Tedna

Tedna assembles transposable elements de novo from raw Illumina paired-end sequencing reads to recover full-length TE sequences for genomic and evolutionary analyses.

Key Features:

• Direct assembly from reads: Performs de novo assembly of transposable elements directly from raw sequencing reads without intermediate reference-based steps.
• Illumina paired-end compatibility: Optimized to use Illumina paired-end reads as input for TE reconstruction.
• Full-length TE reconstruction: Leverages paired-end information to reconstruct complete transposable element sequences.
• Implementation and resource efficiency: Implemented in C++11 and designed to operate with limited RAM while scaling to larger memory when available.
• Parallelization: Parallelized codebase for processing large datasets and deployment on high-performance computing environments.
• Dependency: Requires the Sparsehash package.

Scientific Applications:

• Genetic diversity and adaptation studies: Enables analysis of TE contributions to genetic diversity and adaptive variation.
• Evolutionary genomics: Supports investigation of evolutionary processes mediated by transposable elements.
• TE composition and distribution analysis: Facilitates characterization of TE content, structure, and genomic distribution.
• Analyses of TE-rich genomes: Improves assembly and coverage of organisms with high proportions of transposable elements where traditional assemblers may fail.

Methodology:

Performs de novo assembly of transposable elements directly from raw reads using paired-end information; implemented in C++11, parallelized, and dependent on the Sparsehash package.