Maciamo, do we know if the 76pc of R1b in the Garfagnana (NW Tuscany) is mainly R1b-U152?
No, it was just PxR1a, so it includes all subclades of R1b and even Q and R2. Anyway the sample size was tiny (n=42) and therefore not very reliable.
However this new study has similar figures for
La Spezia-Massa (Northwest Tuscany, only 40 km away from Garfagnana):
- 17 samples out of 24 are R1b (71%)
- 9 samples out of 24 are R1b-U152 (37.5%)
53% of all R1b is R1b-U152.
The 8 other R1b samples are M269 (2x), P312 (4x) and L21 (2x). Mostly Celtic R1b (25% of all haplogroups), although M269 could also be Greek/Albanian or Etruscan/Anatolian.
In contrast there is less R1b in
Grosetto-Siena (southern Tuscany):
- 42 out of 86 samples are R1b (49%)
- 32 samples out of 86 are R1b-U152 (37%)
Even though R1b is lower, this time 76% of all R1b is R1b-U152.
Among the 10 other R1b samples we find five Greco-Etruscan M269, four Germanic U106 (incl. one L48), and one Celtic P312. The high proportion of M269 could indeed point to an Etruscan origin. Let's also note the 5% of Germanic R1b.
The sample size from
Pistoia (central northern Tuscany) is very small but fits just in between the two other Tuscan regions:
- 8 out of 13 samples are R1b (61.5%)
Among which 5 are U152 (38.5% of the total, or 62.5% of all R1b), 1 is M269, 1 is P312 and 1 is U106.
Amazingly the percentage of R1b-U152 is so-to-say identical in all three Tuscan regions, around 37-38% of all lineages.
This analysis supports the hypothesis that Italic people brought R1b-U152 to Italy.
Just a quick comparison with Umbria.
In
Foligno (central-east Umbria):
- 14 of 37 samples are R1b (38%)
- 9 of 37 samples are R1b-U152 (24.5%)
64% of all R1b in Foligno is U152.