Argentina's maternal lineages mainly from local populations

[Token]

New paper: https://www.nature.com/articles/s10038-017-0406-7

We present new data and analysis on the genetic variation of contemporary inhabitants of central Argentina, including a total of 812 unrelated individuals from 20 populations. Our goal was to bring new elements for understanding micro-evolutionary and historical processes that generated the genetic diversity of the region, using molecular markers of uniparental inheritance (mitochondrial DNA and Y chromosome). Almost 76% of the individuals show mitochondrial lineages of American origin. The Native American haplogroups predominate in all surveyed localities, except in one. The larger presence of Eurasian maternal lineages were observed in the plains (Pampas) of the southeast, whereas the African lineages are more frequent in northern Córdoba. On the other hand, the analysis of 258 male samples reveals that 92% of them present Eurasian paternal lineages, 7% carry Native American haplogroups, and only 1% of the males show African lineages. The maternal lineages have high genetic diversity homogeneously distributed throughout central Argentina, probably as result of a recent common origin and sustained gene flow. Migratory events that occurred in colonial and recent times should have contributed to hiding any traces of differentiation that might have existed in the past. The analysis of paternal lineages showed also homogeneous distribution of the variation together with a drastic reduction of the native male population.

[QUICAS]

I thought it would be higher euro, since in Northern Brazil genetic studies put it 31% of mitochondrial coming from Europe. If I am not wrong, there is other genetic test with southern brazilians where 67% of the population show mitochondries from Europe. The male chromosome is 97% euro in all the country. If even in Brazil and Argentina the euro mitochondries are below 45%, I think in the rest of Latin America is almost 0%. Despite just 26% of euro mitocondries, I still think Argentina is a pretty euro country.

[Taiguaitiaoghyrmmumin]

Interesting I thought it would be low honestly

[QUICAS]

Argentina had a small population and received a great euro immigration in their urban areas. I thought milions of europeans would make them at least close to South Brazilian percentage.

[Aren]

You forgot to mention they studied central Argentina.

[Leto]

Argentina has a shit ton of post independence immigrant descendants from Spain, Italy and to a lesser extent other European countries, so there's no way the population as a WHOLE has mostly Native American mtDNA haplogroups.

[Argentano]

The study was done in small villages of Cordoba, Santiago del Estero and San Luis so this IS NOT TYPICAL PAMPEAN REGION. SDE is northwest and CBA SLU small villages are mostly colonial.

I remember another study with the same sample and they mentioned that the less euro result was expected because they were testing small villages in cordoba instead of the big cities where most of the euro immigrants went.

Also mtdna is kind of useless as you can be 99% euro 1% amerindian and have amerindian mtdna. The real results are the autosomal/bi parental


Bi Parental Buenos Aires and Cordoba






Very interesting nevertheless.

[QUICAS]

Makes sense to me. Most immigrant in Brazil were rural, in Argentina its urban by far.

[Argentano]

This study for example is much better as it tested more representative regions

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5378445/

YDNA and Mtdna of Argentina Paraguay Bolivia and Peru


In this study central Argentina has 99% euro ydna and 57% euro mtdna. More in accordance with other studies

[Miko]

Makes sense to me. Most immigrant in Brazil were rural, in Argentina its urban by far.

Argentina is 92% urban.