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An evolutionary perspective on morphology and ecological characters in the mushroom family Inocybaceae (Agaricomycotina, Fungi)

Journal article
Authors Martin Ryberg
Ellen Larsson
Stig Jacobsson
Published in Molecular Phylogenetics and Evolution
Volume 55
Issue 2
Pages 431-442
ISSN 1055-7903
Publication year 2010
Published at Department of Plant and Environmental Sciences
Pages 431-442
Language en
Links dx.doi.org/10.1016/j.ympev.2010.02....
Keywords 'Inocybe, Auritella, Ancestral state reconstruction, Ecological trait evolution, NUclear ribosomal DNA, Mitochondrial ribosomal DNA'
Subject categories Biological Sciences, Microbiology, Ecology, Other Biological Topics

Abstract

Inocybaceae is one of the larger families among the gilled mushrooms (Agaricales) but their morphologybased taxonomy is still not fully settled considering molecular-based phylogenetic insights. Here we investigate the evolution of five morphological and four ecological characters using ancestral state reconstruction methods. All the morphological characters are correlated with the phylogeny, but we find spore shape and presence of cortina, to have the greatest taxonomic potential, as they are the most evolutionarily conserved. None of the five characters have, however, evolved in a way that easily delimits inclusive monophyletic groups and the section level taxonomy needs revision. Host preference, preference for calcareous soil, and soil nutritional status preference are shown to be reflective of the evolutionary history of the species at the scale investigated here while soil moisture preference is not. The states of three of the four ecological characters can therefore be predicted in a phylogenetic framework for species where they are unknown.

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