| K Locus |
We will begin Lesson 2 with the K Locus. The K Locus is where the "traditional" colors of Boston Terriers
are situated. The K Locus attained it's name from the word blacK.
are situated. The K Locus attained it's name from the word blacK.
Black and white Boston Terriers are undoubtedly the most "common" color in the Boston Terrier rainbow.
When someone speaks of Boston Terriers, the black and white tuxedo marked dog comes to mind.
However, a true black and white may be the hardest color to locate. Most all black and white Boston
Terriers have some varying shading of brindle pattern on their body.
Nose Color: Black
Eye Color: Dark Brown
When someone speaks of Boston Terriers, the black and white tuxedo marked dog comes to mind.
However, a true black and white may be the hardest color to locate. Most all black and white Boston
Terriers have some varying shading of brindle pattern on their body.
Nose Color: Black
Eye Color: Dark Brown
| Black and White Dominant Black Genetically Known As: KB |
The most important thing to know about brindle is that it is not defined genetically as a color, it is actually a
pattern. The brindle and white Boston Terrier is the most predominant pattern known in the Boston Terrier
rainbow. Brindle was once believed to be caused by the agouti gene but has since been disproven. This
pattern can occur within any color. Here we see it within the K locus.
Brindle is known to be recessive to black but not much is understood about this gene on a DNA level.
Brindle is understood to be eumelanin striping on a phaeomelanin background, however, depending on
the Boston Terrier it may seem to be reversed. There are many varying shades of brindle, as the striping
can be extreme causing a very dark brindle, or the striping can be very minimal causing a very light brindle
in appearance.
Nose Color: Black
Eye Color: Dark Brown
(The above nose and eye color is given as it pertains to traditional black-brindle and white Boston Terriers.)
pattern. The brindle and white Boston Terrier is the most predominant pattern known in the Boston Terrier
rainbow. Brindle was once believed to be caused by the agouti gene but has since been disproven. This
pattern can occur within any color. Here we see it within the K locus.
Brindle is known to be recessive to black but not much is understood about this gene on a DNA level.
Brindle is understood to be eumelanin striping on a phaeomelanin background, however, depending on
the Boston Terrier it may seem to be reversed. There are many varying shades of brindle, as the striping
can be extreme causing a very dark brindle, or the striping can be very minimal causing a very light brindle
in appearance.
Nose Color: Black
Eye Color: Dark Brown
(The above nose and eye color is given as it pertains to traditional black-brindle and white Boston Terriers.)
| Black-Brindle and White Patterning Gene Genetically Known As: kbr |
Seal and White is defined by the American Kennel Club Boston Terrier Breed Standard as: "appears black
except it has a red cast when viewed in the sun or bright light". This color is perhaps the most difficult to
capture color in photograph. With Boston Terriers, puppies appear to be born with an apparent cast to
their coat that resembles that of a "burnt black" however as they age they seem to outgrow this casting and
most turn to a variance of black/brindle and white.
As seal and white has yet to be successfully mapped by any research team the precise genetic coding is
unknown.
Nose Color: Black
Eye Color: Dark Brown
except it has a red cast when viewed in the sun or bright light". This color is perhaps the most difficult to
capture color in photograph. With Boston Terriers, puppies appear to be born with an apparent cast to
their coat that resembles that of a "burnt black" however as they age they seem to outgrow this casting and
most turn to a variance of black/brindle and white.
As seal and white has yet to be successfully mapped by any research team the precise genetic coding is
unknown.
Nose Color: Black
Eye Color: Dark Brown
| Seal and White The Unknown Gene Genetically Known As: ? |
| I am ready to move onto Lesson #3: B Locus Please Take Me To Lesson #3 Please Take Me To Color Home |
