GROUP I INTRON VERSUS ITS SEQUENCES IN PHYLOGENY OF CETRARIOID LICHENS |
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| Institution: | 1. Chaire C2M, LTCI, Télécom Paris, Palaiseau 91120, France;2. Université Paris-Saclay, CNRS, CentraleSupélec, Laboratoire des signaux et systèmes, Gif-sur-Yvette 91190, France;3. ETH Zürich, Chair of Risk, Safety and Uncertainty Quantification, Stefano-Franscini-Platz 5, Zürich 8093, Switzerland;1. Department of Mathematics, Universidad del Valle, Calle 13 No. 100-00, Cali 760032, Colombia;2. Department of Applied Mathematics, University Kyung Hee, 1732 Deokyoungdaero, Giheung-gu,Yongin-si, Gyeonggi-do 446-701, Republic of Korea |
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| Abstract: | Abstract: 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 theParmeliaceae according to both group I intron and ITS sequences. |
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