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Group I intron versus ITS sequences in phylogeny of cetrarioid lichens.

In English

Författare

Summary, in English

Phylogenetic trees based on group I intron sequences and on internal transcribed spacer (ITS) sequences of mycobiont ribosomal genes were calculated and compared. Eight cetrarioid and four non-cetrarioid species of the Parmeliaceae were compared. The phylogeny based on group I intron sequences is partly congruent with the ITS sequence phylogeny. Group I intron sequences are presumably less informative for infragenic studies. The introns have a length of 214–233 nucleotides, and differ at up to 33% of the bases between species. All introns analysed are located between the positions 1516 and 1517 of the fungal 18S ribosomal RNA gene. Cetrarioid lichens form a non-homogeneous group within the Parmeliaceae according to both group I intron and ITS sequences.

Publiceringsår

1999

Språk

Engelska

Sidor

441-449

Publikation/Tidskrift/Serie

Lichenologist

Volym

31

Issue

5

Dokumenttyp

Artikel i tidskrift

Förlag

Cambridge University Press

Ämne

  • Botany

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0024-2829