iLoci

iLoci parses annotated genome assemblies into interval loci (iLoci) to provide a stable, coordinate-centric framework for computing locus-level statistics and assessing genome organization and annotation changes.


Key Features:

  • Alternative Coordinate System: Provides a coordinate system of iLoci that remains stable across assembly and annotation version changes.
  • Locus-level Statistical Assessment: Computes statistics on iLoci to quantify genome content, completeness, and annotation accuracy.
  • Genome Compactness Measure: Implements a defined metric for relative genome compactness to quantify genome structure.
  • Gene Arrangement Analysis: Derives genome-wide characteristics of gene arrangements from iLocus statistics.
  • Persistent and Species-specific Statistics: Produces persistent and species-specific genome statistics to accommodate frequent assembly and annotation updates.
  • Gene-structure-model-centric Coordinate Storage: Uses a gene-structure-model-centric coordinate system to store and track updates in assemblies or annotations.

Scientific Applications:

  • Genome Organization Studies: Enables large-scale, computational detection of species- and clade-specific patterns in genome organization using iLocus analyses.
  • Comparative Genomics: Maintains consistent locus coordinates across versions to support comparative analyses of genomes and annotations.
  • Genomic Quality Control: Provides locus-level statistics for rigorous quality control of genome assemblies and annotations.

Methodology:

Parses annotated genome assemblies into interval loci; computes locus-level statistics on iLoci; derives a relative genome compactness metric; generates persistent and species-specific statistics; and maps assembly or annotation updates via a gene-structure-model-centric coordinate system.

Topics

Details

License:
ISC
Cost:
Free of charge
Tool Type:
command-line tool
Operating Systems:
Mac, Linux, Windows
Programming Languages:
C, Python
Added:
4/30/2022
Last Updated:
4/30/2022

Operations

Publications

Standage DS, Lai T, Brendel VP. iLoci: robust evaluation of genome content and organization for provisional and mature genome assemblies. NAR Genomics and Bioinformatics. 2022;4(1). doi:10.1093/nargab/lqac013. PMID:35211671. PMCID:PMC8862717.

Documentation

Links