North American domestics with old Spanish ancestry:
- Saddle-bred, Tennessee walker
- Results of cross between European and Spanish bred horse
- Many horses came from Carribean to New England which was the centre of horse breeding
for a long time
Estimate 3,000 North American horses with old Spanish origins
Chilcotin horses in B.C.
- Spanish ancestors may have come up from Mexico
- only takes one individual to get Spanish variant into population
- transferrin variant is quite rare — Cothran tested hundreds of thousands
of horses — 120 breeds and 100 different wild populations — only saw
that marker a few times
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