Mesolithic Iberians

[Optimus]

That is a very low influence, 7-10% of whole Iberia.

It is not a low influence,Iberians score high on Med.The 7-10% comes from late Neolithic Bell Beaker folks.

[Prince Carlo]

That African admix is clearly North West African.

On low Ks NWA admix comes out as African.

[Kanuni]

Interesting.That means that back in Mesolithic times Europe both in South and North was populated by people who were genetically similar and carried mostly the Atlantic_Baltic component.Pretty logical to me.So we have first the Early Neolithics, the Proto-Meds coming from Middle East and spreading toward Southern Europe.Then we have two late Neolithic waves from Anatolia.One of them weird enough started from Southern Portugal with a maritime culture called Bell Beakers while the other one directly from Anatolia affecting genetically more the Balkans and Italy.

I am wondering about whether this Mesolithic people will fall to carry the Y-DNA I.

[Mordid]

boring, yawn..

[Pallantides]

http://eurogenes.blogspot.com.au/201...esolithic.html

Two Mesolithic skeletons from North-western Spain have been successfully tested for autosomal DNA, and compared to extant Europeans. The results, published in Current Biology, showed that they were outside the range of modern European genetic variation, but much more similar to modern Northern Europeans than to Iberians. Apparently, they were also closely related to Mesolithic hunter-gatherers from Northern and Central Europe. That's basically the angle that Science Now has taken in covering the story:

Although the first farmers spread quickly across Europe, trading and exchanging culture across thousands of kilometres, many researchers had assumed that Mesolithic nomadic hunter-gatherers lived in small, isolated bands with little contact over long distances. But the genetic picture, Lalueza-Fox says, suggests "highly mobile" groups that kept in touch and interbred continent-wide.

These are interesting outcomes, because modern North, Central and East Europeans produce a very strong “Northern European” cluster in ADMIXTURE analyses. This cluster usually peaks in Baltic-speaking groups, like Lithuanians, and is difficult to break down (see here). Also, it correlates very well with clusters that peaked in Swedish hunter-gatherers analysed recently by Skoglund et al. (see here). As a result, I have no doubt that this modern ADMIXTURE cluster is largely of Mesolithic hunter-gatherer origin, and its widespread range in Europe today is at least partly due to the fact that hunter-gatherers from across Europe were very similar genetically.

In this study, the ancient DNA wasn’t compared to Lithuanian samples, which is a shame. Instead, the authors used data from the 1000 Genomes Project, which includes Finns. However, they oversampled the Finns when running their intra-European PCAs. This showed clearly that Finns were different from other Europeans, largely due to fairly recent factors like founder effect and drift, but provided very little information about the hunter gatherers.

[Damião de Góis]

Update from Dienekes blog:

UPDATE II: Using the K12b, the results are: 45% Atlantic_Med, 41.6% North_European, 10.3% East_African, 1% Sub_Saharan.

My own K12b:



The conclusion was a sharp difference from modern iberians, but to be honest the main differences are the lack of Caucasus and Gedrosia.

[Prince Carlo]

Atlantic med includes Atlantic alleles.

[Pallantides]

Mesolithic Iberians/Spanish_D

Gedrosia 0%/6.2%(-6.2%)
Siberian 0%/0%
Northwest_African 0%/5.1%(-5.1%)
Southeast_Asian 0%/0%
Atlantic_Med 45%/52.5%(-7,5%)
North_European 41.6%/22.7%(+18.9%)
South_Asian 0%/0.2%(-0.2%)
East_African 10.3%/0%(+10.3%)
Southwest_Asian 0%/4%(-4%)
East_Asian 0%/0%
Caucasus 0%/8.8%(-8.8%)
Sub_Saharan 1%/0.4%(+0.6%)


Mesolithic Iberians/Portuguese_D

Gedrosia 0%/6%(-6%)
Siberian 0%/0%
Northwest_African 0%/7.7%(-7.7%)
Southeast_Asian 0%/0%
Atlantic_Med 45%/47.5%(-2.5%)
North_European 41.6%/22.3%(+19.3%)
South_Asian 0%/0.9%(-0.9%)
East_African 10.3%/0.1%(+10.2%)
Southwest_Asian 0%/5%(-5%)
East_Asian 0%/0%
Caucasus 0%/9.7%(-9.7%)
Sub_Saharan 1%/0.7%(+0.3%)


Mesolithic Iberians/Norwegian_D

Gedrosia 0%/8.2%(-8.2%)
Siberian 0%/1%(-1%)
Northwest_African 0%/0%
Southeast_Asian 0%/0%
Atlantic_Med 45%/36%(+9%)
North_European 41.6%/54.7%(-13.1%)
South_Asian 0%/0%
East_African 10.3%/0%(+10.3%)
Southwest_Asian 0%/0%
East_Asian 0%/0%
Caucasus 0%/0.1%(-0.1%)
Sub_Saharan 1%/0%(+1%)

[Kanuni]

So Mesolithic Iberians had the Atlantic_Med component afterall.Would the E1b1b subclades explain the EastAfrican admixture there?

[gold_fenix]

E1b1b doen't have meaning where is highest in Spain (Gallicia) too there is a group of isolated people in Spain where is highest with a high often of R1a when in Spain is very low.
I see each day more complex things in these results, in any case the genome decripted in these rests are under of 2%