Y-Chromosomal STR Typing and Case Studies

  • Jahangir Imam
  • Ajay Kumar Rana
  • Romana Reyaz


The basis of Y-STR DNA profiling is derived from Y chromosome, which is passed down to all the male child from the father almost intact, from generation to generation without changing (except mutations in Y-chromosome STRs). The beautiful aspect of Y-STRs is its consistent and allele amplification among close paternal male relatives as well as dispersed male relatives. Y chromosome has lower mutability rate than the mtDNA which is always transferred to all the children from the mother, thus making it more stable generation after generation. This chapter elaborately discussed various Y-STR kits developed, its application, and accuracy. We have also highlighted the various reasons and conditions for mutations in Y chromosomes. In this chapter, we tried to establish the application of Y-STRs profiling in forensic science and criminal justice system and its implication. Y-STR-related case studies have also documented to show its use and applicability in forensic sciences.


Y chromosome STRs DNA typing Forensic science Haplotype Case studies 



The authors are thankful to the director, State Forensic Science Laboratory, Ranchi, Jharkhand, for support.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Jahangir Imam
    • 1
  • Ajay Kumar Rana
    • 1
  • Romana Reyaz
    • 1
  1. 1.DNA Fingerprinting Unit, State Forensic Science Laboratory, Department of Home, Jail and Disaster ManagementGovernment of JharkhandRanchiIndia

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