Wednesday, June 20, 2012

Genomes for tracing geographical origins

Ancestry testing goes for pinpoint accuracy:

Companies use whole genomes to trace geographical origins, reports Ewen Callaway in 'Nature', International weekly journal of science, 6 June 2012..

Condoleezza Rice, former US Secretary of State and national security adviser, ought to be a tough woman to surprise. Yet when Henry Louis Gates Jr, host of a US television series called Finding Your Roots, revealed that nearly half of her genetic ancestry could be traced to Europe, Rice, an African American, told Gates, “I’m stunned.”

Although it is no secret that many African Americans have some European ancestry — a legacy of the transatlantic slave trade — advances in DNA analysis are beginning to provide more detailed insight for individuals. Commercial ancestry testing, once the province of limited information of dubious accuracy, is taking advantage of whole-genome scans, sophisticated analyses and ever-deeper databases of human genetic diversity to help people to answer a simple question: where am I from?


There are further interesting links on that site.

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