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 2024 Litters

Jessie and Wilson

  

We are currently expanding our Support dog training program, if you, your organization, or a loved one is in need of a support dog, please reach out and let us help pair you with your future best friend!

1 Male and 2 Females Availble

Well weren't we surprised when a little extra sprinkle of color showed up on our black pups! Here is a little history to how Labrador Retrievers can have a some tan markings on a black Lab.

 

The Guiding Eyes breeding colony has been derived in part from the Whygin Labs, a prominent kennel that was very successful with show and hunting dogs in the 1970s. Some of the black and gene coloring stems from the Whygin line. Since they breed for optimum guide dogs, the primary criteria are confident, easy to handle dogs with excellent health and a sturdy conformation. Guiding Eyes and Dreaming Tree Labradors do not remove dogs from our breeding colony if they produce these coat colors. These pups have the same temperament and health traits as their solid colored littermates.

Today, it is recognized that tan points are controlled by the “at” allele of the A locus and that it is recessive to most of the alleles found at the A locus of Labs. Because this allele is recessive, it may be passed through many generations before a breeder is aware that the allele is present. In order for the allele to be expressed, a carrier would have to be bred to another carrier of this same allele and both parents would have to be carriers of the wild-type (E+) Mc1 receptor. This explains the low frequency of expression of this trait in the current Labrador population.
Brindling describes alternating expression of black and red color in the hair throughout the coat. There are several possible causes for this fault that occasionally appears in Labs. One cause may be attributed to the “ebr” allele that controls brindling in many other breeds of dogs. For expression of this trait, both sire and dam would have to carry the mutant “ebr” allele, which is recessive to the “E” allele, but more dominant than the mutant “e” allele for yellow.
 
Alternatively, brindling in Labs may be the result of what geneticists call a mosaic. A mosaic indicates differences in the somatic tissue of heterozygotes that come about during mitotic division of somatic cells (recall from above that somatic cells are those that make-up the body). There are two possible ways by which an individual may become a mosaic. The first is called chromosome nondisjunction by which during division into daughter cells, one of the chromosomes fails to separate from its duplicated chromosome. As a result, one daughter cell receives an extra chromosome and the other receives an unpartnered-chromosome.The second way that a mosaic may be produced is called chromosome loss by which the chromosome containing the dominant   allele gets left behind when the daughter cell’s nucleus reconstitutes.  In either situation described above, the daughter cells of these altered somatic cells will contain the same alterations. As a result, one will observe a mosaic or brindled pattern of normal color mixed with color produced by the altered somatic cells. This condition has been reported in a Lab showing mosaic black and yellow coat color. When this Lab was bred to other Labs of normal coat colors of black, chocolate, or yellow, it was determined that the variation in color was not due to a mutated E locus allele (like the “ebr” allele) because none of the offspring demonstrated this phenotype. Rather, this coat characteristic was attributed to a chromosomal alteration as described above.
Therefore, the brindling phenotype rarely observed in Labs might be the result of a stable allele mutation (such as the “ebr” allele), or a random somatic chromosome mutation involving the E or B loci. 


 

PUPPY IN TRAINING

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This is Ms. Little she is a 12 week old English Labrador who has begun training in our dogs of service program. She is a highly intelligent, very food motivated, love bug.  I guess I would say my favorite kind of puppy to train!  She has the personality and potential to do anything her family could ever ask. 

She is ready to meet her new family!

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