Molecular evidence does not support the current division of Orthotrichum subgenus Gymnoporus

  • Jakub SawickiEmail author
  • Vítězslav Plášek
  • Monika Szczecińska
Original Article


Eight Orthotrichum species of subgenus Gymnoporus were compared using the internally transcribed spacer regions-1 and -2 and the chloroplast trnH-psbA region. A phylogenetic analysis did not reflect the current division of this subgenus into sections Affinia and Leiocarpa. The investigated sequences revealed a close relationship between O. striatum, a typical species of section Leiocarpa and O. affine, a typical species of section Affinia. An easily distinguishable group was formed by samples of the dioecious O. lyellii, placed into section Leiocarpa. A large number of fixed differences between O. lyellii and other species of subgenus Gymnoporus raises doubts concerning its position within this subgenus. No marker mutations enabling to differentiate O. fastigiatum from O. affine have been found. In absence of such mutations for O. affine and O. striatum, the status of O. fastigiatum cannot be determined unambiguously.


Orthotrichum ITS trnH-psbGenetic diversity Molecular taxonomy 


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Jakub Sawicki
    • 1
    Email author
  • Vítězslav Plášek
    • 2
  • Monika Szczecińska
    • 1
  1. 1.Department of Botany and Nature ProtectionUniversity of Warmia and Mazury in OlsztynOlsztynPoland
  2. 2.Department of Biology and EcologyUniversity of OstravaOstravaCzech Republic

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