Researchers say most of the dogs they are studying appear to be descendants of pets that residents were forced to leave behind when they evacuated the area.
Mousseau has been working in the Chernobyl region since the late 1990s and began collecting blood from the dogs around 2017. Some of the dogs live in the power plant, a dystopian, industrial setting. Others are about 9 miles or 28 miles away.
“That was a huge milestone for us,” said Ostrander. “And what’s surprising is we can even identify families” — about 15 different ones.“We can compare them and we can say: OK, what’s different, what’s changed, what’s mutated, what’s evolved, what helps you, what hurts you at the DNA level?” Ostrander said. This will involve separating non-consequential DNA changes from purposeful ones.
Dr. Kari Ekenstedt, a veterinarian who teaches at Purdue University and was not involved in the study, said it’s a first step toward answering important questions about how constant exposure to higher levels of radiation affects large mammals. For example, she said, “Is it going to be changing their genomes at a rapid rate?”
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