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

Haemonchus contortus

BioProject PRJNA205202 | Data Source University of Melbourne | Taxonomy ID 6289

About Haemonchus contortus

The nematode Haemonchus contortus, or red stomach worm, wire worm or Barber's pole worm, is an animal endoparasite infecting wild and domesticated ruminants (including sheep and goats) worldwide. It is a very common parasite and one the most pathogenic nematodes of ruminants. Adult worms are attached to abomasal mucosa and feed on the blood. H. contortus is a close relative of the human hookworm species which makes it an important model of parasitic nematode biology that is commonly used for experimental studies.

There is 1 alternative genome project for Haemonchus contortus available in WormBase ParaSite: PRJEB506

Genome Assembly & Annotation


The H. contortus genome was sequenced by the Gasser laboratory at the University of Melbourne, as described by Schwarz et al (2013). The version of the genome represented here is that submitted directly to WormBase in 2013, which is similar to, but not exactly the same as, NCBI assembly GCA_000442195.1, containing 31 additional scaffolds.


The gene predictions were made Cornell University, as described by Schwarz et al (2013). The version represented here is that submitted directly to WormBase in 2013.

Key Publications

Assembly Statistics

StrainH. contortus Australian isolate
Database VersionWBPS19
Genome Size319,640,208
Data SourceUniversity of Melbourne
Annotation Version2014-05-WormBase

Gene counts

Coding genes23,610
Gene transcripts24,942

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