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Updating the Y-chromosomal phylogenetic tree for forensic applications based on whole genome SNPs.

Identifieur interne : 000042 ( PubMed/Corpus ); précédent : 000041; suivant : 000043

Updating the Y-chromosomal phylogenetic tree for forensic applications based on whole genome SNPs.

Auteurs : A. Van Geystelen ; R. Decorte ; M H D. Larmuseau

Source :

RBID : pubmed:23597787

English descriptors

Abstract

The Y-chromosomal phylogenetic tree has a wide variety of important forensic applications and therefore it needs to be state-of-the-art. Nevertheless, since the last 'official' published tree many publications reported additional Y-chromosomal lineages and other phylogenetic topologies. Therefore, it is difficult for forensic scientists to interpret those reports and use an up-to-date tree and corresponding nomenclature in their daily work. Whole genome sequencing (WGS) data is useful to verify and optimise the current phylogenetic tree for haploid markers. The AMY-tree software is the first open access program which analyses WGS data for Y-chromosomal phylogenetic applications. Here, all published information is collected in a phylogenetic tree and the correctness of this tree is checked based on the first large analysis of 747 WGS samples with AMY-tree. The obtained result is one phylogenetic tree with all peer-reviewed reported Y-SNPs without the observed recurrent and ambiguous mutations. Nevertheless, the results showed that currently only the genomes of a limited set of Y-chromosomal (sub-)haplogroups is available and that many newly reported Y-SNPs based on WGS projects are false positives, even with high sequencing coverage methods. This study demonstrates the usefulness of AMY-tree in the process of checking the quality of the present Y-chromosomal tree and it accentuates the difficulties to enlarge this tree based on only WGS methods.

DOI: 10.1016/j.fsigen.2013.03.010
PubMed: 23597787

Links to Exploration step

pubmed:23597787

Le document en format XML

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