Onchocerca ochengi

Genome Assembly & Annotation

Assembly

The draft genome assembly was produced by the Parasite Genomic group at the Wellcome Trust Sanger Institute, in collaboration with Sara Lustigman (New Yourk Blood Center) as part of the 50 Helminth Genomes project. The assembly uses Illumina paired-end sequencing followed by an in-house genome assembly pipeline comprising various steps, including contig assembly, scaffolding, gap-filling and error-correction.

Annotation

The gene predictions were made by the Parasite Genomics group at the Wellcome Trust Sanger Institute and WormBase, as part of the 50 Helminth Genomes project. An in-house pipeline was developed that used MAKER to generate high-quality annotations by integrating evidence from multiple sources: ab initio gene predictions from AUGUSTUS, GeneMark-ES, and SNAP; projected annotation from C. elegans (using GenBlastG) and the taxonomically nearest reference helminth genome (using RATT); and ESTs, mRNAs and proteins from related organisms aligned to the genome using BLAST, with refinement of alignments using Exonerate.

Downloads

• Genomic Sequence (FASTA)
• Hard-masked Genomic Sequence (FASTA)
• Soft-masked Genomic Sequence (FASTA)
• Annotations (GFF3)
• Proteins (FASTA)
• Full-length transcripts (FASTA)
• CDS transcripts (FASTA)

Tools

• Search for sequences in the genome and proteome using BLAST
• Work with lists of data using the WormBase ParaSite BioMart data-mining tool
• Programatically access WormBase ParaSite data using the REST API
• Predict the effects of variants using the Variant Effect Predictor

Key Publications

• International Helminth Genomes Consortium. Comparative genomics of the major parasitic worms. Nat Genet, 2019;51(1):163-174

Resources

• Wolbachia endosymbiont of Onchocerca ochengi at Ensembl Bacteria

Navigation

Genome Browser (JBrowse)

Genome Browser (Ensembl)

Example gene page

Example gene tree