Journal article
Comparative genomics of Eucalyptus and Corymbia reveals low rates of genome structural rearrangement
BMC Genomics, Vol.18, pp.1-13
2017
PMCID: PMC5441008
PMID: 28532390
Abstract
Background: Previous studies suggest genome structure is largely conserved between Eucalyptus species. However, it is unknown if this conservation extends to more divergent eucalypt taxa. We performed comparative genomics between the eucalypt genera Eucalyptus and Corymbia. Our results will facilitate transfer of genomic information between these important taxa and provide further insights into the rate of structural change in tree genomes. Results: We constructed three high density linkage maps for two Corymbia species (Corymbia citriodora subsp. variegata and Corymbia torelliana) which were used to compare genome structure between both species and Eucalyptus grandis. Genome structure was highly conserved between the Corymbia species. However, the comparison of Corymbia and E. grandis suggests large (from 1-13 MB) intra-chromosomal rearrangements have occurred on seven of the 11 chromosomes. Most rearrangements were supported through comparisons of the three independent Corymbia maps to the E. grandis genome sequence, and to other independently constructed Eucalyptus linkage maps. Conclusions: These are the first large scale chromosomal rearrangements discovered between eucalypts. Nonetheless, in the general context of plants, the genomic structure of the two genera was remarkably conserved; adding to a growing body of evidence that conservation of genome structure is common amongst woody angiosperms.
Details
- Title
- Comparative genomics of Eucalyptus and Corymbia reveals low rates of genome structural rearrangement
- Authors
- J B Butler (Author) - University of TasmaniaR E Vaillancourt (Author) - University of TasmaniaBrad M Potts (Author) - University of TasmaniaDavid J Lee (Author) - University of the Sunshine Coast - Faculty of Arts, Business and LawG J King (Author) - Southern Cross UniversityA Baten (Author) - Southern Cross UniversityM Shepherd (Author) - Southern Cross UniversityJules S Freeman (Author) - University of Tasmania
- Publication details
- BMC Genomics, Vol.18, pp.1-13
- Publisher
- BioMed Central Ltd.
- Date published
- 2017
- DOI
- 10.1186/s12864-017-3782-7
- ISSN
- 1471-2164
- PMID
- 28532390; PMC5441008
- Copyright note
- © The Author(s). 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
- Data Availability
- The datasets supporting the conclusions of this article are included within the article (and its additional files). Raw marker data will be provided on request to the corresponding author.
- Grants
- Organisation Unit
- Tropical Forests and People Research Centre; Forest Industries Research Centre; Forest Research Institute
- Language
- English
- Record Identifier
- 99450933402621
- Output Type
- Journal article
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