Short tandem repeats
Biochemistry and Biotechnology
Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
The genetic analysis of ancient populations through DNA from bone remains, requires the use of short sized loci that can be amplified by polymerase chain reaction (PCR) for which the short tandem repeat (STR) loci are most suitable. These techniques can also be applied to genetic identification in forensic casework. In this study three STR loci, HUMFES/FPS, HUMTH01 and HUMVWA31A, were selected to estimate their usefulness when applied to recent and ancient spongy bone DNA typing. In addition, loci D1S80 and HLA DQα were also tested in the analysis of recent spongy bone DNA. The recent remains studied were constituted by ten spongy bone samples of postmortem material from one individual buried for 1 year. The ancient remains are composed by 8 spongy bone samples from the heads of left femurs from a XII-XIII Centuries Basque Country population. Adequate amplification and typing results could only be obtained with cetyltrimethyl ammonium bromide (CTAB)-extracted DNA, without any further purification after precipitation. Genotypes of the one year post-mortem material and those of his son and his wife were obtained at the D1S80, HLA-DQα, and STR loci. In all these systems, no exclusion was observed, with a combined probability of paternity of 0.9997. This demonstrates the reliability of the obtained results. The genetic typing of HUMTH01 in spongy bone from the XII-XIII Centuries Basque Country individuals was also performed. This will allow the genetic analysis on ancient bone remains and therefore, to carry out evolutionary population studies.
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