Y-DNA Haplogroup – I-S17250 – Slavic DNA / Cucuteni–Trypillia culture
Todays video takes a look at my 2x great-grandfather – Theodorus Fedyszyn paternal Y-DNA Haplogroup. A group called I-S17250, The age of this mutation is estimated at roughly only 1,800 years – This group is a subclade of 12a1b which was a patriarch line of two separate subclades – L161.1 and L621. For the purpose of this video it is the L621 Line that we are interested in and the one we will focus on in this video. The following chart shows the Phylogenetic Tree of Haplogroup I2. You will see on the chart that Haplogroup L621, Falls within the Mesolithic Period and as we follow that lineage down you will see that S17250, is one of three subclades that belong to CTS10228. S17250 is a Slavic Haplogroup that broke away during the Iron age period. Haplogroup I2a1b-L621 This branch is found overwhelmingly in Slavic countries. Its maximum frequencies are observed among the Dinaric Slavs (Slovenes, Croats, Bosniaks, Serbs, Montenegrins and Macedonians) as well as in Bulgaria, Romania, Moldavia, western Ukraine and Belarus. It is also common to a lower extent in Albania, Greece, Hungary, Slovakia, Poland, and south-western Russia. I2-L621 is also known as I2a-Din (for Dinaric). The high concentration of I2a1b-L621 in north-east Romania, Moldova and central Ukraine reminds of the maximum spread of the Cucuteni-Trypillian culture (4800-3000 BCE). No Y-DNA sample from this culture has been tested to date, but as it evolved as an offshoot from the Starčevo–Kőrös–Criş culture, it is likely that I2a was one of its main paternal lineages, and a founder effect could have increased considerably its frequency. The Cucuteni-Trypillian culture was the most advanced Neolithic cultures in Europe before the Indo-European invasions in the Bronze Age and seems to have had intensive contacts with the Steppe culture. From 3500 BCE, at the onset of the Yamna period in the Pontic-Caspian Steppe, the Cucuteni-Trypillian people started expanding east into the steppe of what is now western Ukraine, leaving their towns (the largest in the world at the time), and adopting an increasingly nomadic lifestyle like their Yamna neighbours. It can easily be imagined that Cucuteni-Trypillian people became assimilated by the Yamna neighbours and that they spread as a minority lineage alongside haplogroups R1a and R1b as they advanced toward the Baltic with the Corded Ware expansion. Alternatively, I2-L621 lineages could have lived in relative isolation from the mainstream Proto-Indo-European society somewhere around Ukraine, Poland or Belarus, then as the centuries and millennia passed, would have blended with the predominantly R1a populations around them. The resulting amalgam would have become the ancestors of the Proto-Slavs. Nowadays, I2a1 is five to ten times more common than G2a in Southeast Europe, while during the Neolithic period G2a was approximately four times more common. What can explain this complete reversal? At one point in history, I2a1 lineages seem to have benefited from being on the winning side. Apart from a minor boost from (possibly) joining Yamna’s westward expansion to Europe, the principal determining event that allowed I2a1b-L621 to become a major Eastern European lineage was probably the Slavic migrations from the 6th to the 9th century CE. Most modern Eastern Europeans belonging to I2a1b fit into the CTS10228 subclade, which is thought to have arisen 5,600 years ago (just before the Yamna period and the Trypillian expansion into the steppe). #IS17250 #YDNA #Haplogroup *
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- Published: 23 May 2022
- Location: Chelmsford, Essex
- Duration: 14:31
- Photography – Stephen Robert Kuta
- Written by – Stephen Robert Kuta
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