Thanks Joao for giving the reference that I was referring to.
> I've ever think how the understanding about dogs races evolution
would be so useful to understand IE migration. What kinds of dogs the
IE people carried with them? The wolfish shepherd-dogs? The molossoid
mastiffs? The bracoid bloodhound-like races? The fox-like spitz?
>
> A good article about dog genetic evolution is at SCIENCE vol 276 13-
jun-1997; "MULTIPLE and ANCIENT ORIGINS OF THE DOMESTIC DOG"(
Vilà,
C., et alii)
> The study analyzed the haplotypes of circa 20 races of dogs and 20
wolves from different places and divided them in 4 groups:
> I
> the main group, including only dogs
> II
> derived from Greek and Italian wolves, this one include only the
haplotype D8 (present in Sandinavian Elghund and Jämthund)
> III
> derived from Arabian wolves, include the haplotypes D7 (present in
Siberian Husky, Alaskan Malamute, Giant Schnauzer, Jamthund, Airedale
Terrier, West Highland White Terrier and German Shepherd), D19
(present in German Shepherd) and D21 (present in Mexican hairless dog)
> IV
> derived from Greek, Russian and Romanian wolves, this include the
haplotypes D10 (present in Wire-haired Dachshund and Flat-Coated
Retriever), D24 (present in Golden Retriever) and D6/W6 (present in
Romanian and Russian wolves, and in Mexican hairless, German
Shepherd, Golden Retriever, Basset, Bulldog, Belgian Groenendael,
Afghanhound, Maremman, Otterhound, Toy Poodle, Irish Water Spaniel
and Tibetan Spaniel)
Tieing this evidence together via the archaeology and the spread that
I mentioned.
Type 1: Probably derived from the Zarzian culture, which, on current
evidence is the earliest to show domestication of dogs.
Type 2: Seems to have derived when type 1 dogs were carried by
mesolithic hunters northward and westward. Backcrossings to wolves
led the Greco-Italian wolf genes into the original dogs.
Type 3: again began in the Middle East. The D7 and D21 Haplotypes
are also linked to many of the central asian breeds. It seems that
these came Westward during the Scythian/Sarmatian times as
their "dogs of war".
Type 4: again by backcrossing to wolves in the Northern Balkan
areas. It possibly occurred with the spread of LBK Cultures. Piotr
you would be interested here,
Joao continued
> It's important to note that any race can have many different
haplotypes. The split in 4 groups may point to four different
domestications. A strong mystery to me is the origin of Aztecan races
like Chihuahua and Hairless dog (Xolotzcuintl): did they come from
North American wolves? From China? Egypt? Atlantis?
The Chihuahua and Mexican Hairless I believed were derived from Type
3, but I don't know of any papers giving gene sequencing and genetic
distance in these cases, so I am going by the seat of my pants here.
Regards
John