Genetics and the Shape of Dogs
Ostrander (Elaine A.)
Source: American Scientist Website
Paper - Abstract

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Author's Abstract

  1. A Pekingese weighs only a couple of pounds; a St. Bernard can weigh over 180. Both dogs, though vastly different in appearance, are members of the same genus and species, Canis familiaris.
  2. How dog breeds can exhibit such an enormous level of variation between breeds, and yet show strong conformity within a breed, is a question of interest to breeders and everyday dog lovers alike.
  3. In the past few years, it has also become a compelling question for mammalian geneticists.

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