Download Angelfish genetics

Genetics
Michelle Bohanan
March 27, 2008
© Gil Repetto
© Gil Repetto
© M. Bohanan
© M. Bohanan

Uppercase symbols indicate the gene is
dominant
Dominant genes express a trait whether they are
homozygous or heterozygous
 Dominant genes sometimes show
incomplete dominance


Lowercase symbols indicate the gene is
recessive

Recessive genes express a trait only when they are
homozygous
© Gil Repetto
Standard (+/+)
© M. Bohanan
Standard (+/+)
Single-Dose Veil (V/+)
© M. Bohanan
© M. Bohanan
Standard (+/+)
Double-Dose Veil (V/V)
Single-Dose Veil (V/+)
© M. Bohanan
© M. Bohanan
© M. Bohanan
Mutations –
Dark (D)
Marble (M)
Gold Marble (Gm)
New Gold (g)
(may be unexpectedly dominant )
Dark Locus
Silver
(+)
Dark
(D)
Marble
(M)
Gold Marble
(Gm)
New Gold
(g)
Silver
(+)
+/+
D/+
M/+
Gm/+
+/g
Dark
(D)
D/+
D/D
D/M
D/Gm
D/g
Marble
(M)
M/+
D/M
M/M
M/Gm
M/g
Gold Marble
(Gm)
Gm/+
D/Gm
M/Gm
Gm/Gm
Gm/g
New Gold
(g)
+/g
D/g
M/g
Gm/g
g/g
Black
Lace
Smokey
Locus (Sm)
© Gil Repetto
Mutations
Chocolate
Smokey Locus (Sm)
Pearlscale Locus (p)
Halfblack Locus (h)
Albino Locus (a)
© Gil Repetto
Mutations
Blushing (S/S)
Zebra (Z)
Stripeless (S)
Platinum Blue (~pb~)
© M. Bohanan
Combinations ?
What are the possible genetic
combinations that would
produce this phenotype?
Clown (Z/S)
Ex.
Zebra (Z)
Stripeless (S)
Z + S = Z/S = Clown
© Rich & Judy Halas
Combinations ?
What are the possible genetic
combinations that would
produce this phenotype?
Clown (Z/S)
Ex.
Zebra (Z)
Stripeless (S)
Z + S = Z/S = Clown
Albino pearlscale
a/a- p/p
Albino Locus (a)
a/a
X
Pearlscale Locus (p)
p/p
Black Clown
(D/D - Z/S)
© Rich & Judy Halas