Genetic continuity across the millennia in central Poland

Apparently, ancient DNA and anthropological research on the populations of what is now central Poland suggests strong genetic continuity in the region since the Neolithic or even Mesolithic. Science in Poland has a news feature about the soon to be published study (see here). Below are a few quotes from the article. Emphasis is mine:

How were the people in Poland changing over the centuries, from the early Middle Ages to the 19th century? Did the Slavs migrate to our territories, or are they indigenous? The 3D scanning project and digital access to skulls, skeletons and DNA from human remains from central Poland is expected to help answer these questions.
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Research shows that the shape of the cerebral part of the skull has changed over the centuries — people in the early Middle Ages had more elongated heads. This interesting phenomenon has not been fully explained yet. «There are many theories on this subject, but it is not known whether this was a microevolutionary genetic change, or perhaps an environmentally conditioned one, associated with a reconstruction of the skull as a consequence of the chewing apparatus being relieved» — he adds.
Researchers are also trying to assess the level of diversity of the population living in the territory of present-day Poland during that period and whether migrants from other areas of Europe, for example from Scandinavia, appeared here. «There is the topic of participation of Scandinavian groups in the creation of the Polish State. Such groups indeed penetrated Poland, they could be hired warriors. But I think that, for example, we can probably put aside the hypothesis that Mieszko I was Scandinavian» — the researcher says.
The features, the variability of which anthropologists study, include the height of the body. We already know that, for example, people in the early Middle Ages in Poland were relatively tall, similar to Poles in the 1960s. Later there was a clear decline in body height, lasting until the 19th century.
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There are already first conclusions from the research of the team from the Biobank Laboratory and the Department of Anthropology. The researchers believe that in the case of the population living in Kujawy there was a surprisingly strong genetic continuity, dating back to the time of the first farmers, 7.5 thousand years ago.
«It seems that we are dealing with an interesting genetic continuation in the population living in Kujawy from the early Middle Ages to the 19th century. The roots of these populations probably reach the Neolithic, perhaps even the Mesolithic» — the scientist suggests.

Source: 3D scans of skulls and a collection of ancient DNA will be available on the information platform e-Czlowiek.pl
See also…
They came, they saw, and they mixed

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