Fragmented mitochondrial genomes in two suborders of parasitic lice of eutherian mammals (Anoplura and Rhynchophthirina, Insecta)

Renfu Shao; Stephen C Barker; Hu Li; Simon Song; Shreekanta Poudel; Yuan Su

doi:10.1038/srep17389

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Fragmented mitochondrial genomes in two suborders of parasitic lice of eutherian mammals (Anoplura and Rhynchophthirina, Insecta)

Journal article

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Fragmented mitochondrial genomes in two suborders of parasitic lice of eutherian mammals (Anoplura and Rhynchophthirina, Insecta)

Renfu Shao, Stephen C Barker, Hu Li, Simon Song, Shreekanta Poudel and Yuan Su

Scientific Reports, Vol.5(17389), pp.1-11

2015

DOI: https://doi.org/10.1038/srep17389

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Abstract

mitochondrial genome

genome fragmentation

Parasitic lice (order Phthiraptera) infest birds and mammals. The typical animal mitochondrial (mt) genome organization, which consists of a single chromosome with 37 genes, was found in chewing lice in the suborders Amblycera and Ischnocera. The sucking lice (suborder Anoplura) known, however, have fragmented mt genomes with 9-20 minichromosomes. We sequenced the mt genome of the elephant louse, Haematomyzus elephantis - the first species of chewing lice investigated from the suborder Rhynchophthirina. We identified 33 mt genes in the elephant louse, which were on 10 minichromosomes. Each minichromosome is 3.5-4.2 kb in size and has 2-6 genes. Phylogenetic analyses of mt genome sequences confirm that the elephant louse is more closely related to sucking lice than to the chewing lice in the Amblycera and Ischnocera. Our results indicate that mt genome fragmentation is shared by the suborders Anoplura and Rhynchophthirina. Nine of the 10 mt minichromosomes of the elephant louse differ from those of the sucking lice (Anoplura) known in gene content and gene arrangement, indicating that distinct mt karyotypes have evolved in Anoplura and Rhynchophthirina since they diverged ~92 million years ago.

Details

Title: Fragmented mitochondrial genomes in two suborders of parasitic lice of eutherian mammals (Anoplura and Rhynchophthirina, Insecta)
Authors: Renfu Shao (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Stephen C Barker (Author)
Hu Li (Author)
Simon Song (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Shreekanta Poudel (Author)
Yuan Su (Author)
Publication details: Scientific Reports, Vol.5(17389), pp.1-11
Publisher: Nature Publishing Group
Date published: 2015
DOI: 10.1038/srep17389
ISSN: 2045-2322
Copyright note: Copyright © 2015 The Authors. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Organisation Unit: School of Science and Engineering - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99449124002621
Output Type: Journal article

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