Correction: Methylation Markers for the Identification of Body Fluids and Tissues from Forensic Trace Evidence.

[This corrects the article DOI: 10.1371/journal.pone.

Methylation Markers for the Identification of Body Fluids and Tissues from Forensic Trace Evidence.

The identification of body fluids is an essential tool for clarifying the course of events at a criminal site. The analytical problem is the fact that the biological material has been very often exposed to detrimental exogenous influences. Thereby, the molecular substrates used for the identification of the traces may become degraded.

MtDNA typing of single-sperm cells isolated by micromanipulation.

Some sexual assault crimes constitute a problem for the legal institutions confronted with the DNA analysis of such cases. Often, sperm cells are found in the victim's vaginal tract during medical examination but their successful genotyping is compromised by the huge excess of the victim's epithelial cells as well as by the degradation of genomic DNA present in sperm cells as a consequence of female immune response. Mitochondrial DNA present in the mid-piece of sperm cells might be useful in some specific cases in order to differentiate the donors of a semen sample.