Journal of Molecular Evolution

, Volume 64, Issue 1, pp 50–60

Evaluating Neanderthal Genetics and Phylogeny

  • Martin B. Hebsgaard
  • Carsten Wiuf
  • M. Thomas P. Gilbert
  • Henrik Glenner
  • Eske Willerslev
Article

DOI: 10.1007/s00239-006-0017-y

Cite this article as:
Hebsgaard, M.B., Wiuf, C., Gilbert, M.P. et al. J Mol Evol (2007) 64: 50. doi:10.1007/s00239-006-0017-y

Abstract

The retrieval of Neanderthal (Homo neanderthalsensis) mitochondrial DNA is thought to be among the most significant ancient DNA contributions to date, allowing conflicting hypotheses on modern human (Homo sapiens) evolution to be tested directly. Recently, however, both the authenticity of the Neanderthal sequences and their phylogenetic position outside contemporary human diversity have been questioned. Using Bayesian inference and the largest dataset to date, we find strong support for a monophyletic Neanderthal clade outside the diversity of contemporary humans, in agreement with the expectations of the Out-of-Africa replacement model of modern human origin. From average pairwise sequence differences, we obtain support for claims that the first published Neanderthal sequence may include errors due to postmortem damage in the template molecules for PCR. In contrast, we find that recent results implying that the Neanderthal sequences are products of PCR artifacts are not well supported, suffering from inadequate experimental design and a presumably high percentage (>68%) of chimeric sequences due to “jumping PCR” events.

Keywords

Ancient DNAHuman evolutionNeanderthal DNABayesian inferencePCR artifactsDNA damage

Supplementary material

supp.pdf (194 kb)
Supplementary material

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Martin B. Hebsgaard
    • 1
  • Carsten Wiuf
    • 2
    • 3
  • M. Thomas P. Gilbert
    • 1
  • Henrik Glenner
    • 1
  • Eske Willerslev
    • 1
  1. 1.Centré for Ancient GeneticsNiels Bohr Institute and Biological Institute, University of CopenhagenCopenhagenDenmark
  2. 2.Bioinformatics Research CenterUniversity of AarhusAarhusDenmark
  3. 3.Molecular Diagnostic LaboratoryAarhus University HospitalAarhusDenmark