Seeking the origin of Indigenouslanguages in South America PLOSONE
like"jaguar" and"piranha." Now, Dr. Fabrício Ferraz Gerardi from the University of Tübingen's Institute of Linguistics and a team of international researchers have used methods developed in the field of molecular biology to compare and investigate the Tupí-Guaraní languages. This has shed light on how the languages are related to each other, as well as on their geographical and chronological evolution.
"In molecular biological relationship analysis, for example of different animal or plant species, the respective gene sequences are used. They indicate which areas are the same or similar. The general random rate of gene changes—mutations—can also be used to estimate how long ago two related species split off from a common ancestor," Gerardi explains.
"We wanted to know what the tree looked like, how strongly related individual languages were to each other, how old each language was, and when it split into new languages," Gerardi says.The distribution of the Tupí-Guaraní language family extends more than 4000 kilometers in both width and breadth.
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