RGRPT

RGRPT identifies genome rearrangements across mammalian genomes using phylogenetic-tree-based analysis to characterize evolutionary events.

Key Features:

• Phylogenetic approach: Leverages phylogenetic trees to trace and predict genome rearrangement events.
• Sensitivity and specificity: Demonstrated superior sensitivity and specificity in predicting rearrangement events on simulated data compared to existing methods.
• Resolution flexibility: Operates at multiple resolutions, exemplified at 10 kb and 50 kb scales.
• Event detection and counts: At 10 kb resolution, identified 1,157 rearrangement events across six mammalian genomes (human, chimpanzee, rhesus macaque, mouse, rat, and dog): 858 reversals, 16 translocations, 249 transpositions, and 34 fusions/fissions, and at 50 kb resolution identified 475 events comprising 332 reversals, 13 translocations, 94 transpositions, and 36 fusions/fissions.
• Rearrangement types: Predicts reversals, translocations, transpositions, and fusions/fissions.

Scientific Applications:

• Evolutionary biology: Characterizes genome rearrangements to inform studies of mammalian evolutionary history and genomic architecture.
• Phylogeny reconstruction: Supports construction and refinement of phylogenetic trees by mapping rearrangement events across species.
• Divergence mechanism analysis: Enables analysis of the types and frequencies of rearrangements underlying species divergence.

Methodology:

RGRPT uses phylogenetic-tree-based analysis, performs multi-resolution analysis (notably at 10 kb and 50 kb), and was evaluated using simulated data across six mammalian genomes (human, chimpanzee, rhesus macaque, mouse, rat, dog).