A man rests under a blanket while sitting on a bench in a New York subway station, Tuesday, Jan. 28, 2014. (AP Photo/Mark Lennihan, File)
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Bedbugs, the notorious bloodthirsty critters which tormented the residents of New York City some years ago, have become genetically wired to resist pesticides, experts said Tuesday.In a pair of studies published in the science journal Nature Communications, researchers described how bedbug genes have evolved to fight off the most common chemicals used against them. The teams trawled the DNA of the common bedbug, Cimex lectularius, found in temperate climates in the United States and parts of Europe.They took DNA samples from male and female bedbugs, from preserved and living specimens from as far back as 1973 .They tested the genes before and after each blood feeding.One group of genes, known to be shared by other pests like the house fly, cockroach and mosquito, are designed to inhibit synthetic organic compounds found in the most common pesticides.
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