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Rare Event Detection Using Error-corrected DNA and RNA Sequencing
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MULTINDELS-BOV: Zebu traceback method based on DNA insertion-deletion polymorphisms.

M Groenner-Penna1, E F D Croce1, C G Pimenta1

  • 1Gene-Genealógica Central de GenoTipagem de Animais, Belo Horizonte, MG, Brasil.

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Summary
This summary is machine-generated.

A new DNA traceback system using insertion/deletion (indel) polymorphisms was developed for Brazilian cattle, primarily Zebu (Bos taurus indicus). This cost-effective method ensures reliable beef traceability from farm to table.

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Area of Science:

  • Animal Genetics and Genomics
  • Forensic Science and Biotechnology

Background:

  • Brazil's significant beef production necessitates robust animal traceback systems.
  • Existing DNA traceback methods primarily focus on Bos taurus taurus, not the predominant Bos taurus indicus (Zebu) in Brazil.

Purpose of the Study:

  • To develop a DNA traceback method suitable for Bos taurus indicus (Zebu) while accommodating Bos taurus taurus.
  • To create a cost-effective and automatable system for large-scale genetic databases and national cattle traceability.

Main Methods:

  • Utilized insertion/deletion (indel) polymorphisms, known for their simplicity and biallelic nature.
  • Screened 94 indels in DNA pools from Zebu and taurine cattle.
  • Selected 22 indels with high heterozygosity for two multiplex PCR assays.

Main Results:

  • Achieved a low probability of random match: 1.12 x 10(-8) for Zebu and 1.60 x 10(-6) for taurine cattle.
  • Developed the MULTINDELS-BOV system, suitable for constructing large genetic databases.
  • Estimated analysis cost at less than US$15.00 per animal.

Conclusions:

  • The developed indel-based DNA traceback system is highly accurate and cost-effective for Brazilian cattle.
  • This system offers a viable solution for a national cattle DNA traceability program in Brazil.