No Evidence of Neandertal mtDNA Contribution to Early Modern Humans

@article{Serre2004NoEO,
  title={No Evidence of Neandertal mtDNA Contribution to Early Modern Humans},
  author={David Serre and Andr{\'e} Langaney and Mario Chech and Maria Teschler-Nicola and Maja Paunovi{\'c} and Philippe Mennecier and Michael Hofreiter and G{\"o}ran Possnert and Svante P{\"a}{\"a}bo},
  journal={PLoS Biology},
  year={2004},
  volume={2}
}
The retrieval of mitochondrial DNA (mtDNA) sequences from four Neandertal fossils from Germany, Russia, and Croatia has demonstrated that these individuals carried closely related mtDNAs that are not found among current humans. However, these results do not definitively resolve the question of a possible Neandertal contribution to the gene pool of modern humans since such a contribution might have been erased by genetic drift or by the continuous influx of modern human DNA into the Neandertal… 

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