If you think you're going to be able to slip in some off topic discussion about relative North African ancestry in Italy versus Iberia so you can get your ridiculous anthrofora war between racist Italians and Spaniards going on this thread, think again. Any such further posts
by anyone will be deleted and there will be other consequences as well.
As for "L", it has a tiny presence in Italy, and anyway, it's most likely Neolithic. That looks very much like a Cardial spread. "JI" in Italy, as discussed extensively on this Board, is not divided very well into subclades. Only part of it can be attributed to the "Arabic" and "Moorish" type. As has been explained before, a lot of it seems to cluster in refugial mountain zones that also harbor G2a, indicating an early arrival for a good part of it. The E-M81 figures for central and northern Italy are based on studies with extremely small sample sizes, unlike the case in southern Italy or Sicily. The E-M81 percentage for Emilia is based, for example, on one or two samples.
Perhaps you should spend some time using the search engine here and acquainting yourself with these matters. It's a much more productive use of one's time, in my opinion, than posting endless pictures of Italians and Iberians in some effort to
"prove
" who is "darker". Just a friendly suggestion.
In terms of U6, I would recommend that you read the excellent recent paper on it so you can get an actual scientific analysis of the complicated story of the source of U6 in southern Europe.
http://www.biomedcentral.com/1471-2148/14/109
Of course, over and above all of that, there's been southern Italian immigration to the center and north since the late 1800's. I often wonder if the four grandparent rule as applied to samples taken in the late 20th and early 21st century is enough to screen all that out.
Regardless, yDna markers are subject to founder effect and sometimes have quite a limited correlation with autosomal make up, as anyone who has spent some time reading and researching these topics should know.
As for signs of Saracen and Moorish influence in southern Italy, other than in cases of attested rule in certain areas, you might want to investigate, as a Neapolitan, the Saracen presence in Salerno. Not that I'm one of those people who thinks that a few thousand troops are going to change the autosomal composition of any people, as I alluded to in the above paragraph. In terms of yDna there might be some influence, however.
As to North African autosomal signatures, I have yet to see any significant percentages in Tuscans in admixture analyses. At 23andme I've never seen a single one score it at all. As I'm sure you're aware, that is not the case for Sicilians and some southern Italians. It's in very minor percentages, of course. (Tuscans and northern Italians, .7 versus 4.1 for Sicilians.)
https://docs.google.com/spreadsheet...HB00SRE5L6ED2osPs9M/edit?hl=en_US&pli=1#gid=0