The first hunters-rackets of the Colombia they disappeared completely after a “mysterious” settlement occurrence About 6 thousand years ago. This is indicated by a study led byUniversity of Tubinga (Germany) according to which the population, so far unknown, would then be “lost” for unknown causes at the moment.
According to reconstruction, the mysterious population was coming from the North and entered the continent in a region corresponded to the current Colombia, starting from which it then spread throughout South America.
The researchers managed to find genetic tests of this previously unknown primitive population, in this way “tracing” these first settlers of the plateaus around Bogotaabout 6000 years ago. We still don’t know much about them, but it seems that it “disappeared” at the latest 2000 years ago and were replaced by a second migration by Central America.
The researchers, in particular, studied the genetic material of 21 individuals from five archaeological sites on the Colombian plateaus.
These are the First ancient human genomes of Colombia never published
precise Cosimo Posththe main author of the study
The genetic samples were taken from bones and teeth And they cover a period of almost 6000 years, until just before the start of the Spanish colonization: among these, the oldest come from the excavation site of Checua north of Bogotaat an altitude of about 3000 meters and genetic analyzes undoubtedly indicate that they belong to individuals of a relatively small population of hunters-cackers of the plateau.
Our results show that checua individuals derive from oldest population which spread and differentiated very quickly throughout South America
explains Kim-Louise Krettekfirst author of the work
Surprisingly, the genetic material of these people is completely disappeared And it is no longer detectable in individuals in the region that are about 2000 years old.
We were unable to find descendants of these first hunters-rackets of the Colombian plateaus: the genes were not transmitted-in fact Krettek specifies-this means that a Complete population exchange
Something decidedly unusual, especially in South America: in fact, so far, one has been observed strong genetic continuity In the population of the Andes and the southern cone of South America during long periods of time and cultural changes.
Genetic exams also suggest that the subsequent culture of the plateau came from the regions of Central America.
The issues relating to history and origins touch anDelicate area of autoperer and identity of the indigenous population – concludes Posth – genetic predisposition must not be considered on a par with cultural identity
For this reason, before completing the work, the research team of Tubb And Bogota interacted with the Guard indígena movesthe living descendants of culture Move in the plateau of Bogota.
The work was published on Science Advances.
Sources: University of Tubinga / Science Advances
