Читать книгу Horse Genetics - Ernest Bailey - Страница 39

• Domestic horses belong to the family of odd-toed mammals called Perissodactyla.

• Within the family the horses are members of the genus Equus, which includes horses, asses, Asiatic asses and zebras.

• Among the differences in equid species are vastly divergent chromosome numbers. The evolution of equids entailed extensive chromosome rearrangement.

• The different species can produce viable offspring; however, they are almost always sterile due to the differences in chromosome number.