Substantial variation in the extent of mitochondrial genome fragmentation among blood-sucking lice of mammals

Haowei Jiang; S C Barker; Renfu Shao

doi:10.1093/gbe/evt094

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Substantial variation in the extent of mitochondrial genome fragmentation among blood-sucking lice of mammals

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Substantial variation in the extent of mitochondrial genome fragmentation among blood-sucking lice of mammals

Haowei Jiang, S C Barker and Renfu Shao

Genome Biology and Evolution, Vol.5(7), pp.1298-1308

2013

DOI: https://doi.org/10.1093/gbe/evt094

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Abstract

mitochondrial genome

genome fragmentation

minichromosome

sucking lice

Blood-sucking lice of humans have extensively fragmented mitochondrial genomes. Human head louse and body louse have their 37 mitochondrial genes on 20 minichromosomes. In human pubic louse, the 34 mitochondrial genes known are on 14 minichromosomes. To understand the process of mt genome fragmentation in the blood-sucking lice of mammals, we sequenced the mt genomes of the domestic pig louse, Haematopinus suis, and the wild pig louse, Haematopinus apri, which diverged from human lice ∼65 million years ago. The 37 mt genes of the pig lice are on nine circular minichromosomes; each minichromosome is 3-4 kb in size. The pig lice have four genes per minichromosome on average, in contrast to two genes per minichromosome in the human lice. One minichromosome of the pig lice has eight genes and is the most gene-rich minichromosome found in the sucking lice. Our results indicate substantial variation in the rate and extent of mt genome fragmentation among different lineages of the sucking lice.

Details

Title: Substantial variation in the extent of mitochondrial genome fragmentation among blood-sucking lice of mammals
Authors: Haowei Jiang (Author) - University of Queensland
S C Barker (Author) - University of Queensland
Renfu Shao (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Genome Biology and Evolution, Vol.5(7), pp.1298-1308
Publisher: Oxford University Press
Date published: 2013
DOI: 10.1093/gbe/evt094
ISSN: 1759-6653
Copyright note: Copyright © The Author(s) 2013. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99449103102621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Evolutionary Biology; Genetics & Heredity

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