ibclogo XVI International Botanical Congess

Abstract Number: 5866
Poster No. = 223


MOLECULAR PHYLOGENETIC ANALYSIS ON HYPNALES (MUSCI)


T. Arikawa1 and M. Higuchi. 1Dept. of Biological Sciences, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, Japan, Dept. of Botany, National Science Museum, Tsukuba, Ibaraki, Japan.


Phylogenetic relationships were investigated using nucleotide sequences of the chloroplast genes, rbcL and psaB, for Hypnales,especially for members of the family Plagiotheciaceae and close relatives. Pleurocarpous mosses examined in this study form a monophyletic clade, although its relationships among orders and families are not clear. The results suggest well that the genus Plagiothecium is monophyletic. The establishment of Stereophyllaceae from Plagiotheciaceae by Buck and Ireland (1985) is supported. Isopterygium and Taxiphyllum do not form a monophyletic clade with Plagiothecium. The family Hypnaceae is not monophyletic. Pylaisiella polyantha is not closely related to P. intricata. Pleurozium schreberi is shown to be of hylocomiaceous affinity.

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