Developmental Validation of DNA Quantitation System, Extended STR Typing Multiplex, and Database Solutions for...

Area of Science:

• Forensic Science
• Genetics
• Wildlife Forensics

Background:

• Accurate species identification and individual profiling are crucial for wildlife conservation and forensic investigations.
• Existing methods for lion (Panthera leo) DNA analysis may lack comprehensive quantification and specific identification markers.

Purpose of the Study:

• To develop and validate a dual system for lion DNA analysis: Pleo Qplex for DNA quantification and inhibitor detection, and Pleo STRplex for individual identification.
• To establish a robust short tandem repeat (STR) multiplex assay for lion genetic profiling, including species confirmation.

Main Methods:

• Development of Pleo Qplex to quantify nuclear and mitochondrial DNA and detect PCR inhibitors.
• Design and implementation of Pleo STRplex, a seven-locus STR multiplex assay for Panthera leo.
• Preparation of an allelic ladder for reliable STR marker allele calling.
• Utilizing GenoProof Suite for STR profile analysis, including databasing, matching, and relationship analysis.

Main Results:

• Pleo Qplex successfully quantifies DNA and identifies inhibitors, ensuring reliable downstream analysis.
• Pleo STRplex provides a robust DNA profile for individual identification of Panthera leo, incorporating novel and previously established STR loci.
• The developed STR loci demonstrate potential for typing other Panthera species.
• An allelic ladder was established for accurate and consistent allele interpretation.

Conclusions:

• The Pleo Qplex and Pleo STRplex systems offer a comprehensive solution for lion DNA analysis, enhancing forensic capabilities.
• These tools are valuable for species determination, individual identification, and population genetics studies in Panthera leo.
• The developed STR markers expand the utility of genetic analysis within the genus Panthera.