A GPS in your DNA

While your DNA is unique, it also tells the tale of your family line. It carries the genetic history of your ancestors down through the generations. Now, says a Tel Aviv University researcher, it’s also possible to use it as a map to your family’s past.

Prof. Eran Halperin of TAU’s Blavatnik School of Computer Science and Department of Molecular Microbiology and Biotechnology, along with a group of researchers from University of California, Los Angeles, are giving new meaning to the term “genetic mapping.” Using a probabilistic model of genetic traits for every coordinate on the globe, the researchers have developed a method for determining more precisely the geographical location of a person’s ancestral origins.

The new method is able to pinpoint more specific locations for an individual’s ancestors, for example placing an individual’s father in Paris and mother in Barcelona. Previous methods would “split the difference” and place this origin inaccurately at a site between those two cities, such as Lyon.

View the original article here: A GPS in your DNA

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