WormBase ParaSite HomeVersion: WBPS16 (WS279)

Caenorhabditis remanei

BioProject PRJNA577507 | Data Source University of Oregon | Taxonomy ID 31234

About Caenorhabditis remanei

Caenorhabditis remanei is a small, free-living roundworm found in decaying plant material especially compost, mushroom beds in Northern temperate regions. The worms feed on the bacteria and other micro-organisms associated with plant decay. The biology of C. remanei is similar to that of C. elegans, with a short generation time through four larval stages into an adult. C.remanei has both male and female adults unlike the hermaphroditic species such as C. elegans and C. briggsae. All three species are often found at the same site. C. remanei is frequently found associated with snails, slugs, millipedes, mites and pill bugs, which are presumed to transport worms, especially the dormant dauer stage, from one location to another, as with other Caenorhabditids.

There are 3 alternative genome projects for Caenorhabditis remanei available in WormBase ParaSite: PRJNA248909 PRJNA248911 PRJNA53967

Genome Assembly & Annotation


This is a chromosome-level genome assembly of the C. remanei PX506 inbred strain created from a wild isolate from an isopod collected in a forest near Toronto (Canada). The primary contigs were generated from two PacBio single-molecule real-time (SMRT) Cells using the FALCON assembler and the final scaffolds were constructed with Dovetail Genomics Hi-C library sequences and the HiRise software pipeline, as described by Teterina et al., 2020.


The gene set presented here was generated with a custom pipeline described in Teterina et al., 2020.

Assembly Statistics

AssemblyCRPX506, GCA_010183535.1
Database VersionWBPS16
Genome Size130,480,874
Data SourceUniversity of Oregon
Annotation Version2021-04-WormBase

Gene counts

Coding genes26,308
Non coding genes24
Small non coding genes24
Gene transcripts26,332

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About this species