MARCH 29,
2019
There are no
signs that hybrids of dog and wolf have contributed to the Scandinavian wolf
population – a matter that has been discussed, especially in Norway. These
wolves appear to have originated from the Nordic region or adjacent parts of
Northern Europe, new genetic research from Uppsala University shows.
In every
mammal, the male-specific Y chromosome is passed on from father to son only.
Patrilines (lines of descent) are thus formed. These can be followed very far
back in time, enabling the origin of animals living today to be traced.
Linnéa
Smeds, bioinformatician and Ph.D. student at the Evolutionary Biology Centre,
Uppsala University, surveyed the composition of the wolf's Y chromosome.
Subsequently, she compared Y chromosomes in wolves from Scandinavia, Finland and other parts of the world, and
in dogs.
"The
lines of descent found in the Scandinavian wolf population haven't been found
in any dogs," says Hans Ellegren, Professor of Evolutionary Biology, who
headed the present study.
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