We have found the oldest genetic evidence of incest in Europe. And it’s a case of father and daughter
When we talk about endogamy in the historical worldthe truth is that it is easy to think about the royal dynasties or in island populations that were on the verge of extinction. But the truth is that this type of practice dates back 4,000 years, since it was only now that a team of researchers has found the first irrefutable biological proof of a sexual union. between a father and his own daughter in European prehistory. The study. Although it may seem crazy, the fact that a father and his own daughter were united beyond the family bond, the reality is very different. The research published in Communications Biology has reached this conclusion after analyzing some remains from a Bronze Age community in Calabria. The discovered. The finding focuses on the Grotta della Monacaan archaeological site in southern Italy used for both mining and burials during the Bronze Age (between 1780 and 1380 BC). There, archaeologists recovered remains of several individuals, but two of them powerfully called the attention of geneticists when analyzing your DNA. Specifically, an adult male with the code GMO022 and a pre-adolescent child with the code GMO007. The genetic material. It undoubtedly keeps a large number of secrets, and the fact that it is maintained over time to know all its details. By sequencing the genomes of these two subjects, the researchers They saw the kinship they had with great clarityand the subject with the number 22 was not only the father of the child. The analysis revealed that the child’s mother was also the daughter of subject 22. That is, child GMO007 was the result of a first-degree union between father and daughter. According to the researchers, led by paleogeneticists from the University of Bologna and the Max Planck Institute, this is the oldest evidence of this type of incest ever sequenced in Europe. Behind the discovery. How can researchers be so sure of this? The key is in a genetic measure called ROH or “homozygosity sections“To understand it, you have to know that when two parents are closely related, their offspring will inherit identical genetic blocks from both sides, and not different ones, as is normal in relationships with two genetically different people. The closer the relationship, the longer these blocks are. In the case of boy GMO007, researchers found unusually long stretches of identical DNA, occupying a massive portion of his genome. This through the computer modeling managed to rule out that it was a union between brothersand confirmed that the markers fit a father-daughter relationship. Habit? Without a doubt, it is the idea that can come to mind when seeing something that today can be a real aberration. In this way, looking for the reasons, it was seen that this community did not have a state of isolation that justified them having to procreate among their own relatives, since the population was about 5,000 individuals. In this way, there were many options available to not have to choose to have a father-daughter relationship. This leads the study authors to an important conclusion: this was not an accepted cultural practice. Unlike later Egyptian dynasties or the Incas, where royal incest was sacred, in this Bronze Age community the case of GMO007 appears to be a unique event. It wasn’t normal. In this way, it seems that this was a chance event or a violation of a taboo, which for some reason occurred in this family. The reasons are not known, but at that time it was not something accepted by social norms, despite talking about a community that was 3,700 years old. Its importance. Until now, evidence of first-degree incest (parent-child or full siblings) was almost non-existent in the European genetic registry outside of very specific cases. We had data on unions between siblings in Neanderthals or distant cases in the Irish Neolithic (Newgrange), but nothing so explicit between direct generations in this period. In this way, this study reminds us that the DNA of the oldest people even helps us see their most intimate details. Images | Sangharsh Lohakare In Xataka | They found a cube-shaped skull in Tamaulipas and thought it was a migrant. Science has turned history upside down