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© Research
Publication : American journal of human genetics

The fingerprint of phantom mutations in mitochondrial DNA data

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in American journal of human genetics - 15 Oct 2002

Bandelt HJ, Quintana-Murci L, Salas A, Macaulay V

Link to Pubmed [PMID] – 12384858

Am. J. Hum. Genet. 2002 Nov;71(5):1150-60

Phantom mutations are systematic artifacts generated in the course of the sequencing process itself. In sequenced mitochondrial DNA (mtDNA), they generate a hotspot pattern quite different from that of natural mutations in the cell. To identify the telltale patterns of a particular phantom mutation process, one first filters out the well-established frequent mutations (inferred from various data sets with additional coding region information). The filtered data are represented by their full (quasi-)median network, to visualize the character conflicts, which can be expressed numerically by the cube spectrum. Permutation tests are used to evaluate the overall phylogenetic content of the filtered data. Comparison with benchmark data sets helps to sort out suspicious data and to infer features and potential causes for the phantom mutation process. This approach, performed either in the lab or at the desk of a reviewer, will help to avoid errors that otherwise would go into print and could lead to erroneous evolutionary interpretations. The filtering procedure is illustrated with two mtDNA data sets that were severely affected by phantom mutations.

http://www.ncbi.nlm.nih.gov/pubmed/12384858