Genome of Tropical Bed Bug Cimex Hemipterus (Cimicidae, Hemiptera) Reveals Tetraspanin Expanded in Bed Bug Ancestor

Overview

Journal Insect Sci

Specialty Biology

Date 2024 Jun 3

PMID 38830803

Authors

Sean Tsz Sum Law

Wenyan Nong

Chade Li

Tze Kiu Chong

Ho Yin Yip

Thomas Swale

Siu Wai Chiu

Roger Yat-Nork Chung

Hon-Ming Lam

Samuel Y S Wong

Hung Wong

Jerome H L Hui

Affiliations

Soon will be listed here.

Abstract

Cimex species are ectoparasites that exclusively feed on warm-blooded animals such as birds and mammals. Three cimicid species are known to be persistent pests for humans, including the tropical bed bug Cimex hemipterus, common bed bug Cimex lectularius, and Eastern bat bug Leptocimex boueti. To date, genomic information is restricted to the common bed bug C. lectularius, which limits understanding their biology and to provide controls of bed bug infestations. Here, a chromosomal-level genome assembly of C. hemipterus (495 Mb [megabase pairs]) contained on 16 pseudochromosomes (scaffold N50 = 34 Mb), together with 9 messenger RNA and small RNA transcriptomes were obtained. In comparison between hemipteran genomes, we found that the tetraspanin superfamily was expanded in the Cimex ancestor. This study provides the first genome assembly for the tropical bed bug C. hemipterus, and offers an unprecedented opportunity to address questions relating to bed bug infestations, as well as genomic evolution to hemipterans more widely.

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