Korean J Leg Med.
2007 May;31(1):36-40.
Unusual mtDNA sequencing results from ancient DNA
- Affiliations
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- 1Department of Forensic Medicine, Seoul National University College of Medicine, Korea. sdlee@snu.ac.kr
Abstract
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Sequence analysis of human mitochondrial DNA(mtDNA) is being used widely to characterize individual identification, particularly
when there is insufficient nuclear DNA in samples for typing. Hair shafts, bones, teeth and other samples that are
severely decomposed may be subjected to mtDNA analysis. As sample decomposes, however, the possibility of mtDNA to
be degraded becomes high and the possibility of spurious results becomes high. In this case mtDNA sequencing results must
be carefully analyzed. We got unusual results while typing two human bone samples, which were not compatible with human
mtDNA sequence. Bones were about 50 and 35 years old. We report the results with discussions about ancient DNA
sequencing.