Study-Sub-Saharan ancestry of the Italians

[Methusalem]

Abstract

According to archaeological records and historical documentation, Italy has been a melting point for populations of different geographical and ethnic matrices. Although Italy has been a favorite subject for numerous population genetic studies, genetic patterns have never been analyzed comprehensively, including uniparental and autosomal markers throughout the country.

Source:http://www.plosone.org/article/info:...e-0050794-g002


Autosomal ancestry in Italy

"...A panel of 52 AIMs was genotyped in 435 Italian individuals in order to estimate the proportion of ancestry from a three-way differentiation: sub-Saharan Africa, Europe and Asia. Structure analyses allowed us to infer membership proportions in population samples, and these proportions can be graphically displayed, as in Figure 2. This analysis indicated that Italians have a basal proportion of sub-Saharan ancestry that is higher (9.2%, on average) than other central or northern European populations (1.5%, on average). The amount of African ancestry in Italians is however more comparable to (but slightly higher than) the average in other Mediterranean countries (7.1%)."

Map showing the location of the samples analyzed in the present study and those collected from the literature.
Pie charts on the left display the distribution of mtDNA haplogroup frequencies, and those on the right the Y-chromosome haplogroup frequencies.




Haplogroup frequencies of Ladins, Grecani Salentini and Lucera compared to the rest of the Italian populations analyzed in the present study.
doi:10.1371/journal.pone.0050794.g004

[Smeagol]

This analysis indicated that Italians have a basal proportion of sub-Saharan ancestry that is higher (9.2%, on average) than other central or northern European populations (1.5%, on average). The amount of African ancestry in Italians is however more comparable to (but slightly higher than) the average in other Mediterranean countries (7.1%)."

I highly doubt that, and other studies contradict it.

Combined data from two large mtDNA studies provides an estimate of non-Caucasoid maternal ancestry in Italians. The first study sampled 411 Italians from all over the country and found five South Asian M and East Asian D sequences (1.2%) and eight sub-Saharan African L sequences (1.9%). The second study sampled 465 Sicilians and detected ten M sequences (2.2%) and three L sequences (0.65%). This makes a total of 3% non-white maternal admixture (1.3% Asian and 1.7% African), which is very low and typical for European populations, since Pliss et al. 2005, e.g., observed 1.8% Asian admixture in Poles and 1.2% African admixture in Germans.
(Plaza et al. 2003;
Romano et al. 2003)


Similar data from the Y-chromosome reveals Italians' even lower non-Caucasoid paternal admixture. Both studies obtained samples from all over the mainland and islands. No Asian DNA was detected anywhere, but a single sub-Saharan African E(xE3b) sequence was found in the first study's sample of 416 (0.2%), and six were observed in the second study's sample of 746 (0.8%). The total is therefore a minuscule 0.6%, which decreases to 0.4% if only Southern Italians are considered and 0% if only Sicilians are considered. Again, these are normal levels of admixture for European populations (e.g. Austrians were found to have 0.8% E(xE3b) by Brion et al. 2004).
(Semino et al. 2004;
Cruciani et al. 2004)


52 world populations, including three Italian samples, were typed for 993 autosomal polymorphisms and subjected to a clustering algorithm. In the resulting data (excerpted below), Orange, Blue and Pink represent Negroid, Caucasoid and Mongoloid clusters, respectively. Other colors denote Austro-Melanesian and Native American clusters (omitted). Notice that the Italian, Sardinian and Tuscan samples show the same near-total membership (>98%) in the Caucasoid cluster as the Basque, French and Scottish (Orcadian) samples.
(Rosenberg et al. 2005)

[Prince Carlo]

LOL this study is even more ludicrous than Moorjani et al.

[Loki]

Not true. By the way, you can't deduct autosomal percentages by looking at haplogroups alone.

[Anthropologique]

Not true. By the way, you can't deduct autosomal percentages by looking at haplogroups alone.

Yes. Actually haplogroups have very little significance. They can only provide clues on ancient migration patterns, and first ancestors. Autosomal DNA (full ancestry) is the biggest determinant of phenotype, followed by environmental assimilation and accommodation.

[Gaijin]

The Negroid ancestry of the Italians is a well known fact, that is often denied by the entities of this forum.
They also fail to provide any contradictory sources, that may aid their arguments.

Italians are indeed part Black, and this can be witnessed in their phenotype.

Saying "Not True", won't change the facts.
The study is Peer-Reviewed, which means it's true.

[Ianus]

The Negroid ancestry of the Italians is a well known fact, that is often denied by the entities of this forum.
They also fail to provide any contradictory sources, that may aid their arguments.

Italians are indeed part Black, and this can be witnessed in their phenotype.

Saying "Not True", won't change the facts.
The study is Peer-Reviewed, which means it's true.

Seems that 700 years of North African domination do this effects

[Peyrol]

The Negroid ancestry of the Italians is a well known fact, that is often denied by the entities of this forum.
They also fail to provide any contradictory sources, that may aid their arguments.

Italians are indeed part Black, and this can be witnessed in their phenotype.

Saying "Not True", won't change the facts.
The study is Peer-Reviewed, which means it's true.

Since your people aren't british like (since the ''atlantic facade'' is an anthrophora bullshits no way real), but almost identical to southern italians, you must be negro too.
Pictures of group of people:

































how many english...

[Gaston]

DNA-wise, Italians and Iberians are way more mongoloid than negroid, that's what people tend to forget. They are also less mongoloid than Northern Europeans thus more caucasoid than most Europeans.

[Peyrol]

DNA-wise, Italians and Iberians are way more mongoloid than negroid, that's what people tend to forget. They are also less mongoloid than Northern Europeans thus more caucasoid than most Europeans.

''West asian'' component in Italy and Iberia isn't ''mongoloid'', is middle eastern (mostly neolithic or jew-phoenician).