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The dogs of Chernobyl: Demographic insights into populations inhabiting the nuclear exclusion zone
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DOI：10.1126/sciadv.ade2537.png)
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Abstract
En 中文
The 1986 Chernobyl nuclear disaster initiated a series of catastrophic events resulting in long-term and wide-spread environmental contamination. We characterize the genetic structure of 302 dogs representing three free -roaming dog populations living within the power plant itself, as well as those 15 to 45 kilometers from the dis-aster site. Genome-wide profiles from Chernobyl, purebred and free-breeding dogs, worldwide reveal that the individuals from the power plant and Chernobyl City are genetically distinct, with the former displaying in-creased intrapopulation genetic similarity and differentiation. Analysis of shared ancestral genome segments highlights differences in the extent and timing of western breed introgression. Kinship analysis reveals 15 fam-ilies, with the largest spanning all collection sites within the radioactive exclusion zone, reflecting migration of dogs between the power plant and Chernobyl City. This study presents the first characterization of a domestic species in Chernobyl, establishing their importance for genetic studies into the effects of exposure to long-term, low-dose ionizing radiation.
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