FlowSim

FlowSim simulates 454 pyrosequencing flow values and generates synthetic read datasets from input DNA sequences to model pyrosequencing signal characteristics and sequencing errors for experimental planning and benchmarking.

Key Features:

• Realistic Data Simulation: Generates pyrosequencing data files from input DNA sequences that mimic raw 454 signal characteristics.
• Empirical flow-value modeling: Derives empirical distributions for flow values from raw 454 pyrosequencing data to reproduce flowgram statistics.
• Error Simulation: Models sequencing errors including homopolymer length inaccuracies and other errors originating from sequencing stages.
• Adaptability to other sequencing technologies: Extends the simulation approach to represent non-454 sequencing technologies.
• High-throughput dataset simulation: Supports generation of large-scale simulated datasets for population genomics and benchmarking.

Scientific Applications:

• Sequencing Project Planning: Allows simulation of experiments to assess the impact of parameters such as sequence length on whole-genome assemblies.
• Benchmarking Assembly Methods: Provides controlled simulated datasets for evaluating de novo assembly and other analysis methods.
• Population Genomics Studies: Enables simulation of high-throughput sequencing datasets for ecological and evolutionary analyses using large-scale genetic data.

Methodology:

Generates synthetic pyrosequencing reads from input DNA sequences, derives empirical distributions for flow values from raw 454 pyrosequencing data, and simulates homopolymer length inaccuracies alongside other sequencing-stage errors.