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MatchY in practice: Factors influencing pedigree-based Y-STR match probabilities.

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Male Pedigree Toolbox: A Versatile Software for Y-STR Data Analyses.

Arwin Ralf1, Bram van Wersch1, Diego Montiel González1

  • 1Department of Genetic Identification, Erasmus MC, University Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands.

Genes
|February 24, 2024
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Summary

The Male Pedigree Toolbox (MPT) automates Y-chromosomal short tandem repeat (Y-STR) data analysis for male lineage studies. This software enhances forensic and genealogical research by providing detailed genetic relationship insights.

Keywords:
Y-STRsautomated data analysismale differentiationpatrilineal genealogy

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Area of Science:

  • Genetics
  • Bioinformatics
  • Forensic Science

Background:

  • Y-chromosomal short tandem repeats (Y-STRs) are crucial for forensic, genealogical, and population genetics.
  • The rise of rapidly mutating (RM) Y-STRs offers enhanced male differentiation but complicates data analysis.
  • Existing software for automated Y-STR analysis is limited, hindering research and application.

Purpose of the Study:

  • To introduce the Male Pedigree Toolbox (MPT), a novel software for automated Y-STR data analysis.
  • To facilitate the analysis of patrilineal genealogical relationships using Y-STR data.
  • To support forensic, genealogical, and genetic research with advanced Y-STR analysis capabilities.

Main Methods:

  • Development of the Male Pedigree Toolbox (MPT) software (v1.0).
  • Implementation of automated analysis for Y-STR pedigree data.
  • Integration of mutation rate estimation, differentiation rate calculation, ancestral haplotype determination, and machine learning-based probabilistic classifications.

Main Results:

  • The MPT provides automated analysis of Y-STR data for patrilineal relationships.
  • The software estimates mutation and differentiation rates, identifies ancestral haplotypes, and visualizes genetic variation.
  • MPT offers probabilistic classifications for establishing pedigree structure and relatedness, even for close relatives.

Conclusions:

  • The Male Pedigree Toolbox (MPT) addresses the need for automated Y-STR data analysis.
  • MPT enhances the application of Y-STRs in forensics, genealogy, and population genetics.
  • The publicly available MPT aims to advance research and practical applications of Y-STR analysis.