Privacy concerns sparked by human DNA accidentally collected in studies of other species

Sunday, May 21, 2023 - 14:33 in Biology & Nature

Everywhere they go, humans leave stray DNA. Police have used genetic sequences retrieved from cigarette butts and coffee cups to identify suspects; archaeologists have sifted DNA from cave dirt to identify ancient humans. But for scientists aiming to capture genetic information not about people, but about animals, plants, and microbes, the ubiquity of human DNA and the ability of even partial sequences to reveal information most people would want to keep private is a growing problem, researchers from two disparate fields warn this week. Both groups are calling for safeguards to prevent misuse of such human genomic “bycatch.” Genetic sequences recovered from water, soil, and even air can reveal plant and animal diversity, identify pathogens, and trace past environments, sparking a boom in studies of this environmental DNA (eDNA). But ...

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