Ethnic groups that are lighter/darker than their ancestry would suggest

[Hoihey]

Ethnic groups that through genetic drift, founder effect, inbreeding, or natural selection are pigmented differently than what you’d expect of somebody of their ancestry.

DARKER

Melanesians from Bougainville



LIGHTER
Ashkenazi Jews despite being half near eastern and ~40% Southern European are noticeable lighter than both ethnic groups

[Tooting Carmen]

Brits are darker in hair and possibly eyes than other Europeans of a similar latitude. Iranians are relatively light when compared to many of their neighbours.

[Hoihey]

Brits are darker in hair and possibly eyes than other Europeans of a similar latitude. Iranians are relatively light when compared to many of their neighbours.

Brits are super pale and sunburn easily, and plenty of them have light hair

[Tooting Carmen]

Brits are super pale and sunburn easily, and plenty of them have light hair

They're much darker-haired than Scandinavians and also darker-haired than most Dutch and Germans (except Bavarians).

[Hoihey]

DARKER
Cobra Gypsies from Rajasthan, darker than most Tamils yet their origins are from NW india. Interestingly they also have a higher rate of lighter eyes than their neighbors

[Hoihey]

LIGHTER
Nuristani people are noticeably lighter than their neighbors despite being part of the same iranic ethnic group

[gixajo]

Ethnic groups that through genetic drift, founder effect, inbreeding, or natural selection are pigmented differently than what you’d expect of somebody of their ancestry.


Ashkenazi Jews despite being half near eastern and ~40% Southern European are noticeable lighter than both ethnic groups

]

But Ashkenazim also have quite admixture from Central and North Europe.

And Ashkenazim are not all of them lighter than Italians, Ashkenazim are a very diverse group of people which has at least as much variety of phenotypes, and as different as can be Italians.

I don't know if that Italian mix of the Ashkenazim is real, or just that their genetic mix between Northern Europe and the Levant, preferentially models them as Italians, without having contributions from that area.

Let's see if any expert can clarify this last point for me, because I do not understand how people who have lived for centuries in Germany, Russia or in Baltic countries, have a 40-50% Italian in those results.

I can undertstand that a Moroccan Jew is practically 50% Iberian, but....50% Italian a Ashkenazi from Russia? Most of Shephardim lived during centuries in the Iberian peninsula before also because of the Roman Empire , before being expelled, but they don´t score any Italian. Why that difference?

[gixajo]

Letting the imagination fly , if the Ashkenazim stopped being modeled preferably as Italians, Germans, Baltics, Russians, Poles and practically all those from North and Central Europe, with a genetic relationship with Slavs and/or Germans (even English and Scandinavians!) they would begin to score much more than that they do regularly in Ashkenazi, and that would be terrible.

[Abriekman]

But Ashkenazim also have quite admixture from Central and North Europe.

And Ashkenazim are not all of them lighter than Italians, Ashkenazim are a very diverse group of people which has at least as much variety of phenotypes, and as different as can be Italians.

I don't know if that Italian mix of the Ashkenazim is real, or just that their genetic mix between Northern Europe and the Levant, preferentially models them as Italians, without having contributions from that area.

Let's see if any expert can clarify this last point for me, because I do not understand how people who have lived for centuries in Germany, Russia or in Baltic countries, have a 40-50% Italian in those results.

I can undertstand that a Moroccan Jew is practically 50% Iberian, but....50% Italian a Ashkenazi from Russia? Most of Shephardim lived during centuries in the Iberian peninsula before also because of the Roman Empire , before being expelled, but they don´t score any Italian. Why that difference?

I also thought about it, that Ashkenazi Jews can be just mix of Northern Europeans and Levantines, but if we go by Gedmatch calculators their North Atlantic score is the same as Italian, Sephardic and North African Jews have. Baltic score is only higher, which represents Slavic admixture. They are modelled as 90% Italian Jewish + 10% Eastern European on all these calculators. Approximately 55% from Levantines, 35% from ancient Romans and 10% from Slavs

[gixajo]

I also thought about it, that Ashkenazi Jews can be just mix of Northern Europeans and Levantines, but if we go by Gedmatch calculators their North Atlantic score is the same as Italian, Sephardic and North African Jews have. Baltic score is only higher, which represents Slavic admixture. They are modelled as 90% Italian Jewish + 10% Eastern European on all these calculators. Approximately 55% from Levantines, 35% from ancient Romans and 10% from Slavs

But Gedmatch is an Admixtool to modellate people basing that modelling in few components, based in a SNPs lecture,(reading?) but not directly a SNPs assigned to ethnicities lecture(reading?).

So Admixture tools don´t give a real result, but several different ways in which a individual is modelled through some coordinates.

Do Ashkenazim score 40-50% Italian in ethnic estimates from commercial companies that give estimates throug directly assigned SNPs or "chunks" of similar SNPs concatenated too?