Genotype and Phenotype Periodic Tables

Try our breeding and coat color calculator:

The pairing of 2 alleles at each genetic locus is known as the genotype. The physical appearance or coat color of your French Bulldog is known as the phenotype. Below is the world’s first interactive genotype and phenotype periodic table and this one was specifically made for Frenchies. These charts will give you a better understanding of which dominate or recessive genes are required to produce certain colors. Click inside of any genotype and you get more information about each allele pairing.

Genotype Periodic Table

All
A Locus (Agouti)
S Locus (Pied)
K Locus (Dominant Black)
B Locus (Testable Chocolate)
Co Locus (Non-testable)
D Locus (Dilute)
E Locus (Mask/Cream)
M Locus (Merle)
L Locus (Fluffy)
I Locus (Intensity)
Ay/Ay
Fawn
Ky/Ky
Non-Brindle
Ay/at
Sable
Ay/a
Fawn
at/at
Tan Points
at/a
Black & Tan
a/a
Black
Kbr/Ky
Brindle
Kbr/Kbr
Brindle
B/B
Non-Chocolate
B/b
Carries Chocolate
b/b
Chocolate
(testable)
Co/Co
Non-Cocoa
Co/co
Carries Cocoa
co/co
Cocoa
(non-testable)
D/D
Non-Blue
D/d
Carries Blue
d/d
Blue
E/E
Black
E/e
Carries Cream
e/e
Cream
Em/Em
Has Mask
Em/E
Has Mask / Carries Black
Em/e
Has Mask / Carries Cream
m/m
Non-Merle
M/m
Merle
M/M
Double Merle
S/S
Pied
S/n
Carries Pied
n/n
Non-Pied
Lh/Lh
Fluffy
Sh/Lh
Carries Fluffy
Sh/Sh
Short Hair
I/I
Normal Intensity
I/i
Carries Intensity
i/i
Intensity
a-locus
k-locus
b-locus
co-locus
d-locus
e-locus
m-locus
s-locus
l-locus
i-locus

Phenotype Periodic Table

All
Fawn
Lilac
Brindle
Chocolate
Blue
Isabella
Cream
Merle
Black
Ay/Ay
Fawn
Ay/at
Fawn
Ay/a
Fawn
Kbr/Ky
Brindle
Kbr/Kbr
Brindle
e/e
Cream
b/b
Chocolate
co/co
Chocolate
d/d
Blue
d/d + b/b
Isabella
d/d + b/b + co/co
Isabella
(new shade)
d/d + co/co
Lilac
M/m
Merle
M/M
Double Merle
d/d + co/co + e/e
Platinum
d/d + b/b + e/e
Platinum
a/a
Kbr/Kbr + a/a
Kbr/Ky + a/a
fawn
brindle
platinum
chocolate
blue
cream
merle
isabella
black