In Sicily J2 is most common owning 28% of men. R1b is just behind with 25% and E3b is also at about 25%. In southern Italy its about 25-30% R1b 25% J2 and 20-25% E3b, these are by far the most common with another 20% split between a wide assortment of rarer and less dominant haplogroups in this area. J2 originated near southern turkey/ northern Syria / northwestern Iraq. Look it up on Wikipedia to see which countries have the highest j2 frequencies there is an extensive list, turkey, Lebanon, Armenia, northern Iraq, northwestern Iran, Georgia, Greece ( 20%) the greek island of Crete has high frequencies, southern Italy, Sicily. R1b is "Celtic". Highest frequencies in Ireland, England, Scotland, France, holland, Belgium, Spain and Portugal ( Iberia is a lot less "antonio banderas" Mediterranean than most genetic amateurs may think it fits in just right with pale Germanic R1b people's), Germany, Switzerland, north Italy etc. E3b is found in non-negroid North Africans such as Egyptians, Libyans, Tunisians, Algerians, Moroccans. The most common in Sicily would be J2 but R1b is very close behind and E3b right after. What we can deduce from this is that the J2 represents Fertile Crescent-Mesopotamian-middle eastern genetic influx, R1b represents Western European Germanic "Celtic" blood and E3b represents strictly north-African blood of a non-black type. Southern mainland Italy has a similar distribution but less J2 more 25% instead of 30% and R1b is about 25-30%, e3b is 20-25%. In other words the genetic structure of southern Italy + Sicily has a more equal distribution between these 3 haplogroups, thus pointing to more middle eastern/north African lineages in these regions. Central Italy has 40-45% R1b , 20% J2 and 10% E3b so there is much more white man "Celtic" blood and about the same/slightly less middle eastern blood with the E3b being about half that in southern Italy/Sicily ( now 10% in central.). The north is 55-60% R1b so more than half of the men are Celtic. There is 10% of both J2 and E3b in the north making both lineages rare on their own, but making the total of Neolithic blood at about 20% of north italian men (combined). Whereas the Neolithic of "foreign" element that arrived much later than the R1b men is at about 50% of south italian males, making southern Italy a genetic "isolate" compared to other nearby west European etc. areas and even compared to north Italy which clusters much closer with Swiss, French, German men etc.