Register to reply

Canine family tree reflects human hand

by iansmith
Tags: canine, family, hand, human, reflects, tree
Share this thread:
May26-04, 11:00 AM
Sci Advisor
PF Gold
iansmith's Avatar
P: 1,430
WASHINGTON - Most genetic variation in modern dogs was introduced by humans through selective breeding programs, researchers have found.

This is among the surprising findings of a comparison of dog and wolf DNA by researchers building a canine family tree.

Researchers took DNA samples from 414 purebred dogs representing 85 breeds to see how the canine genome accounts for the smallest Pekinese, curly poodle or herding border collie.

Scientists used a computer program and statistical analysis to identify a dog's breed based on the subtle differences in its genetic profile.

Geneticist Elaine Ostrander of the Fred Hutchinson Cancer Research Centre in Seattle and her colleagues found the breeds evolved into four main groups:

* An ancient group of older hounds like the Afghan, dogs of Asian origin, such as the Chinese Shar-pei, and the northern Spitz dogs like the Siberian Huskey most closely resembled the wolf.
* The Mastifs such as Rottweilers, bulldogs and boxers that share large bodies and square-shaped heads.
* Working dogs like collies and sheep dogs.
* Sporting dogs like hounds and terriers.

For the Science Article
Phys.Org News Partner Biology news on
'Office life' of bacteria may be their weak spot
Transparent larvae hide opaque eyes behind reflections
Peacock's train is not such a drag
May26-04, 11:27 AM
P: n/a
Let them all breed together long enough and my understanding is they 'mutt out'. I love mutts, they're hotdiggitydogulas !

Register to reply

Related Discussions
Some Sad, now glad, Canine News General Discussion 92
DNA family tree: who is the grandmother, mother, and daughter? Biology, Chemistry & Other Homework 1
Looking for info that reflects negativly on U.N. Current Events 33
Equine and canine parental test kit ... Biology 1
Chimps Belong on Human Branch of Family Tree, Study Says Biology 12