Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters

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dc.contributor.authorRuprecht, Ulrike
dc.contributor.authorLumbsch, H. Thorsten
dc.contributor.authorBrunauer, Georg
dc.contributor.authorGreen, T.G. Allan
dc.contributor.authorTürk, Roman
dc.date.accessioned2011-02-23T22:18:45Z
dc.date.available2011-02-23T22:18:45Z
dc.date.issued2010
dc.description.abstractThe diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial SSU rDNA sequences) to test species boundaries within the genus Lecidea. Sampling was done along a north–south transect at five different areas in the Ross Sea region (Cape Hallett, Botany Bay to Mount Suess, Taylor Valley, Darwin Area and Mount Kyffin). A total of 153 specimens were collected from 13 localities. Phylogenetic analyses also include specimens from other regions in Antarctica and non-Antarctic areas. Maximum parsimony, maximum likelihood and Bayesian analyses agreed in placing the samples from continental Antarctica into four major groups. Based on this phylogenetic estimate, we restudied the micromorphology and secondary chemistry of these four clades to evaluate the use of these characters as phylogenetic discriminators. These clades are identified as the following species Lecidea cancriformis, L. andersonii as well as the new species L. polypycnidophora Ruprecht & Türk sp. nov. and another previously unnamed clade of uncertain status, referred to as Lecidea sp. (L. UCR1).en_NZ
dc.format.mimetypeapplication/pdf
dc.identifier.citationRuprecht, U., Lumbsch, H.T., Brunauer, G., Green, T.G.A. & Turk, R. (2010). Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters. Antarctic Science, 22(6), 727-741.en_NZ
dc.identifier.doi10.1017/S0954102010000477en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/5092
dc.language.isoen
dc.publisherCambridge University Pressen_NZ
dc.relation.isPartOfAntarctic Scienceen_NZ
dc.relation.urihttp://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7929580en_NZ
dc.rightsCopyright Antarctic Science Ltd 2010
dc.subjectchemical racesen_NZ
dc.subjectlichensen_NZ
dc.subjectphylogenetic analysisen_NZ
dc.subjectsecondary metabolitesen_NZ
dc.titleDiversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological charactersen_NZ
dc.typeJournal Articleen_NZ
pubs.begin-page727en_NZ
pubs.elements-id35569
pubs.end-page741en_NZ
pubs.issue6en_NZ
pubs.volume22en_NZ
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