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dc.contributor.author | Roodt, Danielle![]() |
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dc.contributor.author | Lohaus, Rolf![]() |
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dc.contributor.author | Sterck, Lieven![]() |
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dc.contributor.author | Swanepoel, Riaan L.![]() |
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dc.contributor.author | Van de Peer, Yves![]() |
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dc.contributor.author | Mizrachi, Eshchar![]() |
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dc.date.accessioned | 2017-10-30T06:26:09Z | |
dc.date.available | 2017-10-30T06:26:09Z | |
dc.date.issued | 2017-09-08 | |
dc.description.abstract | Contrary to the many whole genome duplication events recorded for angiosperms (flowering plants), whole genome duplications in gymnosperms (non-flowering seed plants) seem to be much rarer. Although ancient whole genome duplications have been reported for most gymnosperm lineages as well, some are still contested and need to be confirmed. For instance, data for ginkgo, but particularly cycads have remained inconclusive so far, likely due to the quality of the data available and flaws in the analysis. We extracted and sequenced RNA from both the cycad Encephalartos natalensis and Ginkgo biloba. This was followed by transcriptome assembly, after which these data were used to build paralog age distributions. Based on these distributions, we identified remnants of an ancient whole genome duplication in both cycads and ginkgo. The most parsimonious explanation would be that this whole genome duplication event was shared between both species and had occurred prior to their divergence, about 300 million years ago. | en_ZA |
dc.description.department | Forestry and Agricultural Biotechnology Institute (FABI) | en_ZA |
dc.description.department | Genetics | en_ZA |
dc.description.librarian | am2017 | en_ZA |
dc.description.sponsorship | The UP Research Development Programme (RDP), the Genomics Research Institute (GRI), Multidisciplinary Research Partnership `Bioinformatics: from nucleotides to networks' Project (no. 01MR0310W) of Ghent University, and funding from the European Union Seventh Framework Programme (FP7/2007-2013) under European Research Council Advanced Grant Agreement 322739 ± DOUBLEUP. | en_ZA |
dc.description.uri | http://www.plosone.org | en_ZA |
dc.identifier.citation | Roodt, D., Lohaus, R., Sterck, L., Swanepoel, R.L., Van de Peer, Y. & Mizrachi, E. (2017) Evidence for an ancient whole genome duplication in the cycad lineage. PLoS ONE 12(9): e0184454. https://DOI. org/ 10.1371/journal.pone.0184454. | en_ZA |
dc.identifier.issn | 1932-6203 (online) | |
dc.identifier.other | 10.1371/journal.pone.0184454 | |
dc.identifier.uri | http://hdl.handle.net/2263/62949 | |
dc.language.iso | en | en_ZA |
dc.publisher | Public Library of Science | en_ZA |
dc.rights | © 2017 Roodt et al. This is an open access article distributed under the terms of the Creative Commons Attribution License. | en_ZA |
dc.subject | Angiosperms | en_ZA |
dc.subject | Gymnosperms | en_ZA |
dc.subject | Genome duplications | en_ZA |
dc.subject | Sequenced RNA | en_ZA |
dc.subject | Origin | en_ZA |
dc.subject | Diversification | en_ZA |
dc.subject | DNA sequence | en_ZA |
dc.subject | Flowering plants | en_ZA |
dc.subject | Divergence times | en_ZA |
dc.subject | Maximum-likelihood | en_ZA |
dc.subject | Molecular evolution | en_ZA |
dc.subject | Seed plants | en_ZA |
dc.subject | Extant gymnosperms | en_ZA |
dc.title | Evidence for an ancient whole genome duplication in the cycad lineage | en_ZA |
dc.type | Article | en_ZA |