Acta Phytotaxonomica et Geobotanica
Online ISSN : 2189-7042
Print ISSN : 1346-7565
Molecular Phylogeny of the Lady Fern Genus Athyrium in Japan Based on Chloroplast rbcL and trnL-trnF Sequences
BAYU ADJIEMASAYUKI TAKAMIYAMICHIHITO OHTATAKESHI A. OHSAWAYASUYUKI WATANO
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2008 Volume 59 Issue 2 Pages 79-95

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Abstract

Phylogenetic relationships in Athyrium and Cornopteris were deduced from two chloroplast DNA fragments, rbcL and trnL 5'exon-trnF, of 32 species, 2 varieties, 3 putative hybrids of Athyrium, three taxa of Cornopteris, and five outgroups. Athyrium is paraphyletic, and the Athyrium-Cornopteris complex comprises five clades. Clade I, the most basal, comprises A. niponicum, A. (=Anisocampium) sheareri, and A. (=Kuniwatsukia) cuspidatum. Clade II includes A. distentifolium and Cornopteris. All species of clades III and IV are diploids, while most species of Glade V are polyploids. The parentage of the putative hybrids and of species of hybrid origin were also suggested. The results were compared to previous major classifications based on morphology.

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© 2008 The Japanese Society for Plant Systematics
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