A question related to genetics and history

[Insuperable]

The question is "When did it start arriving in Europe, who brought it or which culture brought SWA comp. into Europe?"

Otzi, a 5300 years old "Tyrolean" had a substantial amount, close to certain southern Europeans. While one might think it came with those who were pred. Med (as in gen. comp.) that may not be so since Basques are like half Med and don't score any SWA.

[Vesuvian Sky]

few things to keep in mind here:

1) med component is broadly defined. there's clearly a pre-agricultural Euro Med component aka 'West Med.' AND an agricultural Med component aka the East Med.

2) Along with the East Med. component, came some West Asian and even SWA. This was probably the genetic legacy of the Cardial Ware Horizon which made Oetzi what he is.

3) We don't have any autosomal aDNA from the LBK yet. However, it has been speculated already that they primarily would have been West Asian in character:

http://eurogenes.blogspot.com/2013/04/ecological-constraints-on-europes-first.html

There was probably SWA DNA as well to LBK farmers. LBK farmers do not make it into Iberia however. Check this map out:

http://upload.wikimedia.org/wikipedia/commons/0/02/European-middle-neolithic-en.svg

Neolithic-ization of Iberia follows a different process as described below.

4) Iberian archaeologists usually interpret the Neolithic-ization of Iberia to reflect in mass a process of acculturation:

http://www.academia.edu/673004/Early_Neolithic_agriculture_in_the_Iberian_peninsu la

genetics backs this up more or less it seems. Hence, why the Basque aren't exactly like Oetzi.