Objective: This study aims to better understand the variability of the BCHE gene, and regions adjacent to it, in different populations. More specifically, it also aims to analyze the diversity of this DNA segment among two Amerindian populations, whose distinct characteristics provide us an extremely interesting material for genetic, evolutionary and anthropological studies, since they diverge genetically and culturally in spite of a very close living relationship in space and time.
Methods: The two Amerindian populations analysed were from Guarani-Mbyá and Kaingang ethnic groups, both from the Rio das Cobras indian reservation area (Paraná, Brazil).