As an addendum to a previous post, Livestock guardian breeds accustomed to a wide range of temperatures and extreme heat would include native breeds of the current day Turkish regions including the Kangal and Akbash dogs, as well as perhaps the Sage Koochee from Afghanistan.   I do not include the anatolian shepherd, as that is a mongrelized Kangal in the opinion of many of my Turkish friends and colleagues.  I do believe there are DNA studies that confirmed that, however, I do not have the studies in front of me at this time.  I will see if I can dig them up from my archives.