Latin American Gedmatch Kits (Random Sample) Update with 2.458 samples

[Argentano]

Previous thread

https://www.theapricity.com/forum/sh...Random-Sample)

Gedmatch - Eurogenes K15 - 2.458 Latin American samples

ome comments before the charts.

Argentina : Most of the samples come from a lab in Santa Fe (Argentina) that is now testing people here. It costs around USD 50/100. Many of the argentine are adopted. I have people from every province.
Brazil: Samples from many states.
Mexico: As there are millons of mexicans in the USA, and most of them are low/middle class, the sample should be good
Puerto Rico: Same as Mexico,many in the USA, and most of them are low/middle class, the sample should be good
Chile/Colombia/Costa Rica/Dominicana: Samples are small but they are pretty homogeneous which shows something.

Samples Country
473 P Rico
592 Brazil
399 Argentina
220 Mexico
200 Cuba
96 Colombia
88 Costa Rica
74 Panama
92 Chile
56 R Dominicana
29 Guatemala
24 Venezuela
30 Peru
24 Uruguay
19 Paraguay
11 Ecuador
11 Bolivia
9 El Salvador
8 Honduras
3 Nicaragua






EDIT


Some euro boxplots thanks to a program El Litvino Sent me





Thanks to user El Litvino i could do some PCA


Argentina PCA with some euro references in black




Cuba



Brazil

[Sikeliot]

I am surprised by all of the following:

A. Colombia and Venezuela having little African,
B. Relative homogeneity among Puerto Ricans,
C. Chileans having more Amerindian than expected given how whitewashed they are on these forums,
D. Guatemalans having more European than expected given that they are often said to be predominantly Amerindian across the board.

[Argentano]

I am surprised by all of the following:

A. Colombia and Venezuela having little African,
B. Relative homogeneity among Puerto Ricans,
C. Chileans having more Amerindian than expected given how whitewashed they are on these forums,
D. Guatemalans having more European than expected given that they are often said to be predominantly Amerindian across the board.

A. I think black colombians are VERY BLACK but are a small % of Colombian population. Obviously they exist and this sample is minimizing them, but i think mestizos are much more important. If you take Medellin genetic studies for example, they rarely have pred SSA people.

https://media.springernature.com/m68...ep12376-f1.jpg

Just Costal areas like Chocó have pred black people

http://d2vw8dvx0mg08w.cloudfront.net...5/F1.large.jpg

B. Puerto Rico is a small island with a colonial population. I have noticed that the more colonial the population, the more homogeneous the result.

C. Chileans are mostly mestizo. Both whites and amerindians are rare.

D. The guatemalan sample is too small. I wasnt going to post small samples because the results are less representative.

[Token]

Looks pretty accurate to me but did you used samples from Southern Brazil? I expected a greater full-European minority. Also, can you post the average percentages of European components on Eurogenes K15 of these countries? It would be interesting to see who received more Northern European-like input.

[Token]

Also, i'm surprised to see that there's a considerable huge minority of people less than 40% European in Brazil compared to others Latin American countries, we have peer-reviewed studies that show that even self-identified blacks here have, on average, 40% European ancestry and it reaches 50% in more mixed regions like the Northeast.

[Argentano]

Looks pretty accurate to me but did you used samples from Southern Brazil? I expected a greater full-European minority. Also, can you post the average percentages of European components on Eurogenes K15 of these countries? It would be interesting to see who received more Northern European-like input.

Yes obviously i used samples from all of Brazil. The south included.

I did something similar to what you are asking here

https://www.theapricity.com/forum/sh...=1#post4771003

[Peterski]

Great work guys! Excellent dataset.

What surprised me is the relatively low % of Amerindian in Guatemala. Chile being more Amerindian than Paraguay is also surprising, but maybe it is due to the fact that Paraguayan Indio-Mestizos are poorer than Chilean and don't order DNA tests so often.

[Bobby Martnen]

A. I think black colombians are VERY BLACK but are a small % of Colombian population. Obviously they exist and this sample is minimizing them, but i think mestizos are much more important. If you take Medellin genetic studies for example, they rarely have pred SSA people.

https://media.springernature.com/m68...ep12376-f1.jpg

Just Costal areas like Chocó have pred black people

http://d2vw8dvx0mg08w.cloudfront.net...5/F1.large.jpg

B. Puerto Rico is a small island with a colonial population. I have noticed that the more colonial the population, the more homogeneous the result.

C. Chileans are mostly mestizo. Both whites and amerindians are rare.

D. The guatemalan sample is too small. I wasnt going to post small samples because the results are less representative.

What is NEA? (the purple component on the charts)

[Argentano]

Also, i'm surprised to see that there's a considerable huge minority of people less than 40% European in Brazil compared to others Latin American countries, we have peer-reviewed studies that show that even self-identified blacks here have, on average, 40% European ancestry and it reaches 50% in more mixed regions like the Northeast.

Im sorry but there isnt "a considerable huge minority of people less than 40% European in Brazil". Are you reading the charts correctly? The people below 40% euro in brazil are like 3% of the sample.


Also, take into consideration that when a brazilian genetic study has blacks at 40% euro ON AVERAGE, IT INCLUDES BLACKS who range from 60-20% euro. Its not like 40% euro is the minimun. Thats the average.


https://www.researchgate.net/profile...-shows-the.png

[Argentano]

What is NEA? (the purple component on the charts)

Northeast African. I have it separated because both southern europeans and africans score it. Southern euro Whites can score like 1-1.5% and blacks will score more like 3-6%. So it can be both.