What i thought is that this haplogroup entered Iberia from north Africa and moved eastward,along Mediterranean,rather different hypothesis.Still i can make this hypothesis as long we don't find it's presence in the Adriatic or Greece for example in early stage or earlier than as found in Iberia if they went this route.The case could be similar with R1b V88 because we found it in Africa,likewise E is most frequent in north Africa.Milan, I didn't say that this branch of "E" was "responsible" for Cardial, but, as a sample related to E-M13 was found in that Cardial site in Spain, the most parsimonious explanation is that it moved to western Europe along the northern Mediterranean with Cardial groups, which themselves came from the Near East. We have no similar proof that it moved along the southern Mediterranean coast and then into Spain. If you had a pre-E-V13 sample from North Africa, from a culture that shows movement into Spain, that would be a different thing.
As for Lengyel, it is an outgrowth of the Balkan cultures to its south, which themselves stem from the Near Eastern Neolithic, and would have reached the Lengyel area through the Balkans. Again, nothing to do with North Africa. It was accompanied by J2.
For example this is about Cardial
Also i think that culture can influence another culture without much genetic change,but rather groups adopting their way of life.So the first Cardial settlers in the Adriatic may have come directly from the Levant. Of course it might equally well have come directly from North Africa, and impressed-pottery also appears in Egypt. Along the East Mediterranean coast Impressed Ware has been found in North Syria, Palestine and Lebanon