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WormBase ParaSite HomeVersion: WBPS19 (WS291)-  Archive: WBPS18

Strongylus vulgaris

BioProject PRJEB531 | Data Source Wellcome Sanger Institute | Taxonomy ID 40348

About Strongylus vulgaris

The nematode Strongylus vulgaris, or equine bloodworm, is a parasite that primarily affects horses and donkeys. It has worldwide distribution, wherever there are grassland and temperate environment and causes verminous arteritis and was a very common cause of colic in horses.

Genome Assembly & Annotation


The draft genome assembly was produced by the Parasite Genomic group at the Wellcome Trust Sanger Institute, in collaboration with Jane Hodgkinson (University of Liverpool) 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.


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.

Key Publications

Assembly Statistics

AssemblyS_vulgaris_Kentucky_0011_upd, GCA_900624965.1
Database VersionWBPS19
Genome Size291,096,078
Data SourceWellcome Sanger Institute
Annotation Version2019-01-WormBase

Gene counts

Coding genes21,071
Gene transcripts21,079

Learn more about this widget in our help section

This widget has been derived from the assembly-stats code developed by the Lepbase project at the University of Edinburgh