GECKO

GECKO performs pairwise sequence comparison to identify High-scoring Segment Pairs (HSPs) and enable scalable, accurate comparisons across complete genomes.

Key Features:

• High-Quality Results: Produces sequence-comparison results comparable to MUMmer for reliable alignment detection.
• Controlled Memory Consumption: Implements a modular out-of-core strategy that leverages secondary storage to prevent memory overflow during HSP identification.
• Linear-Time Performance: Exhibits linear-time behavior with execution times comparable to or faster than state-of-the-art methods on long sequences.
• Modular C Libraries: Provides C libraries tailored for pairwise sequence comparison to support deployment across diverse computing environments.
• Computation and I/O Optimization: Applies software engineering principles to minimize redundant calculations and optimize input/output operations.

Scientific Applications:

• Massive Genome Comparison: Enables comprehensive comparisons across complete genomes for large-scale genomics projects.
• Evolutionary Event Detection: Identifies conserved synteny blocks and supports calculation of inter-genome distances to investigate evolutionary relationships.
• Scalability Across Genome Sizes: Expands limits on input data size to accommodate datasets ranging from viral genomes to mammalian chromosomes.

Methodology:

GECKO uses a modular architecture and C libraries for pairwise sequence comparison, employs a modular out-of-core strategy that leverages secondary storage, and incorporates measures to minimize redundant calculations and optimize input/output operations for operation across standard, high-performance, and cloud-based platforms.