Three interesting U106+ individuals here:
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CGG_2_022616 - early medieval (circa 700 AD) Italian, R-L48>L47>Z159
CGG_2_023745 - Bronze Age Spanish (circa 1550 BC, Cuesta del Negro, 37.33N 3.23W), R-BY30097>S18632
CGG_2_023808 - Bronze Age Spanish (circa 1950 BC, Motilla Del Azuer, 39.04N 3.50W), R-Y3444 ~= R-BY30097>FTT8>FGC396
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The Italian is likely explainable through post-Roman or Roman-era migrations, but the Spanish pair are much earlier. They are the first evidence we see of early R-U106 migrations to south-west Europe, at a surprisingly early date. These clearly are less-successful migrations, as these haplogroups didn't really take off in Spain. It's likely that these particular R-S18632 and R-FGC396 lines died out.
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In different circumstances, they might have become equivalent to R-P312>DF27. Getting to Spain by about 1950 BC probably meant riding along with the Bell Beaker resurgence that took R-DF27 in particular into Iberia, hence this is the first real evidence we have that some R-U106 actually took part in the Bell Beaker migrations, even if they weren't some of the main drivers behind them.
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CGG_2_023808 sits towards the end of the predicted range of ages for R-FGC396. This could mean that he is actually pre-FGC396, and only positive for some of the SNPs that make up the current list for haplogroup R-FGC396.
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Cheers,
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Iain.
