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dc.contributor.authorDodsworth, Steven
dc.contributor.authorChristenhusz, Maarten J.M.
dc.contributor.authorConran, John G.
dc.contributor.authorGuignard, Maite S.
dc.contributor.authorKnapp, Sandra
dc.contributor.authorStruebig, Monika
dc.contributor.authorLeitch, Andrew R.
dc.contributor.authorChase, Mark W.
dc.date.accessioned2021-03-17T13:12:55Z
dc.date.available2021-03-17T13:12:55Z
dc.date.issued2020-05-24
dc.identifier.citationDodsworth S, Christenhusz MJM, Conran JG, Guignard MS, Knapp S, Struebig M, Leitch AR, Chase MW (2020) 'Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae)', Botanical Journal of the Linnean Society, 193 (4), pp.546-559.en_US
dc.identifier.issn0024-4074
dc.identifier.doi10.1093/BOTLINNEAN/BOAA024
dc.identifier.urihttp://hdl.handle.net/10547/624894
dc.description.abstractNicotiana section Suaveolentes is the largest section of Nicotiana and is a monophyletic group of allotetraploid species. Most of the species are endemic to Australia, but three species occur on islands in the South Pacific as far east as French Polynesia and one species is native to Namibia. Here, we present phylogenetic results based on genome skimming, with near-complete taxon sampling and multiple accessions sampled for several species. These represent the first phylogenetic results for the section that include most recognized taxa, using wild-sourced material wherever possible. Despite known chromosome number and genome size changes in the section, there is little divergence in the ribosomal DNA operon (26S, 18.S and 5.8S plus associated spacers) and plastid genomes, with little to no taxonomic signal in plastome phylogenetic results and clear plastid-nuclear discordance. These results contrast with strong morphological differentiation (both floral and vegetative) between most of the core Australian taxa and obvious differences in ecological preferences. Together, these initial results portray Nicotiana section Suaveolentes as experiencing recent and ongoing radiation in the arid zone of Australia.en_US
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.relation.urlhttps://academic.oup.com/botlinnean/article-abstract/193/4/546/5843563en_US
dc.rightsYellow - can archive pre-print (ie pre-refereeing)
dc.subjectdiversificationen_US
dc.subjectincomplete lineage sortingen_US
dc.subjectpolyploidyen_US
dc.subjectgenome skimmingen_US
dc.subjectribosomal DNAen_US
dc.subjectphylogeneticsen_US
dc.subjectlag phaseen_US
dc.subjectplastomeen_US
dc.titleExtensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae)en_US
dc.typeArticleen_US
dc.identifier.journalBotanical Journal of the Linnean Societyen_US
dc.date.updated2021-03-17T13:08:41Z
dc.description.noteover 3m


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