Researchers analyzed DNA from more than 1,000 people around the world to study human genomic variations in detail. (Image credit: Boris Zhitkov via Getty Images)
Twenty-two years after the completion of the Human Genome Project, scientists have produced the most extensive catalogue of genetic variations ever compiled.
In two new papers published Wednesday (July 23) in the journal Nature, scientists sequenced the DNA of 1,084 people from around the globe. Using cutting-edge technology, they analyzed long segments of each subject's genetic material, stitched the fragments together, and compared the resulting genomes in detail.
The results deepen our understanding of “structural variations” in the human genome. These variations affect not just one “letter” of DNA code, but large swaths of it – they can be deleted or added to the genome, and include places where DNA has been flipped or moved.
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