A phylogenetic framework for reassessing generic concepts and species delimitation in the lichenized family<i>Trypetheliaceae</i>(Ascomycota: Dothideomycetes)

Lücking, Robert; Nelsen, Matthew P.; Aptroot, André; Klee, Roselvira Barillas De; Bawingan, Paulina A.; Benatti, Michel Navarro; Bình, Nguyễn Ngọc; Bungartz, Frank; Cáceres, Marcela E. S.; Canêz, Luciana da Silva; Chaves, Jose-Luis; Ertz, Damien; Esquivel, Rhina Esmeralda; Ferraro, Lidia Itati; Grijalva, Alfredo; Gueidan, Cécile; Hernández, Ernesto Sánchez; Knight, Allison; Lumbsch, H. Thorsten; Marcelli, Marcelo Pinto; Mercado‐Díaz, Joel A.; Moncada, Bibiana; Morales, Eduardo A.; Naksuwankul, Khwanruan; Orozco, Thelma; Parnmen, Sittiporn; Plata, Eimy Rivas; Salazar-Allen, Noris; Spielmann, Adriano Afonso; Ventura, Nohemy

doi:10.1017/s0024282916000505

Cited by 30 publications

(99 citation statements)

References 58 publications

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“…This framework is now available (Nelsen et al 2014;Lücking et al 2016a); it shows that morphological variation changes with evolutionary history within the family. The typical and often unique characters of Trypetheliaceae, particularly the astrothelioid ascospores and the thin, net-like hamathecium, often with coarse inspersion, are mostly developed in derived lineages, whereas the more basal lineages are not particularly different from similar, lichenized forms in other, often unrelated orders, such as Monoblastiales, Strigulales and even certain Pyrenulales.…”

Section: Morphology Anatomy and Chemistrymentioning

confidence: 99%

“…. Based on evidence from phylogenetic data (Nelsen et al 2014: Lücking et al 2016a), we consider the presence and location of lichexanthone species-specific. 1, 8-dihydroxy-3, 6-dimethoxyxanthone (coronatone) is less often present; it reacts UV+ orange but might be masked by the present of lichexanthone.…”

Section: Chemistrymentioning

confidence: 99%

“…To check possibly erroneous nomenclatural citations, including those given in Index Fungorum and other similar databases, original protologues of all names were studied. As an extreme example of a revised species concept and nomenclatural treatment, Astrothelium variolosum sensu Harris (1993), which in most other treatments corresponds to the four names Astrothelium confusum, A. variolosum (ostioles lateral, fused, without or with lichexanthone), Trypethelium nitidiusculum and T. ochroleucum (ostioles apical, separate, without or with lichexanthone), is now considered to encompass at least 34 different species (Table 1) which are not necessarily closely related (Lücking et al 2016a). The fact that all of these names were described in the 19th century underlines the importance of critical analysis of historical literature and type specimens to accurately assess the taxonomy and nomenclature of Trypetheliaceae.…”

Section: Species Delimitation and Nomenclaturementioning

confidence: 99%

“…Most were traditionally assigned to this family, but some have been erected here to accommodate species aggregates traditionally assigned to other groups (e.g. Arthopyrenia, Mycomicrothelia) that were found to belong here based on phylogenetic studies (Nelsen et al 2009(Nelsen et al , 2011(Nelsen et al , 2014Lücking et al 2016a). The new genus Constrictolumina is used for species formerly placed in Arthopyrenia, which in its strict sense remains a small, non-lichenized, extratropical genus (Hyde et al 2013), and Novomicrothelia for several species previously classified in Mycomicrothelia, while Bogoriella is reinstated to accommodate most of the former Mycomicrothelia species.…”

Section: Trypetheliaceae Eschwmentioning

confidence: 99%

“…An initial study by Del Prado et al (2006) demonstrated the placement of Trypetheliaceae within Dothideomycetes, and phylogeny of the family was refined through subsequent work by Nelsen et al (2009Nelsen et al ( , 2011Nelsen et al ( , 2014 and Lücking et al (2016a), showing that lichenized species of Arthopyrenia and Mycomicrothelia also belong here, and laying the groundwork for a much revised genus and species concept (Aptroot et al 2013a;Hyde et al 2013;Nelsen et al 2014;Luangsuphabool et al 2016;Lücking et al 2016a). This also stimulated further inventory work in several parts of the tropics, with the discovery of many new taxa Aptroot et al 2013bAptroot et al , 2016aLima et al 2013;Córdova-Chávez et al 2014;Weerakoon & Aptroot 2014;Flakus et al 2016;Luangsuphabool et al 2016;Lücking et al 2016b).…”

Section: Introductionmentioning

confidence: 99%

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A revisionary synopsis of theTrypetheliaceae(Ascomycota:Trypetheliales)

Aptroot¹,

Lücking

2016

The Lichenologist

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A revisionary synopsis is presented for the family Trypetheliaceae, based on a separately published phylogenetic analysis of a large number of species, morpho-anatomical and chemical study of extensive material, and revision of numerous type specimens. A total of 418 species is formally accepted in this synopsis, distributed among 15 genera as follows: Aptrootia (3), Architrypethelium (7), Astrothelium (242), Bathelium (16), Bogoriella (29), Constrictolumina (9), Dictyomeridium (7), Distothelia (3), Marcelaria (3), Nigrovothelium (2), Novomicrothelia (1), Polymeridium (50), Pseudopyrenula (20), Trypethelium (16), and Viridothelium (10). All accepted genera, including new genera described separately in this issue, are keyed out and briefly described and discussed, and keys are provided for all accepted species within each genus. Entries with full synonymy and brief descriptions, and in part also discussions, are provided for all accepted species, except those newly described elsewhere in this issue, which are cross-referenced in the corresponding keys. The description of the newly defined genera takes into account phylogeny in combination with morpho-anatomical features with the result that they are mostly recognizable by a combination of thallus, ascoma and ascospore features. Most species previously assigned to the genera Astrothelium, Campylothelium, Cryptothelium, and Trypethelium, based on a schematic concept of ascoma morphology and ascospore septation, are now included in a single genus, Astrothelium, with highly variable ascoma morphology and ascospore septation but invariably with astrothelioid ascospores (at least when young), that is diamond-shaped lumina, and a welldeveloped, corticate, usually olive-green thallus that often covers the ascomata. While the genera Aptrootia (large, brown, muriform ascospores), Architrypethelium (large, mostly 3-septate ascospores), and Pseudopyrenula (ecorticate, white thalli and astrothelioid ascospores) are maintained, Trypethelium is redefined to include species with raised, pseudostromatic ascomata and multiseptate ascospores with thin septa. The sister group of Trypethelium is the genus Marcelaria, with brightly coloured pseudostromata and muriform ascospores. Bathelium is now limited to species with strongly raised, fully exposed pseudostromata and septate to muriform ascospores with thin septa. Several genera are recognized for more basal lineages with mostly ecorticate, white thalli and solitary, exposed ascomata previously assigned to Arthopyrenia, Mycomicrothelia and Polymeridium, viz. Bogoriella, Constrictolumina, Dictyomeridium, and Novomicrothelia. In addition, separate genera are accepted for the Trypethelium tropicum (Nigrovothelium) and T. virens (Viridothelium) groups. In addition, a refined species concept resulting from phylogenetic studies is employed which pays particular attention to morphological features of the thallus and ascomata. Of a total of 526 names checked, 107 remain synonyms of accepted names and a further eight are newly excl...

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Section: Morphology Anatomy and Chemistrymentioning

confidence: 99%

Section: Chemistrymentioning

confidence: 99%

Section: Species Delimitation and Nomenclaturementioning

confidence: 99%

Section: Trypetheliaceae Eschwmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A revisionary synopsis of theTrypetheliaceae(Ascomycota:Trypetheliales)

Aptroot¹,

Lücking

2016

The Lichenologist

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Extending the fossil record for foliicolous Dothideomycetes: Bleximothyrium ostiolatum gen. et sp. nov., a unique fly‐speck fungus from the Lower Cretaceous of Virginia, USA

Renard

Stockey

Upchurch

et al. 2021

American J of Botany

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Fossils can reveal long-vanished characters that inform inferences about the timing and patterns of diversification of living fungi. Through analyzing well-preserved fossil scutella, shield-like covers of fungal sporocarps, we describe a new taxon of early Dothideomycetes with a combination of characters unknown among extant taxa. METHODS: Macerated clays from the Potomac Group, lower Zone 1, from the Lower Cretaceous (Aptian, 125-113 Ma) of Virginia USA yielded one gymnospermous leaf cuticle colonized by 21 sporocarps of a single fungal morphotype. We inferred a tree from nuclear ribosomal DNA of extant species, and coded morphological characters to evaluate alternative, equally parsimonious placements of the fossil in a molecular constraint tree of extant species. RESULTS: Bleximothyrium ostiolatum gen. et sp. nov. has an ostiolate scutellum of radiate, dichotomizing hyphae. Unlike otherwise similar extant and fossil taxa, B. ostiolatum has tangled hyphae at its scutellum margin. Scutella of B. ostiolatum are connected to superficial mycelium, to intercalary and lateral appressoria, and to extensive subcuticular "mycélium en palmettes". The gymnospermous host has characters consistent with identity as a non-papillate ginkgophyte or cycad. CONCLUSIONS: Bleximothyrium ostiolatum is the oldest known fossil fly-speck fungus that occurs on plant cuticles and has the radiate, ostiolate scutellum known only from Dothideomycetes. Its combination of characters, its scutellum margin, and mycélium en palmettes are unknown in other extant and fossil species, and Bleximothyrium ostiolatum likely represents a new group of fly-speck fungi that may now be extinct.

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Dismantling Marchandiomphalina into Agonimia (Verrucariaceae) and Lawreymyces gen. nov. (Corticiaceae): setting a precedent to the formal recognition of thousands of voucherless fungi based on type sequences

Lücking

Moncada

2017

Fungal Diversity

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A phylogenetic framework for reassessing generic concepts and species delimitation in the lichenized familyTrypetheliaceae(Ascomycota: Dothideomycetes)

Cited by 30 publications

References 58 publications

A revisionary synopsis of theTrypetheliaceae(Ascomycota:Trypetheliales)

A revisionary synopsis of theTrypetheliaceae(Ascomycota:Trypetheliales)

Extending the fossil record for foliicolous Dothideomycetes: Bleximothyrium ostiolatum gen. et sp. nov., a unique fly‐speck fungus from the Lower Cretaceous of Virginia, USA

Dismantling Marchandiomphalina into Agonimia (Verrucariaceae) and Lawreymyces gen. nov. (Corticiaceae): setting a precedent to the formal recognition of thousands of voucherless fungi based on type sequences

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