The affected dogs are generally characterized by a normal sized trunk and short limbs. Dogs with chondrodysplasia (CDPA) have short legs; this phenotype is characteristic for many breeds such as Welsh Corgi and Dachshund.
Chondrodystrophy (CDDY) is caused by a separate mutation, also includes a short-legged phenotype as well as abnormal premature degeneration of intervertebral discs leading to susceptibility to intervertebral disc herniation (IVDD).
The inheritance of CDDY is semi-dominant (dogs with 2 mutations are smaller than dogs with 1 mutation. However, the inheritance of IVDD is autosomal dominant meaning that 1 mutation is sufficient to express IVDD phenotype.
Genetic testing for these mutations can help breeders to determine if CDDY is present and to identify dogs at risk for IVDD. In breeds where both types of mutations are present, breeders can benefit from test results to implement breeding strategies to reduce incidence of CDDY, while keeping the short-legged phenotype caused by CDPA.
Fine white long fur, resembling cottonwood fluff. Intelligent, adaptable and friendly. This dog simply loves the company of people and will do anything to cheer his owner up. Height is approximately 25-28 cm and weight between 4 and 6 kg. This small breed comes from Madagascar, where it was especially popular in the south of the island, around the town of Tuléar. The amusing characteristics of these long-lived jesters include unique vocal expressions and a knack for walking on their hind legs.
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