Rare Bulldogs
Instagram

Go back to Previous Page
Color Genetics Study

Go back to Previous Page
Can't Find something? Try our Site Search:

search tips  sitemap
What an honor! We just received a request to use our dogs and to work with one of the top Genetic Labs on the complicated black colors, there being 4 or more, in connection with the English Bulldog Breed. Of course we accepted. It may be several months, but we will share their findings and explanations when the study is finished. This will help all Rare Color EB Breeders tremendously in knowing what to expect from the matches they choose in their breeding programs. It will also help me greatly, in accurately updating the Official Color Chart for English Bulldogs!
These are the Rare Bulldog Babies being used in the Study
Black Tri English Bulldog PuppyBlue English Bulldog StudBlue Fawn QUAD English Bulldog StudBlack and Tan English Bulldog
Update: Magma has been asked to participate in the study!
Black English Bulldog
Update June 2011
Update from the Geneticist: The dominant black gene is just black, whereas a Black Tri or Black & Tan is genetically a sable dog with excessive black markings. So you cannot get black tri or black & tan from a dominant black dog, because the black will be masked. Dominant black masks, or covers tan points. Therefore the dominant black gene & the black tri are 2 separate genotypes. This is also why you can have a black tri that shows no visible tan pointed pattern, the dog looks black & white but can be genetically tan pointed, a black tri, when it carries the Kb (dominant black) gene.

Recessive black is, aesthetically, no different to dominant black. The only difference is in the breeding - a solid black puppy could be born from two parents who are non-solid black if they both carry (without expressing) one copy of the recessive black gene, whereas a dominant black pup could only be born if one or both of its parents are also dominant blacks that express the color. Another important aspect of recessive black is that it is on a different sequence of locus to dominant black. The only way that a dog can be solid black if it is Kb on the K locus. The tan points on a recessive black tri will not show IF the white is in the spots where normally the tan points would be.
 
RARE BULLDOGS PUPPIES OUR DOGS RESOURCES
CONTACT US
ABOUT US
VERIFY US
RB REVIEWS
DREAM FOUNDATION
NURSERY
EXPECTING MOMS
ADULT NURSERY
ADOPTION STEPS
WAITING LIST
DEPOSITS/PAYMENTS
HAPPY PARENTS 2015
HAPPY PARENTS 2016
HAPPY PARENTS 2017
SHIPPING PUPPIES
STUDS
DAMS
MINI MITE MUNCHKINS
MARVELOUS MERLES
PURPLE BULLDOGS
BLU DREAMS
LILAC PASSIONS
BLACK BEAUTIES
CHOCOLATE SENSATIONS
PLATINUM PERFECTIONS
SEAL EXCLUSIVES
RAREST LITTER
RB VIDEOS
STAR BULLYS
HEALTH TESTING
SITE MAP
PARENT RESOURCES
POTTY TRAINING
MICROCHIPS
HEALTH ARTICLES
NUVET IMMUNE BOOSTERS
WEB DESIGN
DREAM FOUNDATION
SHIPPING PUPPIES
SHIPPING SEMEN
LINK EXCHANGE
       
  SHOW RING POLICY COLOR  
CBCA
THE CBCA

We are proud Members!
RB CHAMPIONS
AKC/BCA BREED STANDARD
CBCA
AKC
ABKC
HEALTH TESTING
5 YEAR GUARANTEE
STUD SERVICE POLICY
RB POLICIES
RB TERMS OF USE
RARE COLOR CHART
COLOR GENETICS Q AND A
GENETIC BASIC LESSONS
DNA TESTING CENTERS
BLUE-CHOCO CHART
BLACK COLOR STUDY
STUDY: SABLE VS FAWN
THE MERLE CONTROVERSY
MERLE
BLUE
LILAC
BLACK
CHOCOLATE
PLATINUM
SEAL
CBCA
THE CBCA

We are proud Members!
Instagram
                                                                                                                                   

TERMS OF USE