Half-black is added after the previous color
  • Examples
  • h/h ? half-black
  • Z/Z h/h ? zebra half-black
  • Z/Z h/h a/a ? albino zebra half-black

Zebra Half-Black (in foreground)
6. Dark allele (D)
  • Dark allele descriptions follow half-black
  • Lace for D/
  • Hybrid black for D/g, D/Gm, and D/M
  • Black (dd) or double dark black for D/D
  • Because half-black lace sounds strange, the lace
    was placed before the half-black for half-blacks
    with D/. Other dark combinations like hybrid
    black and clown black were placed after the

6a. Dark Allele (D) continued
  • Lace is used for any phenotype with D/ at the
    dark locus.
  • Examples
  • D/ ? black lace
  • D/ - Sm/ ? smokey lace
  • D/ - Z/ - a/a ? albino zebra lace

Black lace angelfish
6b. Dark Allele (D) continued
  • Hybrid black is used for genotypes with D/g,
    D/Gm, and D/M
  • Examples
  • D/g - S/ ? hybrid black ghost
  • D/g - Sm/ ? smokey hybrid black
  • D/Gm - h/h ? half black hybrid black

6c. Dark allele (D) continued
  • Use Black (dd) or double dark black for D/D
  • Example
  • D/D Sm/ ? smokey black (dd)
  • D/D Z ? zebra black (dd)

Smokey Black
6d. Dark allele (D) continued
  • Because half-black lace sounds strange, the lace
    was placed before the half-black for half-blacks
    with D/. Other dark combinations like hybrid
    black and clown black were placed after the
  • Examples
  • D/ - Z/ - h/h ? zebra lace half-black
  • D/g Z/ - h/h ? zebra half-black hybrid

7. Gold Marble
  • To differentiate gold marble Gm/Gm and Gm/g from
    angelfish with Gm/, gold marble will be added as
    the final color mutation description if the
    fish is Gm/.
  • Examples
  • Gm/g - S/S ? gold marble blushing
  • Gm/ - S/S ? blushing gold marble

Blushing Gold Marble (aka blue koi)
Gold Marble Blushing (aka koi)
8. Ghost and Blushing
  • Ghost and blushing are added to the end of the
    name after the other color mutations. Ghost can
    be listed in parenthesis when its effect is
    questionable. (Marble, gold, gold marble and
  • Examples
  • D/g S/ ? hybrid black ghost
  • D/g S/S ? hybrid black blushing
  • M/M S/ ? marble (ghost)
  • M/M S/S ? marble blushing

Marble Blushing
9. Pearl Scale
  • Pearlscale is added after all other color
    mutations if the fish is p/p
  • Examples
  • g/g p/p ? gold pearl scale
  • D/ - Sm/ - p/p ? smokey lace pearl
  • h/h p/p ? half-black pearl scale

Gold Pearl Scale
10. Veil and Super-veil
  • Veil is added at the end if the fish is V/ and
    super-veil if the fish is V/V.
  • Examples
  • g/g V/ ? gold veil
  • g/g V/V ? gold super-veil

Gold super-veil
11. Common names that have stuck
  • Several common names are in wide enough usage
    that the calculator was programmed to provide
    that name.
  • S/Z ? silver clown
  • D/ - S/Z ? clown black
  • Gm/Gm - S/S or Gm/g S/S ? koi
  • D/ - S/S ?turquoise
  • Sm/ - Z/ or Sm/ - Z/Z ? smokey leopard
  • Sm/Sm Z/Z or Sm/Sm - Z/ ? leopard
  • D/D S/S, D/g S/S ? black velvet (any form
    of black blushing)
  • Gm/ S/S ?blue koi
  • (Gm/ - S/S is commonly referred to by many
    people as a blue koi but the genetics
    calculator calls it blushing gold marble.)

12. Names that dont fit the rules - Clowns
  • Z/S ? silver clown
  • With D/D or D/g the fish is darker and the clown
    markings are harder to see, so black precedes
  • D/g Z/S ? hybrid black clown
  • D/D Z/S ? black clown
  • With D/ the clown markings are more apparent, so
    clown precedes black to distinguish the
    phenotype from a black clown.
  • D/ - Z/S ? clown black

Black Clown
  • The Genetics Calculator will not give names based
    on alleles that do not show in the phenotype.
    For instance, Gm/Gm, Gm/g, and g/g are epistatic
    (suppress the expression) to smokey, halfblack
    and zebra.
  • Thus, with a single dose of gold marble, both
    gold marble and smokey will show in this
  • Gm/ - Sm/ ? smokey gold marble
  • But with Gm/Gm, Gm/g, or g/g the half-black,
    smokey or zebra alleles do not show up in the
    phenotype, so the names are simply
  • Gm/Gm Sm/ ? gold marble
  • Gm/g h/h ? gold marble
  • g/g Z/Z h/h ? gold

What a lot to remember!
  • Fortunately, you do not really need to remember
    all these rules.
  • As you work with your own angelfish, you will
    become comfortable with the names that apply to
  • If you do a cross that gives you a phenotype that
    is new to your experience, you can use the
    genetics calculator to help you figure out what
    to call it.
  • Dont forget that the Phenotype Library is a
    resource to help you understand what most of the
    possible genotypes will look like.

The End
  • Back to the chat room for questions, answers,
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