A phylogenetic study of the<i>Micarea prasina</i>group shows that<i>Micarea micrococca</i>includes three distinct lineages

Czarnota, Paweł; Guzow-Krzemińska, Beata

doi:10.1017/s0024282909990211

Cited by 46 publications

(95 citation statements)

References 32 publications

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“…Phylogenetic inferences from mtSSU sequences position M. herbarum in an unsupported clade within the strongly supported M. prasina group, together with both lineages referred to as M. prasina and M. nowakii, a species described from Poland (Czarnota 2007 The position of the two accessions of M. herbarum in our phylogenetic tree points to a relationship between M. herbarum and M. nowakii, or even that M. herbarum cannot be distinguished from M. nowakii. Among the mtSSU sequences published by Czarnota & Guzow-Krzemińska (2010) for M. nowakii, one accession (Poland, P. Czarnota 4634, GPN) is resolved with strong support as closely related to M. herbarum. We found that this collection represents M. herbarum (no micareic acid detected by TLC); a further collection (Poland, P. Czarnota 3464, GPN) might represent either a further species in that group, or a variant of M. herbarum.…”

Section: Resultsmentioning

confidence: 96%

Two new species in theMicarea prasinagroup from Western Europe

et al. 2017

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Detailed morphological and anatomical studies informed by molecular inferences with mtSSU as a marker revealed two new species of Micarea in Western Europe, both belonging to the core group of the genus, namely the M. prasina group: M. herbarum from the Netherlands and Poland and M. meridionalis from Portugal and Italy. Micarea herbarum looks like a small or depauperate M. denigrata but clearly differs by the lack of gyrophoric acid, while M. meridionalis is distinguished by its granular thallus and the production of micareic acid.

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Section: Resultsmentioning

confidence: 96%

Two new species in theMicarea prasinagroup from Western Europe

et al. 2017

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“…In many cases, the discovery of cryptic lineages leads to discovery of other subtle, previously unknown characters that characterize those lineages. Such characters may include differences in ecology, chemistry, physiology, microstructures, biogeography, or even a combination of these traits (Arup and Åkelius 2009;Czarnota and Guzow-Krzemińska 2010;Lendemer 2011;Parnmen et al 2012;Pillon et al 2014;Vondrák et al 2009;Yost et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Hidden diversity in the morphologically variable script lichen (Graphis scripta) complex (Ascomycota, Ostropales, Graphidaceae)

Kraichak

Lücking

Aptroot³

et al. 2015

Org Divers Evol

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Graphis scripta, or script lichen, is a well-known species of crustose lichenized fungi, widely distributed in the temperate region of the Northern Hemisphere. It is now considered to be a species complex, but because of the lack of secondary chemistry and paucity of measurable morphological characters, species delimitation within the complex has been challenging and is thus far based on apothecium and ascospore morphology. In this study, we employed molecular as well as morphological data to assess phylogenetic structure and delimitation of lineages within the G. scripta complex. We generated sequences for four genetic markers (mtSSU, nuLSU, RPB2, and EF-1) and performed phylogenetic analyses. The resulting trees were used to determine the number of distinct lineages by applying a general mixed Yule-coalescent (GMYC) model and species tree estimation through maximum likelihood (STEM). Our analyses suggest between six and seven putative species within the G. scripta complex. However, these did not correspond to the taxa that were recently distinguished based on apothecium morphology and could not be circumscribed with the morphological characters that were traditionally used in the classification of the complex. Any formal taxonomic treatment will require additional sampling and evaluation of additional traits that potentially can characterize these clades.

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“…Distribution in Fennoscandia and Baltic countries: Norway, Sweden, Finland (Nordin et al, 2011), Lithuania (Motiejūnaitė, 1999). Differs from other species by black stalked pycnidia with walls dull greenish to olive-brown in squash preparation, K-or K+ green intensifying (Coppins, 1983;Czarnota, 2007 (Nordin et al, 2011), Estonia, Lithuania (Czarnota, Guzow-Krzemińska, 2010). Thalli contain methoxymicareic acid.…”

Section: Methodsmentioning

confidence: 99%