DNA diversifies domestication's roots.(mitochondrial DNA study of modern cattle indicates domestication had separate historical roots on each continent)(Brief Article) From: Science News | Date: May 25, 1996| Author: | COPYRIGHT 1996 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Scientists generally trace the domestication of the wild ox, or aurochs, to about 10,000 years ago in ancient Turkey or nearby parts of southwest Asia. These beasts of burden then served as the founding population for modern cattle breeds throughout the world, the predominant theory holds. A new mitochondrial DNA study in living cattle breaks from the scientific herd on this issue.

Genetically discrete breeds of African, Asian, and European cattle existed 22,000 years ago or more, suggesting that domestication arose separately on each continent, assert Daniel G. Bradley, a ...

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