What is the dilute gene?
The dilute gene causes fading of the typical rich coat color found in Labradors. This can lead to a washed-out appearance and is not preferred in breed standards. The dilute colors are silver (dilute chocolate), charcoal (dilute black), and champagne (dilute yellow). This dilution is not recognized by major kennel clubs, which only acknowledge three standard colors for Labradors: black, yellow, and chocolate. The breeding of Dilute Labs can therefore be controversial, as it deviates from the traditional standards of the breed.
There is also controversy over whether they can be considered pure-bred labradors. The dilute gene did not exist in labradors until the 20th century which raises the question of where this gene came from. Many speculate that a dog breed that naturally carries the dilute gene (e.g. Weimaraners) were bred to a labrador. Over the years this recessive trait was passed on so many times between labradors that on DNA tests, they come up as 100% labrador retrievers.
Why is the dilute gene bad?
In some cases, the dilute gene has been associated with skin and coat issues in Labradors. This can result in conditions like hair loss or skin sensitivity, which can impact the dog's overall well-being. Due to the thinning of hair and the decrease in melanin in the skin and coat, these dogs tend to be very sensitive to sunlight. There is also increased evidence of cancers due to the increased exposure and lack of protection from UV.