Breeders, keepers, importers and lovers of Havanese dogs

Colour Variety In Havanese

The Havanese exists in many colours. A Havanese is unique with regard to other breeds. An interesting difference is its coat colour. Not many breeds have such a large variety in colour shades and colour patterns as a Havanese


The genes involved in affecting the coat colour is very interesting topic. In some breeds it is easy to predict the coat colours of a possible litter from the coat colours of the mating  Sire and Dan. The Havanese are not easy to predict litter colours mainly because of the variety of accepted coat colours.

Some people would argue that coat colours are not important and that a breeder should only concentrate on improving lines to match the pedigree standard This is important but coat colours also has its place.

The following information may not be accurate but is what I have pulled together from many sources to assist in predicting mating outcomes of Havanese. 


In dogs there are generally recognised colour series (loci). Havanese are believed to have the following Gene Locus:

A locus - AGOUTI
Ay - sable 
as - saddle-marked 
at - tan points 
a - recessive black
E locus - EXTENSION
Em - black mask 
E - normal extension (no mask) 
e - recessive red

B locus - BROWN
B - non-liver 
b - liver
K locus - BLACK
K - solid black 
kbr - brindle 
k - non-solid black
C locus - CONCENTRATION
C - normal phaeomelanin 
cch - chinchilla 
ce - extreme chinchilla

S locus - SPOTTING
S - no white spotting 
si - irish spotting 
sp - piebald 
se - extreme irish spotting 

s-  trim

D locus - DILUTION
D - no dilution 
d - dilution of eumelanin to blue or isabella
 

In simple dominance; if there are two dominant genes, the dominant is expressed. If there is one dominant and one recessive, the dominant is again expressed and the recessive will be hidden. The recessive gene will only be expressed if there are two recessives.

In naming alleles, capital letters are used for the ones considered dominant and lower case letters are used for ones considered recessive

The letter itself tells you which locus it is found on; for example, anything called [E] or [e] belongs on the E locus.Those little letters that are superscripted in the allele names are variations which can be either dominant or recessive.If the superscript is attached to a capital letter, then it's a dominant variation and if attached to a lower case letter, then it's a recessive variation. 

phenotype is what the dog looks like in appearance, while genotype is the non visible genetic codes responsible for making what you see.

Locus can have an affect on one another, so below is a diagram that  is meant to help explain why Havanese get such a mixture of offspring in the same litter.


This then leads us to attempting to map out the genetic code for each type of coat colour.

Phenotype
 
Genotype
 
Description
Black
 
Note: A Allele will only be know from the parents
 

-- B- D- E- K- SS

black Havanese with black pigment (all dogs that have “K-“ and “B” are black)

Chocolate
 
Note; A Allele will only be know from the parents

-- bb D- E- K- SS

chocolate Havanese with chocolate pigment (all dogs that have “K” and “bb” are Chocolate)

Fawn (are all receive red “ee”)
  • White
  • Cream 
  • Champagne
  • Apricot
  •  Gold
  • Red
 
AyB- ee C- kk SS
AyB- ee c- kk SS

clear (white, cream, champagne, red, golden etc) Havanese with black pigment

 
Ay- bb ee C- kk SS
Ay- bb ee c- kk SS
clear Havanese with black pigment
 
Ay- B- ee C- kk SS
Ay- B- ee c- kk SS
clear Havanese with chocolate pigment (choc nose)
 
Ay- bb ee C- kk SS
Ay- bb ee c- kk SS
clear Havanese with chocolate pigment  (choc nose)
 

atat B- ee C- kk SS
atat B- ee c- kk SS

clear Havanese with black pigment
 

atat bb ee C- kk SS
atat bb ee c- kk SS

clear Havanese with chocolate pigment (choc nose)

B- ee C- kk - sp-
clear Havanese with black pigmentation (red parti)
Sable

Ay- B- C- D- E- kk
Ay- B- C- D- Em- kk
Ay- B- c- D- E- kk
Ay- B- c- D- Em- kk

sable Havanese with black pigment (black tips or silver is Silver gene is present)

Ay- bb C- D- E- kk
Ay- bb C- D- Em- kk
Ay- bb c- D- E- kk
Ay- bb c- D- Em- kk
Sable Havanese with chocolate pigment (brown tips)
Saddle

as- B- D- E- kk S-
Saddle Havanese with black pigment
Black and Tan
 

atat B- C- D- E- kk S-
atat B- c- D- E- kk S-

Black & tan Havanese with black pigment
Chocolate and Tan
 

atat bb C- D- E- kk S-
atat bb c- D- E- kk S-

chocolate & tan with chocolate pigment
Pied
  • Extreme Piebald
  • Parti colour
  • Irish pied
  • Trim - White markings
Note: A and C will only know from the parents

Ay- bb D- E- kk - s-
Ay- bb D- Em- kk - s-

as- bb D- E- kk - s-
as- bb D- Em- kk - s-

Pied with chocolate pigment

Ay- B - D- E- kk - s-
Ay- B - D- Em- kk - s-
as- B- D- E- kk s-
as- B- D- Em- kk s-
Pied with black pigment
Tri Colour
 
 

atat bb D- E- kk s-
atat bb D- Em- kk s-

Tri colour with chocolate pigment
 
atat B- D-  E- kk s-
atat B- D-  Em- kk s-
=Tri colour with black pigment


This could then lead us to predicting pssible mating outocmes of litter colours.

Much of the  published colour research is based on hypotheses and theory based on what is observed in assorted breeds of dogs. I would like to start collecting coat colour data on the Havanese as there is much more to learn.