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Vespa mandarinia report locations map

Vespa mandarinia report locations map

When scientists discovered specimens of the invasive giant hornet Vespa mandarinia on both sides of the border between Washington and British Columbia in 2019, they analyzed the mitochondrial DNA from specimens from both locations and compared them to specimens from South Korea and Japan. While the Washington state specimen shared 99.5 percent of its mitochondrial DNA with the one from South Korea, the Canadian and Japanese specimens shared a bit more than 60 percent of their DNA. Telissa Wilson, with the Washington State Department of Agriculture, says, “We were all surprised that the U.S. and Canada samples were from different lineages when the locations were in such close proximity.” (Image originally published in Wilson et al 2020, Annals of the Entomological Society of America)

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