RGAAT

RGAAT constructs reference-based consensus genomes, detects sequence variants, transfers and updates genome annotations across assemblies or species, and generates coordinate conversions to support comparative genomics and genome version management.

Key Features:

• Resequencing-Based Consensus Building: Constructs consensus genomes from resequencing data and reports precision, specificity, and sensitivity comparable to GATK while surpassing Freebayes and SAMtools in precision and specificity across four DNA-seq datasets.
• Variant Detection: Identifies sequence variants through cross-cultivar and cross-version genomic alignments and incorporates true allele frequency into consensus building to improve variant accuracy compared with GATK and SAMtools/BCFtools.
• Annotation Update and Transfer: Transfers and updates annotation files between genome assemblies, strains, and species, providing more reliable annotation transfer than RATT.
• Coordinate Conversion: Generates coordinate conversion files that map sequence variants between reference and query genomes to align data across different genomic versions or species.
• Genome Modification and Comparison: Supports genome modification and comparative analyses for downstream genomic investigations.

Scientific Applications:

• De novo and Resequencing Projects: Supports de novo genome sequencing and resequencing projects requiring consensus building and variant detection.
• Annotation Maintenance and Transfer: Maintains and transfers version-dependent annotations across assemblies, strains, and species.
• Comparative Genomics and Coordinate Mapping: Enables cross-version and cross-species comparative genomics via coordinate conversion and genome comparison.
• Functional Genomics and Evolutionary Studies: Facilitates variant-based functional genomics and evolutionary biology analyses by providing allele-frequency-aware variant calls and consensus sequences.

Methodology:

Performs resequencing-based consensus sequence building and variant detection using algorithms that incorporate true allele frequencies, conducts cross-cultivar and cross-version genomic alignments, and generates coordinate conversion files.