Journal article
Evolution of multipartite mitochondrial genomes in the booklice of the genus Liposcelis (Psocoptera)
BMC Genomics, Vol.15, 861
2014
Abstract
Background: The genus Liposcelis (Psocoptera: Troctomorpha) has more than 120 species with a worldwide distribution and they pose a risk for global food security. The organization of mitochondrial (mt) genomes varies between the two species of booklice investigated in the genus Liposcelis. Liposcelis decolor has its mt genes on a single chromosome, like most other insects; L. bostrychophila, however, has a multipartite mt genome with genes on two chromosomes. Results: To understand how multipartite mt genome organization evolved in the genus Liposcelis, we sequenced the mt genomes of L. entomophila and L. paeta in this study. We found that these two species of booklice also have multipartite mt genomes, like L. bostrychophila, with the mt genes we identified on two chromosomes. Numerous pseudo mt genes and non-coding regions were found in the mt genomes of these two booklice, and account for 30% and 10% respectively of the entire length we sequenced. In L. bostrychophila, the mt genes are distributed approximately equally between the two chromosomes. In L. entomophila and L. paeta, however, one mt chromosome has most of the genes we identified whereas the other chromosome has largely pseudogenes and non-coding regions. L. entomophila and L. paeta differ substantially from each other and from L. bostrychophila in gene content and gene arrangement in their mt chromosomes. Conclusions: Our results indicate unusually fast evolution in mt genome organization in the booklice of the genus Liposcelis, and reveal different patterns of mt genome fragmentation among L. bostrychophila, L. entomophila and L. paeta.
Details
- Title
- Evolution of multipartite mitochondrial genomes in the booklice of the genus Liposcelis (Psocoptera)
- Authors
- Shi-Chun Chen (Author) - Southwest University, ChinaDan-Dan Weit (Author) - Southwest University, ChinaRenfu Shao (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringJun-Xia Shi (Author) - Southwest University, ChinaWei Dou (Author) - Southwest University, ChinaJin-Jun Wang (Author) - Southwest University, China
- Publication details
- BMC Genomics, Vol.15, 861; 12
- Publisher
- BioMed Central Ltd.
- Date published
- 2014
- DOI
- 10.1186/1471-2164-15-861
- ISSN
- 1471-2164
- Copyright note
- Copyright © 2014 Chen, etal; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This published version is reproduced in accordance with this policy.
- 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
- 99449031202621
- Output Type
- Journal article
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