Understanding the evolution of phenotypical characters in the Micarea prasina group (Pilocarpaceae) and descriptions of six new species within the group

Show full item record



Permalink

http://hdl.handle.net/10138/304636

Citation

Guzow-Krzeminska , B , Serusiaux , E , van den Boom , P P G , Brand , A M , Launis , A , Lubek , A & Kukwa , M 2019 , ' Understanding the evolution of phenotypical characters in the Micarea prasina group (Pilocarpaceae) and descriptions of six new species within the group ' , MycoKeys , no. 57 , pp. 1-30 . https://doi.org/10.3897/mycokeys.57.33267

Title: Understanding the evolution of phenotypical characters in the Micarea prasina group (Pilocarpaceae) and descriptions of six new species within the group
Author: Guzow-Krzeminska, Beata; Serusiaux, Emmanuel; van den Boom, Pieter P. G.; Brand, A. Maarten; Launis, Annina; Lubek, Anna; Kukwa, Martin
Contributor: University of Helsinki, Botany
Date: 2019-07-31
Language: eng
Number of pages: 30
Belongs to series: MycoKeys
ISSN: 1314-4057
URI: http://hdl.handle.net/10138/304636
Abstract: Six new Micarea species are described from Europe. Phylogenetic analyses, based on three loci, i.e. mtSSU rDNA, Mcm7 and ITS rDNA and ancestral state reconstructions, were used to evaluate infra-group divisions and the role of secondary metabolites and selected morphological characters on the taxonomy in the M. prasina group. Two main lineages were found within the group. The Micarea micrococca clade consists of twelve species, including the long-known M. micrococca and the newly described M. microsorediata, M. nignz and M. pauli. Within this Glade, most species produce methoxymicareic acid, with the exceptions of M. levicula and M. viaikprosa producing gyrophoric acid. The M. prasina dade includes the newly described M. azorica closely related to M. prasina s.str., M. aeruginoprusina sp. nov. and M. isidiopnzsina sp. nov. The species within this Glade are characterised by the production of micareic acid, with the exception of M. herbarum which lacks any detectable substances and M. subviridescens that produces prasinic acid. Based on our reconstructions, it was concluded that the ancestor of the M. prasina group probably had a thallus consisting of goniocysts, which were lost several times during evolution, while isidia and soredia evolved independently at multiple times. Our research supported the view that the ancestor of M. prasina group did not produce any secondary substances, but they were gained independently in different lineages, such as methoxymicareic acid which is restricted to M. micrococca and allied species or micareic acid present in the M. prasina clade.
Subject: Ancestral state reconstruction
lichenised fungi
morphology
mtSSU rDNA
secondary metabolites
taxonomy
MORPHOLOGICAL CHARACTERS
LICHENIZED ASCOMYCOTA
PCR PRIMERS
LEPRARIA LECANORALES
SEQUENCE ALIGNMENT
RAIN-FOREST
SP NOV.
PARMELIACEAE
RDNA
DNA
1181 Ecology, evolutionary biology
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
MC_article_33267_en_2.pdf 3.436Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record