The Xoloitzcuintli (/zoʊloʊiːtsˈkwiːntli/), or Xolo for short, is a hairless breed of dog, found in toy, miniature, and standard sizes. The Xolo also comes in a coated variety and coated and hairless can be born in the same litter. It is characterized by its sparse hair coat and a severe oligodontia. This phenotype is a consequence of Canine Ectodermal Dysplasia caused by a mutation on the Foxl3 autosomal gene. It is also known as the Mexican hairless dog in English-speaking countries and is one of several breeds of hairless dog.
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