Contribution

A molecular systematic contribution to the position of Amphidium Schimp. (Rhabdoweisiaceae, Bryopsida)

Stech, Michael

Nova Hedwigia Band 68 Heft 3-4 (1999), p. 291 - 300

23 références bibliographiques

publié: Jun 2, 1999

DOI: 10.1127/nova.hedwigia/68/1999/291

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ArtNo. ESP050006803001, Prix: 29.00 €

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Abstract

In a molecular approach to resolve the systematic position of the genus Amphidium cpDNA trnLUAA 3'exon -trnFGAA intergenic spacer sequences of two species of Amphidium and 23 other species of Dicranales, Grimmiales, Orthotrichales and Hypnales were determined. A molecular systematic tree constructed according to the maximum parsimony principle shows that the haplolepideous species of Dicranales and Grimmiales are clearly separated from the diplolepideous species of Orthotrichales and Hypnales. Amphidium with no doubt belongs to the Haplolepideae and is not related to the genus Zygodon in the Orthotrichales. A close relationship between Amphidium and Rhabdoweisia is also not indicated. Combining the molecular data and nonmolecular characters, especially costa structure and leaf cell net, illustrated with SEM and light microscopic photos, it is proposed to re-establish the family Rhabdoweisiaceae Limpr., including Oncophorus and Amphidium.

Mots-clefs

Amphidium • Rhabdoweisiaceae • systematic position • non-coding chloroplast DNA • trnL_UAA intron • trnL_UAA 3'exon -trnF_GAA intergenic spacer