A global analysis of Y-chromosomal haplotype diversity for 23 STR loci
- PMID: 24854874
- PMCID: PMC4127773
- DOI: 10.1016/j.fsigen.2014.04.008
A global analysis of Y-chromosomal haplotype diversity for 23 STR loci
Abstract
In a worldwide collaborative effort, 19,630 Y-chromosomes were sampled from 129 different populations in 51 countries. These chromosomes were typed for 23 short-tandem repeat (STR) loci (DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS385ab, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS635, GATAH4, DYS481, DYS533, DYS549, DYS570, DYS576, and DYS643) and using the PowerPlex Y23 System (PPY23, Promega Corporation, Madison, WI). Locus-specific allelic spectra of these markers were determined and a consistently high level of allelic diversity was observed. A considerable number of null, duplicate and off-ladder alleles were revealed. Standard single-locus and haplotype-based parameters were calculated and compared between subsets of Y-STR markers established for forensic casework. The PPY23 marker set provides substantially stronger discriminatory power than other available kits but at the same time reveals the same general patterns of population structure as other marker sets. A strong correlation was observed between the number of Y-STRs included in a marker set and some of the forensic parameters under study. Interestingly a weak but consistent trend toward smaller genetic distances resulting from larger numbers of markers became apparent.
Keywords: AMOVA; Database; Discriminatory power; Gene diversity; Population structure.
Copyright © 2014 The Authors. Published by Elsevier Ireland Ltd.. All rights reserved.
Figures






References
-
- Roewer L., Arnemann J., Spurr N.K., Grzeschik K.H., Epplen J.T. Simple repeat sequences on the human Y chromosome are equally polymorphic as their autosomal counterparts. Hum. Genet. 1992;89:389–394. - PubMed
-
- Mathias N., Bayes M., Tyler-Smith C. Highly informative compound haplotypes for the human Y chromosome. Hum. Mol. Genet. 1994;3:115–123. - PubMed
-
- Roewer L., Kayser M., Dieltjes P., Nagy M., Bakker E. Analysis of molecular variance (AMOVA) of Y-chromosome-specific microsatellites in two closely related human populations. Hum. Mol. Genet. 1996;5:1029–1033. - PubMed
-
- Kayser M., Caglia A., Corach D., Fretwell N., Gehrig C. Evaluation of Y-chromosomal STRs: a multicenter study. Int. J. Legal Med. 1997;110:125–133. 141-129. - PubMed
-
- Skaletsky H., Kuroda-Kawaguchi T., Minx P.J., Cordum H.S., Hillier L. The male-specific region of the human Y chromosome is a mosaic of discrete sequence classes. Nature. 2003;423:825–837. - PubMed
Publication types
MeSH terms
Grants and funding
LinkOut - more resources
Full Text Sources
Other Literature Sources