Greek Y-DNA haplogroups (regional breakdown)

[Peterski]

Table with Y-DNA frequencies by region and two main haplogroups in each sample:



And PCA graph with convex hulls (there are two main clusters) and loadings biplot:

http://i.imgur.com/pbbyzjo.png



Map of clustering and main haplogroups by region (based on data table and on PCA):

[Peterski]

What do you think about it, does it make sense?

[davai]

nice work.

[Linebacker]

The I(I2) in the north must be from the Bulgarian minorities living around the northern borther.

Maybe even some Fyromians.

[catgeorge]

Nice little compilation.
But R1a frequencies are a little too exaggerated
According to the below

https://en.wikipedia.org/wiki/List_o..._by_population
http://www.nature.com/ejhg/journal/v...g2008249a.html

[Peterski]

Nice little compilation.
But R1a frequencies are a little too exaggerated
According to the below

https://en.wikipedia.org/wiki/List_o..._by_population
http://www.nature.com/ejhg/journal/v...g2008249a.html

According to that study 15 out of 92 Greeks had R1a, so 16,3%.

In my sample, there are 125 with R1a among 1032 - so 12,1%.

In my sample R1a is rather underrepresented, not exaggerated.

================================

Here is a map with regional frequencies of R1a in my samples:

http://i.imgur.com/2QMprx2.png

[Danaan]

Some of the regions are irrelevant (like Nea Nikomedeia, Lerna/Franctini, Sesklo/Dimini) because they have small population and it's not sane to assume that the population remained the same since Neolithic.

E1b1b in Patras seems too high. I think the same about R1a in Thessaloniki. If another study provided similar results I would accept it.

40% of the population lives in Attica, so that samples are probably quite representative of what modern Greeks are.

These studies are very old and there is no information on the subclades quite often.

In Lasithi the main haplogroup is J2a. You shouldn't combine the data for 'Lasithi plateau' with those of Lasithi perfecture. Lasithi plateau has 2,387 inhabitants and there's a founder effect there. Lasithi prefecture has 75,381 inhabitants.

Then the table isn't entirely accurate because there are more than two haplogroups in the second place in some regions.

[Peterski]

Danaan,

there are more than two haplogroups in the second place in some regions.

When I have 20% of E and 20% of I in a sample, then E is the 2nd one.

Because I includes both I2 and I1, while practically all of E is E1b.

I have I as one thing, because I couldn't find breakdowns for I2 and I1.

But in fact I = two haplogroups, I2 and I1. Not one like in case of E.

Attached Images
File Type: png Greek YDNA Samples.png (71.9 KB, 0 views)

Please do not re-upload my table, edit your post and remove it, OK ???

[Danaan]

No.

[Peterski]

It is my table = I own the copyrights. So remove it.

I can ask a moderator to remove your post anyway.

In Lasithi the main haplogroup is J2a.

Maybe but do you have sources to support this claim?

E1b1b in Patras seems too high.

Maybe, but there is still this dvisiion for J2-dominated regions and E1b-dominated regions.

What do you think is the origin of this division?