Nordeste (socio-geographic division)

Its area is approximately 1,542,271 km², made up of the official Northeast Region, minus the western half of Maranhão, but including the north of Minas Gerais - the Jequitinhonha Valley.

The composition of the Northeast of Brazil compared to other regions of Brazil according to autosomal genetic studies focused on the Brazilian population (which has been found to be a complex melting pot of European, African and Native Americans components): An autosomal study from 2013, with nearly 1300 samples from all of the Brazilian regions, found a slightly pred.

The results, published by the scientific American Journal of Human Biology by a team of the Catholic University of Brasília, show that, in Brazil, physical indicators such as colour of skin, eyes and hair have little to do with the genetic ancestry of each person, which has been shown in previous studies (regardless of census classification).

In this work we analyzed the information content of 28 ancestry-informative SNPs into multiplexed panels using three parental population sources (African, Amerindian, and European) to infer the genetic admixture in an urban sample of the five Brazilian geopolitical regions.

"[6] An autosomal DNA study from 2009 found a similar profile "all the Brazilian samples (regions) lie more closely to the European group than to the African populations or to the Mestizos from Mexico.

[8] A study from 1965, "Methods of Analysis of a Hybrid Population" (Human Biology, vol 37, number 1), led by the geneticists D. F. Roberts e R. W. Hiorns, found out the average the Northeastern Brazilian to be predominantly European in ancestry (65%), with minor but important African and Native American contributions (25% and 9%).