Are Eastern European more inbred than Western Europeans?

[Blondie]

Eastern Europe is full of Muslims as well. Especially Russia. This is not something that only Western Europe will deal with.

In case of Ukraine, Russia is much bigger threat for their independence.

Russian muslims live only in speacial regions (Caucasus, Central Asia), not everywhere and there is a big difference between central asian and arabic islam. The first one is not really religious unlike arabs.

[Methuselah]

Russian muslims live only in speacial regions (Caucasus, Central Asia), not everywhere and there is a big difference between central asian and arabic islam. The first one is not really religious unlike arabs.

I don't want to demonize Central Asians by any means but Muslims live all over the Russian land and not all of them are mentally sane or have good will.

https://www.bbc.com/news/world-europe-35685981

[Peterski]

I don't think so, at least not based on Western and Eastern member results in this thread:

https://www.theapricity.com/forum/sh...inbred-are-you - "How inbred are you?" thread

[Grace O'Malley]

I remember reading this study a few years ago.

People who live closer together tend to be more closely related, as you'd expect. The survey also found that the degree of relatedness varied among present-day European populations: Italians tended to have lower levels of relatedness, to each other and to other Europeans. That may be because there was a long history of distinct cultures in that region, the researchers suggest. Eastern Europeans, in contrast, showed more relatedness than the average, perhaps due to the Slavic expansion into that region more than 1,000 years ago.

https://www.nbcnews.com/sciencemain/...st-1-6C9826523

Here's the study if anyone wants to read further.

https://journals.plos.org/plosbiolog...l.pbio.1001555

[Peterski]

I remember reading this study a few years ago.

Yeah, there was large-scale mixing of migrating groups across East Europe 1500 years ago.

Quite the opposite of inbreeding. More like the situation in Latin America after Columbus.

Italians tended to have lower levels of relatedness, to each other and to other Europeans. That may be because there was a long history of distinct cultures in that region, the researchers suggest.

Yeah not being related to people from neighbouring valleys means that "everything stays in your valley".

[Peterski]

(...)

Are you Finnish shlömö? Finns are indeed inbred, that's why they suffer from many genetic disorders:

https://en.wikipedia.org/wiki/Finnish_heritage_disease

https://www.gaucherdisease.org/blog/...etic-diseases/

Similar situation is with Ashkenazi Jews. But this does not apply to other East Europeans e.g. Slavs.

[Grace O'Malley]

Yeah, there was large-scale mixing of migrating groups across East Europe 1500 years ago.

Quite the opposite of inbreeding. More like the situation in Latin America after Columbus.



Yeah not being related to people from neighbouring valleys means that "everything stays in your valley".

It still shows that the population is more related so you share more genetic material. They will have larger strands of IBD for example.

For example, we find that Italians are more distantly related to each other, than individuals in most other regions of Europe. We think that this reflects larger and more stable population sizes, perhaps drawn from a larger geographic area, over the past 2000 years.

We also see that people in Western Europe are somewhat less related to each other than are people in Eastern Europe. Two people from across Eastern Europe share more ancestors with each other, than is typically seen even within a Western European country. This higher rate of shared ancestry seems to come from ancestors living 1,000-2,000 years ago. We think this may reflect the expansion of various groups of people (perhaps the Slavs) in Eastern Europe during the migration period of European history. But this is just a hypothesis, there are other (non-mutually exclusive) explanations.

It's not something to be sensitive about. From what I've read it is due to the relatively recent Slavic expansion.

[Peterski]

It still shows that the population is more related so you share more genetic material. They will have larger strands of IBD for example.

We are more related as a whole (across Eastern Europe), not within valleys.

Just like people from Mexico share a lot of IBD with people from Argentina.

[Peterski]

It's not something to be sensitive about. From what I've read it is due to the relatively recent Slavic expansion.

What does it have to do with inbreeding? Spanish expansion in Latin America was similar to Slavic expansion across Europe.

Does it mean that Latin Americans are inbred because of being related to each other through their recent Spanish ancestry?

The only inbred groups in Eastern Europe are Finns and Ashkenazi Jews. There is a similar situation with French Canadians.

[Peterski]

For example, we find that Italians are more distantly related to each other, than individuals in most other regions of Europe. We think that this reflects larger and more stable population sizes, perhaps drawn from a larger geographic area, over the past 2000 years.

It does not have to be about larger population sizes, also about very limited mobility of people.

I found many Italians on GEDmatch with GEDCOMs showing for example 8 great-grandparents from the same city.

We also see that people in Western Europe are somewhat less related to each other than are people in Eastern Europe. Two people from across Eastern Europe share more ancestors with each other, than is typically seen even within a Western European country. This higher rate of shared ancestry seems to come from ancestors living 1,000-2,000 years ago. We think this may reflect the expansion of various groups of people (perhaps the Slavs) in Eastern Europe during the migration period of European history. But this is just a hypothesis, there are other (non-mutually exclusive) explanations.

Me sharing many ancestors with some Czech, Croatian or Serbian person - what does it have to do with inbreeding?

I would be more worried if I shared a lot of ancestors with everyone living in the same place as me. And the latter is what you get in Italy (people in the same town share ancestors, but they don't share ancestors with people from another region of Italy).