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Related Experiment Video

Updated: Mar 1, 2026

Pre-Implantation Genetic Testing for Aneuploidy on a Semiconductor Based Next-Generation Sequencing Platform
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Integrated Genetic Profiling for Cattle Parentage Testing via Next-Generation Sequencing.

Jiaojiao Geng1,2, Jiajun Liu1,2, Zhentang Liu1,2

  • 1Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.

Electrophoresis
|February 28, 2026
PubMed
Summary
This summary is machine-generated.

A new cattle DNA testing panel using next-generation sequencing (NGS) offers superior accuracy for paternity disputes. This advanced method overcomes limitations of older techniques, improving genetic testing reliability in cattle.

Keywords:
Bos taurusSTRanimal forensic geneticsindividual identificationpaternity testing

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Area of Science:

  • Veterinary Genetics
  • Forensic Science
  • Molecular Biology

Background:

  • Cattle paternity testing currently relies on dinucleotide STR (di-STR) or SNP analysis.
  • Di-STR markers often yield stutter artifacts, impacting genotyping accuracy.
  • Single nucleotide polymorphisms (SNPs) lack sufficient polymorphic levels for reliable identification.

Purpose of the Study:

  • To develop and validate a novel integrated next-generation sequencing (NGS) panel for cattle.
  • To overcome the limitations of existing cattle DNA testing methods.
  • To enhance the accuracy and efficiency of cattle genetic profiling for forensic applications.

Main Methods:

  • Developed an NGS panel integrating 33 di-STRs and 30 tetranucleotide STRs (tetra-STRs).
  • Included mitochondrial displacement loop (D-loop) region, cytochrome b (CYTB), and recombination-activating gene 1 (RAG1) in the panel.
  • Validated the panel using blood and hair samples, assessing genotyping success, amplification efficiency, and consistency.

Main Results:

  • Achieved a high average genotyping success rate of 99.6%.
  • Demonstrated balanced amplification efficiency across most STR loci.
  • Reported an average genotyping consistency rate of 96.4% between blood and hair samples.
  • Attained high discrimination power (1-1.8 × 10-13) and cumulative probability of exclusion (1-1.7 × 10-8) for duos.

Conclusions:

  • The novel NGS panel offers a significant advancement over current capillary electrophoresis (CE)-based systems for cattle profiling.
  • The panel provides superior accuracy, multiplex capability, and efficiency for forensic genetic testing in cattle.
  • Demonstrated applicability and reliability in resolving cattle paternity disputes through casework analysis.