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Journal of Plant Research

, Volume 107, Issue 3, pp 245–251 | Cite as

Chloroplast DNA variation and the phylogeny ofAsplenium sect.Hymenasplenium (Aspleniaceae) in the New World tropics

  • Noriaki Murakami
  • Barbara A. Schaal
Original Articles

Abstract

Asplenium sect.Hymenasplenium is a well-defined group in Aspleniaceae, distinguished by several morphological and cytological characters. However, interspecific relationships in the section were not clear. In this paper, we report the phylogenetic relationships of 9 Neotropical species of sect.Hymenasplenium determined by chloroplast DNA restriction site variation analyses. From the obtained phylogenetic tree, two major clades: one withA. obtusifolium, A. riparium, A. volubile andA. repandulum and another withA. delitescens, A. ortegae, A. purpurascens, A. laetum andA. hoffmannii were recognized.Asplenium delitescens was shown to have a polyphyletic origin. It was also shown that the epiphytic habit evolved only once in the New World species of sect.Hymenasplenium.

Key words

Aspleniaceae Asplenium sect.Hymenasplenium Chloroplast DNA Evolution Molecular phylogeny New World tropics Restriction site variation analyses 

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Copyright information

© The Botanical Society of Japan 1994

Authors and Affiliations

  • Noriaki Murakami
    • 1
  • Barbara A. Schaal
    • 2
  1. 1.Botanical Gardens, Nikko, Faculty of ScienceUniversity of TokyoNikko, TochigiJapan
  2. 2.Department of Biology-Box 1137Washington UniversitySt. LouisUSA

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