New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity

The genus Lactocollybia (incertae sedis, Agaricales) is a small and relatively understudied group of mushrooms, exhibiting unique morphological and ecological characteristics. Most species have a saprobic lifestyle, distributed in tropical to subtropical regions. Currently, the phylogenetic relation...

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Main Authors: Ishika Bera, Komsit Wisitrassameewong, Naritsada Thongklang
Format: Article
Language:English
Published: Pensoft Publishers 2025-06-01
Series:MycoKeys
Online Access:https://mycokeys.pensoft.net/article/144986/download/pdf/
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author Ishika Bera
Komsit Wisitrassameewong
Naritsada Thongklang
author_facet Ishika Bera
Komsit Wisitrassameewong
Naritsada Thongklang
author_sort Ishika Bera
collection DOAJ
description The genus Lactocollybia (incertae sedis, Agaricales) is a small and relatively understudied group of mushrooms, exhibiting unique morphological and ecological characteristics. Most species have a saprobic lifestyle, distributed in tropical to subtropical regions. Currently, the phylogenetic relationships of species remain poorly understood due to insufficient DNA sequence data of existing species. This study is an integrative approach, combining morphological characteristics and molecular analyses using nrITS and two-locus (nrITS-nrLSU) phylogenetic estimation. For the latter, we tested phylogenetic lineages of publicly available nrITS sequences and six samples from Thailand. Our phylogenies have revealed that Thai samples are placed in three phylogenetic clades, in which one of them is proposed as a new species, L. polyhabitata, whereas L. variicystis is reported for the first time from Thailand, suggesting a broader distribution of this species in the tropical region. Another species, L. cf. epia, has been critically analyzed for its affinity towards L. epia. All studied species are placed in phylogenetic clades with a multitude of collections from different continents, which suggests the evidence of intercontinental conspecificity across tropical and subtropical regions.
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institution Kabale University
issn 1314-4049
language English
publishDate 2025-06-01
publisher Pensoft Publishers
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spelling doaj-art-33b3ded98bb346e9a6ff787ceafdd14a2025-08-20T03:45:28ZengPensoft PublishersMycoKeys1314-40492025-06-0111831334410.3897/mycokeys.118.144986144986New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificityIshika Bera0Komsit Wisitrassameewong1Naritsada Thongklang2Mae Fah Luang UniversityMahidol UniversityMae Fah Luang UniversityThe genus Lactocollybia (incertae sedis, Agaricales) is a small and relatively understudied group of mushrooms, exhibiting unique morphological and ecological characteristics. Most species have a saprobic lifestyle, distributed in tropical to subtropical regions. Currently, the phylogenetic relationships of species remain poorly understood due to insufficient DNA sequence data of existing species. This study is an integrative approach, combining morphological characteristics and molecular analyses using nrITS and two-locus (nrITS-nrLSU) phylogenetic estimation. For the latter, we tested phylogenetic lineages of publicly available nrITS sequences and six samples from Thailand. Our phylogenies have revealed that Thai samples are placed in three phylogenetic clades, in which one of them is proposed as a new species, L. polyhabitata, whereas L. variicystis is reported for the first time from Thailand, suggesting a broader distribution of this species in the tropical region. Another species, L. cf. epia, has been critically analyzed for its affinity towards L. epia. All studied species are placed in phylogenetic clades with a multitude of collections from different continents, which suggests the evidence of intercontinental conspecificity across tropical and subtropical regions.https://mycokeys.pensoft.net/article/144986/download/pdf/
spellingShingle Ishika Bera
Komsit Wisitrassameewong
Naritsada Thongklang
New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity
MycoKeys
title New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity
title_full New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity
title_fullStr New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity
title_full_unstemmed New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity
title_short New insights into Lactocollybia (Agaricales, Basidiomycota): Morpho-phylogenetic analyses revealing two interesting species and one new record from Thailand and evidence of intercontinental conspecificity
title_sort new insights into lactocollybia agaricales basidiomycota morpho phylogenetic analyses revealing two interesting species and one new record from thailand and evidence of intercontinental conspecificity
url https://mycokeys.pensoft.net/article/144986/download/pdf/
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AT komsitwisitrassameewong newinsightsintolactocollybiaagaricalesbasidiomycotamorphophylogeneticanalysesrevealingtwointerestingspeciesandonenewrecordfromthailandandevidenceofintercontinentalconspecificity
AT naritsadathongklang newinsightsintolactocollybiaagaricalesbasidiomycotamorphophylogeneticanalysesrevealingtwointerestingspeciesandonenewrecordfromthailandandevidenceofintercontinentalconspecificity