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

      Ruprecht, Ulrike; Lumbsch, H. Thorsten; Brunauer, Georg; Green, T.G. Allan; Türk, Roman
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      Diversity of Lecidea 2010.pdf
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      DOI
       10.1017/S0954102010000477
      Link
       journals.cambridge.org
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      Ruprecht, 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.
      Permanent Research Commons link: https://hdl.handle.net/10289/5092
      Abstract
      The 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).
      Date
      2010
      Type
      Journal Article
      Publisher
      Cambridge University Press
      Rights
      Copyright Antarctic Science Ltd 2010
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      • Science and Engineering Papers [3124]
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