Saturday, July 1, 2017

Most Modern Horses Descend from Oriental Stallions #Science

Any thinking of Arabian horses has been some vague idea of, oh, they've been breeding them for thousands of years.  It turns out that's not so since they're much more recent than that and they came from the Orient within the last seven hundred years.

Lipizzan horse galloping in winter.

Credit: © Viktoria Makarova / Fotolia

Researchers who have analyzed the Y chromosomes of more than 50 horses representing 21 breeds have found that the paternal lines of nearly all modern horses trace to stallions brought to Europe from the Orient over the last 700 years. The findings reported in Current Biology on June 29 reveal the overwhelming influence of breeding schemes driven by strong selection on males.

With the genetic genealogies in hand, it's now possible to elucidate the origin and relationship of any stallion line in detail, the researchers say.

Science Daily:  Most modern horses are descendants of recently imported Oriental stallions

The genealogy of modern horses is known with great accuracy going back for many generations among the breeders of thoroughbreds and this research means they now have Adam and Eve or at least Adam from the lines of modern horses.

Ed:  they came with the Mongol Hordes!

They came about seven hundred years ago.  (WIKI:  Mongol Empire)

Their analysis of the 52 Y chromosomes showed that the paternal lineages of various modern horses split much more recently than the domestication of the species, which goes back more than 5,000 years. Apart from a few private Northern European haplotypes, all modern horse breeds included in the study clustered into a roughly 700-year-old haplogroup, transmitted to Europe by the import of Oriental stallions, they report. The haplogroup includes two major subgroups (or clades): the Original Arabian lineage from the Arabian Peninsula and the Turkoman horse lineage from the steppes of Central Asia.

- SD

This one really isn't packing any ooh wow science unless you are responsible for thoroughbred horses in some way and the intrigue is regarding the Bedouins and ancient cultures which have been tightly intermingled with horses.  That seemed it went back millennia but apparently not and hence the interest.

The interested student may want to review the source article regarding accumulation of mutations in the Y chromosome as a measure of change and an identification of horses within a given range (i.e. haplogroup).  For the incredibly interested student, there's discovering whatever Bedouins may have done prior to their interest in developing the Arabian bloodline.  Horses had been domesticated thousands of years earlier so presumably they had horses.

This article may have run out of steam quickly for some but others love horses in ways the rest of us can only observe and appreciate.  We know you're out there and perhaps you will find this one worthwhile.

No comments: