TEMP2

TEMP2 detects transposon insertions from short-read whole-genome sequencing, precisely identifies germline insertions, estimates frequencies of de novo (singleton) insertions, and discriminates chimeric-read artifacts.

Key Features:

• High sensitivity and precision: Demonstrates exceptional sensitivity and precision in detecting germline transposon insertions validated on simulated Drosophila data and experimental data from flies and humans.
• De novo (singleton) insertion detection: Identifies de novo transposon insertions and estimates their frequencies in short-read whole-genome sequencing data.
• Chimeric-read handling: Distinguishes artificial insertion sites introduced by chimeric reads from true de novo insertions, maintaining accuracy at high chimeric-read levels.
• Validation with long-read benchmark: Performance is benchmarked against a PacBio long-read sequencing dataset from Drosophila.

Scientific Applications:

• Understanding genomic instability: Enables investigation of how new transposon insertions contribute to genomic instability.
• Studying evolutionary dynamics: Supports analysis of the role of transposons in host genome evolution.
• Investigating hybrid dysgenesis and transposon regulation: Applied to cases such as hybrid dysgenic flies with de-repressed P-elements to track continuous new insertions prior to re-establishment of piRNA-mediated repression.

Methodology:

Leverages a PacBio long-read sequencing–based benchmark dataset from Drosophila for validation of detection and frequency estimation.