Cimex lectularius (Bed bug, Harlan) (Clec_2.0)

Cimex lectularius (Bed bug, Harlan) Assembly and Gene Annotation

The Cimex lectularius data and its display on Ensembl Genomes are made possible through a joint effort by the Ensembl Genomes group and VectorBase, a component of VEuPathDB.

The assembly name may not match that from INSDC due to additional community contributions applied by VEuPathDB to the initial INSDC assembly (recorded by the assembly accession).

About Cimex lectularius

Cimex lectularius, the common bedbug, is a parasitic insect feeding preferentially on human blood. Cimex is cosmopolitan, found throughout the world in association with human populations. Cimex is not thought to be a vector although recent studies have shown that it can transmit Trypanosoma cruzi, the pathogen for Chagas disease in mice.

Harlan strain

Strain chosen for genome sequence. Fort Dix colony established and maintained in culture in Harold Harlan's lab since 1973. Sequenced material was produced from animals after five generations of single pair matings.

Sources: * VectorBase * NCBI BioSample SAMN02649412 * BCM-HGSC Bed Bug Genome Project

Picture credit: AJC1, UK
Creative Commons Attribution 2.0 via Wikimedia Commons (Image source)

Clec_2.0 assembly

Submitted by The i5K Pilot Project.


The annotations in Ensembl Metazoa is the NCBI Cimex lectularius Annotation Release 101.


  1. Unique features of a global human ectoparasite identified through sequencing of the bed bug genome.
    Benoit JB, Adelman ZN, Reinhardt K, Dolan A, Poelchau M, Jennings EC, Szuter EM, Hagan RW, Gujar H, Shukla JN et al. 2016. Nat Commun.. 7

Picture credit:



AssemblyClec_2.0, INSDC Assembly GCA_000648675.3,
Database version111.2
Golden Path Length510,848,842
Genebuild byNCBI
Genebuild methodImport
Data sourceBaylor i5k Initiative Pilot Project

Gene counts

Coding genes11,949
Non coding genes2,479
Small non coding genes1,351
Long non coding genes1,125
Misc non coding genes3
Gene transcripts28,065