New phylogenetic tree of R1b-U152 (and L2)

[Maciamo]

I have been working for three days on a new updated version of the R1b-U152 tree. I had to split it in two trees as the L2 branch was taking too much space. I recommend that you viw the tree in full screen by clicking on them on the R1b page.

I had already suggested three years ago that Z56 was a predominantly Italic branch and therefore associated with the Romans too, while the Z36 subclade was Alpine Celtic, and associated especially with the La Tène culture and Iron Age Gauls. This new phylogeny confirms just that. Z56 is overwhelmingly present in Italy, while Z36 is the most common subclade in and around Switzerland and southern Germany. The other branches, including L2, appear to have scattered around Europe from the time U152 reached central Europe (circa 2500 BCE). Some branches may have diffused with the Unetice, Tumulus and Urnfield cultures.

[geiserich]

I`m interested in the Z194 branch, below Z193 and Z192. I think it may be a Roman subclade, but there is the possibility of an origin north of the Alps. What do you think?

[Maciamo]

I`m interested in the Z194 branch, below Z193 and Z192. I think it may be a Roman subclade, but there is the possibility of an origin north of the Alps. What do you think?

Z192 is well represented in Italy and might be Italic/Roman, but data is still too scarce to tell.

When at look at the age of Z193 and Z192 (both 4400 ybp), it is too old to be exclusively Italic. It might be some deeper clades that are Italic. For example, based on the FTDNA data, the BY3630 under Z40483 is found only in central Italy (Rome and Naples). Oddly, it's not listed in Yfull nor on the Big Tree, but the latter lists the CTS2617 subclade which might be equivalent and is also found in Italy.

PF6652/Z194 might possibly also be Roman.

[Robotnick]

Never mind

[kuzmosi]

Dear Maciamo!

My paternal grandmother's father as R1b-U152-L2-Z49-S8172. They lived all in Northeast Hungary.

Can we know something about this subclade? Z56 was italicus, Z36 was italic celt, and what is the situation with my ancestors? Thank you.

[kuzmosi]

Z36 was italic celt,

sorry: Z35 was alpine celt

[kuzmosi]

sorry again: Z36 was alpine celtic

[roberto1960]

I am R-U152 R-Z43 Pf6571 from italy tuscany

[Jovialis]

I am R-U152 R-Z43 Pf6571 from italy tuscany

How about reserving this for the information on the left-hand side, or elaborate in your signature; because this is nearly all you post. Then you could have something different to write about.

[Norditaliano]

I'm R-L671 but I don't see it in the tree.

[florere]

Is this the last phylogenetic tree? I'm R-L2

[Ahmed]

I am R-Z193/PF6658 but from Egypt. I could have a Roman's root.

[t50]

Claiming that L2 is "scattered around Europe" seems like a bit of a poor generalization. As discussed elsewhere, Boattini2013 shows that most of northern Italy is 10%-12% L2, with L2 being the dominant haplogroup of that area; so L2 definitely has a very strong Italian presence. Further, the FTDNA BlockTree, with its strong UK bias, shows that over 60% of their U152 participants are L2 (3690 of 5931 participants on 4/19/20); so if we want to have their data be part of the discussion, we really need to break L2 into useful subclades, including the major Italian element.

Where L2 is only a single mutation from U152 and many of these early branches have many children that are likewise only a single variant away, there is a good chance that U152 and L2 were largely contemporary, and part of a period of significant population expansion for that haplogroup. If a line has 1 male child per generation for 8 generations (urban population growth), then we are likely to see many years per mutation; but if a line has 4-6 male children per generation (rural population growth), we are going to be seeing lots of semi-contemporary mutations.

With extreme branching, like we see with U152, L2, Z36 and PF6658, we might anticipate many of these lines to be contemporary. In such a scenario, we might imagine a large clan of these mixed branches migrate into northern Italy as a group, with Z56 just representing one part of that group. There seem to be many founding legends that speak of large clans or groups of people settling new colonies in mass, and though these stories come from the historical period, some of the behaviors seen in Bronze Age haplogroups might suggest a similar strategy during that era.

[Maciamo]

Claiming that L2 is "scattered around Europe" seems like a bit of a poor generalization. As discussed elsewhere, Boattini2013 shows that most of northern Italy is 10%-12% L2, with L2 being the dominant haplogroup of that area; so L2 definitely has a very strong Italian presence. Further, the FTDNA BlockTree, with its strong UK bias, shows that over 60% of their U152 participants are L2 (3690 of 5931 participants on 4/19/20); so if we want to have their data be part of the discussion, we really need to break L2 into useful subclades, including the major Italian element.

Where L2 is only a single mutation from U152 and many of these early branches have many children that are likewise only a single variant away, there is a good chance that U152 and L2 were largely contemporary, and part of a period of significant population expansion for that haplogroup. If a line has 1 male child per generation for 8 generations (urban population growth), then we are likely to see many years per mutation; but if a line has 4-6 male children per generation (rural population growth), we are going to be seeing lots of semi-contemporary mutations.

With extreme branching, like we see with U152, L2, Z36 and PF6658, we might anticipate many of these lines to be contemporary. In such a scenario, we might imagine a large clan of these mixed branches migrate into northern Italy as a group, with Z56 just representing one part of that group. There seem to be many founding legends that speak of large clans or groups of people settling new colonies in mass, and though these stories come from the historical period, some of the behaviors seen in Bronze Age haplogroups might suggest a similar strategy during that era.

First of all, this thread is 3 years old.

Secondly, I wrote "it appears that "L2 appears to have scattered around Europe from the time U152 reached central Europe (circa 2500 BCE)". I am not talking about its present distribution, but how it dispersed after arriving in Central Europe 4500 years ago. I should have said "Western Europe".

[t50]

My point is that talking about L2 independent of U152 does not make a lot of sense as the two are likely near contemporary, have very similar distributions, and the former makes up an extremely large percentage of the latter. In some of your other posts you specifically mention their very similar geographic distributions, such as "L2+ and L2- are found in about the same proportion everywhere", which was from a 2010 post of yours. I think if you will reread my post you will find that it has merit. I am not seeking to argue with you. I definitely defer to your abundant experience, and seek only insight from you and to contribute to the wonderful resource you have created.