Ancient Indoeuropean and Saka Central Asian horses and domestication - article on paleogenomics*

Salvete Omnes,
I came across this article - Ancient genomic changes associated with domestication of the horse, - published in Science April 2017. Zainolla Samashev, one of the authors, made it available for download and study at academia.  - many thanks
the reseachers exmamined horses from:
 a mare - Sintashta Culture, Chelabinsk Russia - Indoeuropean horse chariots from early Bronze Age (some human DNA discussion here)
 two stallions -  Arzhan I, Tuva, Russia  (Iron Age Scythia)
 13 stallions - Berel kurgan II, Kazakhstan ( Iron Age Scythia)

The article talks about the most ancient of domesticated horses, about the Iron Age Saka/Scythians and their horse husbandry, their breeding methods that did not disrupt natural herd structures (tabun and stallion harems) that resulted in diversity of genetic material in their horse sherds,. Nota bene the researchers found evidence for  horse milking ,  coat colors preference and robust forelimbs ( metacarpal bones - re anatomy and horse conformation - check M. Horace Hayes -Points of Horse and dr Deb Bennett site).

Also, do check this free-access article on this study from the New York Times that does explain the Science article in layman's terms.
note that the Berel kurgan horses (article on Berel horse sacrifice)  were subject  to an older genetic study,  in 2005 - a summary of article available here. Nota bene Yakutia horses alias Yakut Horse (Long Riders Guild Academic Foundation has also an article on the horse) - this unusual horse has a fine article devoted to its genetic origin and makeup - Tracking the origins of Yakutian horses[...]. - can be read here.

*paleogenomics