ITALIANS
It is often claimed that Italians, especially those from the South of the country, have substantial Middle Eastern and African admixture acquired during Roman times and the Moorish occupation. However, data from anthropology shows a prehistoric origin for the Mediterranean elements in Italy, and detects no Negroid influence there whatsoever. Genetic research confirms this, showing that both sub-Saharan and Arab-Berber admixture are negligible. The differences between Northern and Southern Italians have also been greatly exaggerated for political reasons.
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Anthropology
Italy, one of the most clearly demarcated geographical units in Europe, is a country of considerable [sub]racial variability. Although the Mediterranean race is strongly represented in it, Italy belongs only partially to the Mediterranean world, for much of it is more typically Alpine racial territory. ... The primary racial impulse of the early Neolithic, however, is known. This was the immigration of small Mediterraneans in great numbers, coming largely if not entirely by sea; these first food-producers were followed by more competent navigators, Atlanto-Mediterraneans, who settled chiefly in the north and in the islands, and Dinarics from the eastern Mediterranean in search of metal. Some of the Dinarics penetrated the Alpine Valleys while others settled in the Po Valley and in central Italy. The movement of highly cultured peoples from the east into Italy continued into historic times, and included the settlement of the Etruscans in Tuscany, and of the Greeks in Sicily and in the southern end of the peninsula.
...through her role as mistress of the world, Rome accumulated and assimilated a heterogeneous population. That this population was by no means purely or even predominantly Mediterranean is shown by the study of the skulls of Pompeians, victims of the eruption which turned their city from a metropolis into a museum. These crania, with a mean cranial index of 80, represent a population which had acquired a [sub]racial character of its own despite its mixed origin, and in which the Alpine element was the most important. ... A series of 100 modern crania from Bologna, with a mean cranial index of 83.5, is almost purely Alpo-Dinaric, with the latter element in a position of prominence. The Dinaric race is common in northern, but not southern Italy, and this distinction has been true since the Bronze Age.
In other words, the southern Italians are a blend for the most part of Alpines and small Mediterraneans, while among the northern Italians the most important dolichocephalic strain is the Atlanto-Mediterranean. The association of relatively great blondism with brachycephaly merely indicates that both Alpines and Dinarics are characteristically mixed or intermediate in pigmentation. The few unaltered Nordics still found in northern Italy and in aristocratic families elsewhere are far outnumbered by Atlanto-Mediterraneans. ... The binding element which is common to all sections is the Alpine, which has reemerged from obscure beginnings through a superstructure composed of Dinaric, Nordic, and various kinds of Mediterranean accretions.
(Carleton S. Coon, The Races of Europe)
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Genetics
In a sample of 302 Italians from Tuscany, Rome, Sicily and Sardinia, 5 sub-Saharan mtDNA markers and 2 Asian-specific markers were detected. Note that most of these were found in Sardinians, who are a small, isolated population subject to genetic drift. Still, from these figures the non-Caucasoid maternal contribution to the Italian gene pool can be estimated at 2.3%, or ~1.2% total (0.8% African and 0.4% Asian).
(Richards et al., Am J Hum Genet, 2000)
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In a sample of 465 Sicilians from all over the island, 10 mtDNA haplogroup M sequences of presumable proto-Asian origin were detected, while only 3 sub-Saharan L sequences were found, bringing the total non-Caucasoid maternal admixture in Sicily to 2.8%, with just 0.65% of this being Negroid (Note that Richards et al. 1998 found white Britons to have 1% black mtDNA). To date, no sub-Saharan Y-chromosomes have been discovered in Sicily.
(Romano et al., Ann Hum Genet, 2003)
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[I]n Italy...the frequency of [North African] U6 is much lower than in Iberia (one out of 411 individuals), and...none of the eight L sequences [=1.9% black mtDNA] has been found in NW Africa. Three Italian L sequences have been described throughout Africa, and the remaining five are not found in >1,000 sub-Saharan individuals. Thus, the presence of L sequences cannot be attributed to migration from NW Africa, and may instead represent gene flow from other sources, such as the Neolithic expansion or the Roman slave trade.
(Plaza et al., Ann Hum Genet, 2003)
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In a sample of 524 Italians from all over the mainland, no sub-Saharan Y-chromosome markers were detected. Note that a previous study (Rosser et al. 2000) turned up a single African HG8 sequence, once again in Sardinia, which, in addition to the problem mentioned above, had an inadequately small sample of 10 (the 99 mainland Italians were HG8-free). Nonetheless, both of these results taken together give Italians a minuscule 0.16% African paternal admixture.
(Di Giacomo et al., Mol Phyl Evol, 2003)
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Two subclades of North African Y-chromosome haplogroup E (labeled E-M81 and E-M78â) have been given an estimated age of ~5000 years, making them useful in detecting historical admixture from Berbers. These markers exist at combined frequencies of 1.5% in Northern Italians, 2.2% in Central Italians, 0% in Southern Italians, 1.4% in Sardinians and 1.4% in Sicilians, suggesting that gene flow from Carthaginian and Moorish colonists was minimal.
(Cruciani et al., Am J Hum Genet, 2004)
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Another Y-chromosome marker that may have been spread to Europe by Phoenicians and Arabs is the subclade of haplogroup J labeled J*(xJ2) or Eu10. It originated in the southern part of the Fertile Crescent and is very common in Arabia and Palestine (Neolithic Eu9 is from the northern Fertile Crescent). Its frequencies are 0.9% in Northern Italy, 7.1% in Central Italy and 5.3% in Southern Italy (for a total of between 0.5% and 3.6% admixture). It's important to note that while Phoenician and Arab colonists undoubtedly carried Eu10, its expansion is dated to ~9000-6400 YBP and generally attributed to Neolithic migrations (Nebel et al. 2001). Therefore, levels of recent admixture may be even lower.
(Di Giacomo et al., Mol Phyl Evol, 2003)
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An analysis of 10 autosomal allele frequencies in Southern Europeans (including Italians, Sicilians and Sardinians) and various Middle Eastern/North African populations revealed a "line of sharp genetic change [that] runs from Gibraltar to Lebanon," which has divided the Mediterranean into distinct northern and southern clusters since at least the Neolithic period. The authors conclude that "gene flow [across the sea] was more the exception than the rule," attributing this result to "a joint product of initial geographic isolation and successive cultural divergence, leading to the origin of cultural barriers to population admixture."
(Simoni et al., Hum Biol, 1999)
Italians share the same ancestry for the most part: Paleolithic, Neolithic and Italic with minor Germanic influences, and even smaller recent non-European ones. But there are two significant differences that account for most genetic as well as phenotypic variation between Northern and Southern Italy, and they have no connection to Roman times or subsequent events.
1) The North has an Ancient Celtic component, while the South has an Ancient Greek one:
http://www.angeltowns.com/members/ra...ltic_North.jpg
http://www.angeltowns.com/members/ra...reek_South.jpg
2) Neolithic Mediterranean ancestry is slightly higher in the South:
http://www.angeltowns.com/members/ra...c_Ancestry.jpg
Overall, however, physical differences are negligible:
TRAIT NORTH SOUTH
Hair Blondism 15% 6%*
Eye Blondism 65% 56%
Brunet Skin ~50% >50%
Average Height 168 cm 165 cm
Cephalic Index ** 83.5 79
* Varying degrees of rufosity were observed in an additional 16% of this sample.
** Above 81 is in the Alpine-Dinaric range, and below 76 in the Mediterranean range.
(Coon, The Races of Europe)
http://www.angeltowns.com/members/ra.../italians.html




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