Here we go again. Sicilians are not black. Ancestors of Sicily were mostly European with some Arabic and Jewish sources:
http://www.bestofsicily.com/genetics.htm
Haplogroup M173, associated with the descendants of the first waves of humans into Europe (often seen as a branch of the Cro-Magnon haplogroup M343, or R1b), is widespread in Sicily and indeed across Europe, where many English (including some 70% of Englishmen in southern England) and French share it. Today it is most prevalent (90%) among the Spanish and Irish. M173 originated about 30,000 years ago. In effect, some 80% of western Europeans living today are in this haplogroup. Though the neolithic Proto-Sicanians were probably part of this haplogroup, many Sicilians more likely inherited it from ancestors descended from subsequent foreign conquerors arriving from the North and West --Sicels, Romans, Visigoths, Vandals, Normans, Lombards, Swabians (Germans), Angevins (French) and Spaniards among them -- but possibly from some Greeks as well. (These observations are only intended as generalities.)
In Sicily one of the most interesting haplogroups to geneticists is the much more recent M172 (also called J2), probably introduced about 8,000 BC with the introducton of agriculture to a native people sometimes referred to as the "Proto-Sicanians." At least 21% of Sicilians carry the marker for this haplotype (probably about 19% throughout Europe), and no more than 10% of people in regions such as Spain, but it is very frequent in the Middle East, Ethiopia and particularly the Caucasus region of west-central Asia (where it reaches 90%), and is present among some central-Europeans and north-Africans.
