Suzuki Inoue Tsubota 2018

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Suzuki et al. (2018)

  • Suzuki, T., Inoue, Y. & Tsubota, H. 2018. Molecular phylogeny of the genus Fissidens (Fissidentaceae, Bryophyta) and a refinement of the infrageneric classification. Mol. Phylogen. Evol. 127: 190-202.

Abstract

Suzuki, T., Inoue, Y. & Tsubota, H. 2018. Molecular phylogeny of the genus Fissidens (Fissidentaceae, Bryophyta) and a refinement of the infrageneric classification. Mol. Phylogen. Evol. 127: 190-202.

The genus Fissidens (ca. 440 spp.) is one of the phylogenetically poorly studied groups of mosses (Bryophyta). While various classifications of this genus have been proposed, no attempt at a classification of the genus based on combined molecular and morphological evidence has been made. Here, we present for the first time a comprehensive phylogenetic tree consisting of 50 representatives of Fissidens, reconstructed using sequence data from chloroplast rbcL and rps4 genes. Ancestral state reconstructions provide three clear apomorphies within Fissidens: peristome teeth, limbidium and chromosome number. Based on the phylogeny and morphological reassessment, we recognize three subgenera, Pachyfissidens, Neoamblyothallia, and Fissidens. Subgenus Neoamblyothallia consists of two sections: Neoamblyothallia and Crispidium. Subgenus Fissidens consists of five sections: Fissidens, Polypodiopsis, Aloma, Areofissidens, and Semilimbidium. High diversity of the most derived sect. Semilimbidium in the tropics suggests that the evolutionary history of the genus is through adaptation and diversification in tropical regions.

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