Natural Bobtail (T Locus)

The T Locus, associated with the T gene, is responsible for the natural bobtail trait in dogs, which results in a naturally shortened tail or, in some cases, a complete absence of a tail. This trait is visible from birth and is characterized by a tail length that is significantly shorter than that of dogs with a standard, full-length tail. The natural bobtail is a common feature in several dog breeds, including the Australian Shepherd and Pembroke Welsh Corgi, and is considered a desirable trait in certain breeding programs due to its distinctive appearance. While natural bobtails generally do not cause health issues, it is important to distinguish between naturally bobtailed dogs and those with docked tails, which are surgically shortened. Understanding the genetic basis of the T Locus can help breeders select for this trait, ensuring the consistent appearance of naturally bobtailed offspring.