Neandertals were the only representatives of the genus Homo in Europe during most of the last 300,000 years, becoming extinct shortly after the arrival of modern humans on the continent around 30,000 years ago. Traces of mitochondrial DNA (mtDNA) sequences still present in fossilized bones have been used in past studies in an effort to identify and track the potential genetic legacy of Neandertals among modern Europeans. Though such genetic continuity would have been the hallmark of interbreeding between modern humans and Neandertals at the time of their European coexistence, the mtDNA sequences from the nine neandertal specimens that have been analyzed to date and that lived around the time of the cohabitation period do not match those found among modern humans, suggesting that little, if any, interbreeding took place.
In their new work, Dr. Hnni and colleagues now report the oldest Neandertal mtDNA sequence ever recovered. The Neandertal specimen analyzed consists in a molar of a 10-12 year-old child that lived in the Meuse valley (Scladina cave, Belgium) around 100,000 years ago. The specimen yielded 123bp of mtDNA a very short section of DNA by modern sequencing standards,
Contact: Heidi Hardman