Regional and National Brazilian European Estimation

[Argentano]

Using this relatively new study with good amount of markers and around 3.000 samples and the census information

https://www.nature.com/articles/srep09812







Would like to hear the opinion of Brazilian users

[Argentano]

Maybe the Salvador sample is not the best for the northeast, but there is one study in Fortaleza with very similar results.

Still, i increased the northern white euro %

[JMack]

The two things this study shows is that Brazilians suck in self-identification issues and that SSA ancestry shows more than Amerindian.

Brazilians are much more European than most Latin American countries but somewhat look/are stereotyped as darker than others even in Brazil. People in Brazil often think Brazil is less European than it really is.

[Argentano]

The two things this study shows is that Brazilians suck in self-identification issues and that SSA ancestry shows more than Amerindian.

Brazilians are much more European than most Latin American countries but somewhat look/are stereotyped as darker than others even in Brazil. People in Brazil often think Brazil is less European than it really is.

what about the regional estiimations?

[JMack]

what about the regional estiimations?

I only think Salvador is not representative for the Northeast. This is the blackest city in Brazil and probably outside Africa. Maybe Paris will have the upper hand in the future.

[Argentano]

I only think Salvador is not representative for the Northeast. This is the blackest city in Brazil and probably outside Africa. Maybe Paris will have the upper hand in the future.

Yes but

1) I increased northeast white euro % in all the states. I didnt use Salvador's

2)There is a New study in fortaleza with very similar results. My Estimation Ceara 55% euro. The Study Ceara 57% euro.

Brazil, Northeast, Fortaleza

We genotyped 2,010 DNA samples from six Brazil studies on the Affymetrix Axiom LAT-1 Latin American Array. These samples were drawn from six studies in the North-Eastern region of Brazil, centered on the city of Fortaleza, Ceará state, but also including six other towns or cities (fig. 1). After quality control, we were left with 1,538 samples unrelated to second degree, and 755,801 SNPs (table 1). The detailed quality control steps and results are available in supplementary table S1, Supplementary Material online.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5430616/

The North-Eastern Brazilians had a mean ancestry of 57% European, 20% Amerindian, and 23% African although with considerable ranges of individual ancestries within each component (19–95%, 2–49%, and 4–67%, respectively).

[Bolsonaro2018]

It is nice, maybe I can disagree with Minas Gerais, no way it is 74% european, it is probably 65%. South seems legit tho. I think North is not that relevant since it is only 7% of our population. I think Brazil is a quadroon country like Puerto Rico genetically speaking (a heterogeneous version tho, since it is not an island). 65/25/10

Maybe the Salvador sample is not the best for the northeast, but there is one study in Fortaleza with very similar results.

Still, i increased the northern white euro %

True, but I wouldn't agree if it were the state since it is the most populated state in Northeast, also mostly northeasterners living in other regions are mainly from Bahia or Maranhão.

Ceará is supposed to be more amerindian than african tho

I think Northeast is something like 55/30/15
Southeast 68/22/10
South 80/10/10

but it is just my guess

[Argentano]

It is nice, maybe I can disagree with Minas Gerais, no way it is 74% european, it is probably 65%. South seems legit tho. I think North is not that relevant since it is only 7% of our population. I think Brazil is a quadroon country like Puerto Rico genetically speaking (a heterogeneous version tho, since it is not an island). 65/25/10



True, but I wouldn't agree if it were the state since it is the most populated state in Northeast, also mostly northeasterners living in other regions are mainly from Bahia or Maranhão.

Ceará is supposed to be more amerindian than african tho

I think Northeast is something like 55/30/15
Southeast 68/22/10
South 80/10/10

but it is just my guess

The probem with Minas Gerais is that the best studies i found (many markers, many samples) are from Areas that are unrepresentative.

MG is around 45% white
Bambui is around 65% white
Bapendi is around 76% white

So while this 2 studies seem good, they are unrepresentative of the state. Maybe Bambui being so white makes Bambui Pardos score more euro. Who knows.

https://www.ncbi.nlm.nih.gov/pubmed/27797990
https://www.nature.com/articles/srep09812

[Bolsonaro2018]

The probem with Minas Gerais is that the best studies i found (many markers, many samples) are from Areas that are unrepresentative.

MG is around 45% white
Pelotas is around 65% white
Bapendi is around 76% white

So while this 2 studies seem good, they are unrepresentative of the state. Maybe Pelotas being so white makes Pelotas Pardos score more euro. Who knows.

It makes sense, Baependi is not representative to MG at all, and far I know Pelotas there were loads of african slaves, it would be not representative to RGS as well, the southern region of Minas Gerais is mostly european, I could say it is more than 72% euro on average, but it is my guess, it is the same thing as Interior of SP state, it is full of italians and portuguese settlers, there are even some relevant german groups there. BH (Minas Gerais capital is less euro than southern region of the state, the last study that I remember of Belo Horizonte it was 65% euro like I said for the entire state). Northern region of Minas Gerais is closer to Bahia than anything else, it is a very mulatto place with few portuguese settlers and rarely any italians or germans. I even think Minas Gerais state is a little version of Brazil.

[Costas]

I don't think Sao Paulo and Rio are as European.. but then again I've only been to Sao Paulo City.. and I know the rest of the State is more European I don't know to which extent though.

Other than that very nice job, mostly agree.


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Also this says how important is to take into account regional difference.. you know people say "Brazilians", "Chileans", "Argentinians".. but this show that Central Chile (Valparaiso-Santiago-O'Higgins) where I live is more European than any city in North or Northeast Brazil.

Same with Central Southern Chile (Maule-Biobio).