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Using Multiple Chromosomal Marker Analysis Tools, for DNA Profiling in Human Identification: New, Evolving and Productive Approach

New, Evolving and productive approach

Handbook of DNA Profiling

Abstract

DNA genotyping, which started in the 1990s to identify convicts, has become the most sought-after area in forensics. Human Identification (HID) by analyzing the fragment lengths of specific regions in DNA, such as Short Tandem Repeats (STRs), using Capillary Electrophoresis (CE) based method has changed the way forensic cases are resolved. What started with just four STR markers in the 1990s, analyses based on CE had seen many innovations, with now multiple markers systems used including autosomal STRs, Y- STRs, X- STR, and SNPs. With the use of multiple STR markers, case analysis and resolution improved tremendously, scientist now can process DNA that is highly degraded, minimal, contaminated, or decades old, with increased positive outcomes. With analysis of Short Nucleotide Polymorphisms (SNPs), it is now possible to estimate ancestry, predict phenotype, and determine relationships with confidence. Advanced systems are now available to resolve cases, with co-amplification of multiple markers, and multiple combination systems like (Autosomal + Sex Chromosomal markers or Autosomal + SNP markers or Autosomal + Sex Chromosomal + SNP Markers together) to analyze DNA. These systems promise to make analysis efficient, specific, faster, and cost effective. Implementation of Next Generation Sequencing in forensics, and high-throughput sequence data obtained from NGS makes analysis of haplotypes, isometric alleles, heteroplasmy, mixture samples, kinship, mono-zygotic twin analysis, visible traits, geographic ancestry, identity, all possible in a single run. In this chapter we discuss novel approaches taken in genotyping, the use of systems developed in multiplexing, co-amplification, and multiple marker interrogation in single analysis setup.

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Correspondence to Rajendra V. E. Chilukuri .

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© 2022 Springer Nature Singapore Pte Ltd.

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Chilukuri, R.V.E. (2022). Using Multiple Chromosomal Marker Analysis Tools, for DNA Profiling in Human Identification: New, Evolving and Productive Approach. In: Dash, H.R., Shrivastava, P., Lorente, J.A. (eds) Handbook of DNA Profiling. Springer, Singapore. https://doi.org/10.1007/978-981-15-9364-2_64-1

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  • DOI: https://doi.org/10.1007/978-981-15-9364-2_64-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-9364-2

  • Online ISBN: 978-981-15-9364-2

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  1. Latest

    Using Multiple Chromosomal Marker Analysis Tools, for DNA Profiling in Human Identification: New, Evolving and Productive Approach
    Published:
    21 May 2022

    DOI: https://doi.org/10.1007/978-981-15-9364-2_64-2

  2. Original

    Using Multiple Chromosomal Marker Analysis Tools, for DNA Profiling in Human Identification: New, Evolving and Productive Approach
    Published:
    03 February 2022

    DOI: https://doi.org/10.1007/978-981-15-9364-2_64-1