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Gerdemannia gen. nov., a genus separated from Glomus, and Gerdemanniaceae fam. nov., a new family in the Glomeromycota

Published online by Cambridge University Press:  14 June 2004

Christopher WALKER ,
Janusz BŁASZKOWSKI ,
Daniel SCHWARZOTT  and
Arthur SCHÜßLER
Christopher WALKER
Affiliation:
Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK.
Janusz BŁASZKOWSKI
Affiliation:
Department of Plant Pathology, Academy of Agriculture, Słowackiego 17, PL-71434 Szczecin, Poland.
Daniel SCHWARZOTT
Affiliation:
Institute of Botany, Technische Universität Darmstadt, Schnittspahnstrasse 10, D-64287 Darmstadt, Germany. E-mail: schuessler@bio.tu-darmstadt.de
Arthur SCHÜßLER
Affiliation:
Institute of Botany, Technische Universität Darmstadt, Schnittspahnstrasse 10, D-64287 Darmstadt, Germany. E-mail: schuessler@bio.tu-darmstadt.de
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Abstract

Molecular, morphological, and cytological evidence show that the arbuscular mycorrhizal fungus Glomus scintillans is more closely related to the genera Gigaspora and Scutellospora (Gigasporaceae) than it is to Glomus s. str., and consequently it contributes to the non-monophyly of the genus Glomus. We transfer the species to Gerdemannia gen. nov., with consequent autonymy of an appropriate family, Gerdemanniaceae fam. nov. Small subunit (SSU) rDNA analysis places Gerdemannia in a clade sharing common ancestry with the Gigasporaceae, and therefore within the Diversisporales (Glomeromycota). Glomus dominikii is considered to be conspecific with G. scintillans, and these species are synonymised. Glomus chimonobambusae is also transferred to the new genus as Gerdemannia chimonobambusae comb. nov.

Type
Research Article
Information
Mycological Research , Volume 108 , Issue 6 , June 2004 , pp. 707 - 718
Copyright
© The British Mycological Society 2004

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