Three new species of Russulaceae from India based on morphology and molecular phylogeny

Latha, K. P. Deepna; Raj, Kushal; Farook, V. Adnaan; Sharafudheen, Shahina A.; Parambil, Neeraja K.; Manimohan, P.

doi:10.11646/phytotaxa.246.1.5

Cited by 6 publications

(3 citation statements)

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“…So far, pleurotoid Lactifluus species are known in three Lactifluus subgenera: Lactariopsis, Gymnocarpi, and Lactifluus. While pleurotoid species are reported from all continents except Europe [11,41,[63][64][65][66][67][68], they have thus far not been observed in Korea. Previous studies show that the pleurotoid basidiomata has multiple evolutionary origins [65,66].…”

Section: Discussionmentioning

confidence: 99%

Taxonomic Revision of the GenusLactifluus(Russulales, Basidiomycota) of South Korea

et al. 2021

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Lactifluus (Pers.) Roussel is an ectomycorrhizal genus that was recently recognized to be distinct from the genus Lactarius. To date, 226 Lactifluus species have been reported worldwide. Misidentification of Lactifluus species is common because of intraspecific morphological variation, cryptic diversity, and the limited number of taxonomic keys available. Molecular data are indispensable for species delimitation; a multilocus phylogenetic analysis showed that most Asian Lactifluus species are not conspecific with morphologically similar species present on other continents. In particular, Korea has misused European and North American Lactifluus names. In this study, we evaluated the taxonomy of Lactifluus in Korea using both morphological and multilocus molecular (ITS, nrLSU, rpb1, and rpb2) data. We examined 199 Lactifluus specimens collected between 1980 and 2016, and a total of 24 species across the four Lactifluus subgenera were identified. All Korean species are distinct and clearly separated from European and North American species. Five taxa corresponded to previously described species from Asia and the remaining 19 taxa are confirmed as new species. Herein, we provide keys to the Korean Lactifluus species within their subgenera, molecular phylogenies, a summary of diversity, and detailed description of the new species.

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Section: Discussionmentioning

confidence: 99%

Taxonomic Revision of the GenusLactifluus(Russulales, Basidiomycota) of South Korea

et al. 2021

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“…In Lactifluus section Gerardii the majority of species have a brown stipe and pileus contrasting with white mostly distant lamellae, reticulate spore ornamentation < 2 μm high, a palisade pileipellis structure, and are generally lacking in macrocystidia ( Stubbe et al 2010 , De Crop et al 2017 , 2018 ). The basidiomes can also be small, white and pleurotoid, with thick-walled terminal elements in the pileipellis ( Stubbe et al 2012 , Latha et al 2016 , De Crop et al 2018 ). Several of the agaricoid and pleurotoid taxa have latex that changes colour on exposure, however this is not the case for Lf.…”

Section: Discussionmentioning

confidence: 99%

Three independent evolutionary events of sequestrate Lactifluus species in Australasia

Lebel

Cooper

Castellano

et al. 2021

Fungal Systematics and Evolution

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Three Australian species with sequestrate basidiome forms are recorded for the first time in the genus Lactifluus based on nuclear ITS-LSU and morphological data. These species represent three rare independent evolutionary events resulting in sequestrate basidiomes arising from agaricoid species in three different sections in two subgenera. All three species have highly reduced basidiome forms, and no species with intermediate forms have been found. Lactifluus dendriticus is unique in the genus in having highly branched, dendritic terminal elements in the pileipellis. We provide full descriptions of two species: Zelleromyces dendriticus (= Lactifluus dendriticus comb. nov.) in Lactifluus subg. Lactifluus sect. Gerardii, and Lactifluus geoprofluens sp. nov. in Lf. subg. Lactifluus sect. Lactifluus. A reduced description is provided for the third, Lactifluus sp. prov. KV181 in Lf. subg. Pseudogymnocarpi sect. Pseudogymnocarpi, as it is currently known from a single sequence.

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“…However, the genus also appears to be well-represented in South America, as new species are being discovered since more South American habitats are being explored ( Henkel et al 2000 , Miller et al 2002 , Smith et al 2011 , Sá et al 2013 , Sá & Wartchow 2013 , Crous et al 2017 , Delgat et al 2019 , Delgat et al 2020 , Duque Barbosa et al 2020 ), and the majority of the proposed South American Lactarius species turns out to belong in Lactifluus ( Pegler & Fiard 1979 , Singer et al 1983 , Miller et al 2002 ). Since 2010, 78 new Lactifluus species have been described: 34 from Asia ( Stubbe et al 2012a , Van de Putte et al 2012 , Wang et al 2012 , Wang et al 2015 , Morozova et al 2013 , Latha et al 2016 , Li et al 2016 , Uniyal et al 2016 , Zhang et al 2016 , Das et al 2017 , Hyde et al 2017 , Song et al 2017 , De Crop et al 2018 , Liu et al 2018 , Song et al 2018 , Bera & Das 2019 , Dierickx et al 2019a , b , Phookamsak et al 2019 ), 16 from Africa ( De Crop et al 2012 , Maba et al 2014 , Maba et al 2015a , b , De Crop et al 2016a, b , De Crop et al 2019 , Delgat et al 2017 , De Lange et al 2018 ), 20 from the Neotropics ( Miller et al 2012 , Montoya et al 2012 , Sá et al 2013 , Sá &...…”

Section: The Genus Lactifluusmentioning

confidence: 99%

A short story of nearly everything in Lactifluus (Russulaceae)

Crop¹,

Delgat²,

Nuytinck³

et al. 2021

Fungal Systematics and Evolution

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Fungi are a large and hyper-diverse group with major taxa present in every ecosystem on earth. However, compared to other eukaryotic organisms, their diversity is largely understudied. Since the rise of molecular techniques, new lineages are being discovered at an increasing rate, but many are not accurately characterised. Access to comprehensive and reliable taxonomic information of organisms is fundamental for research in different disciplines exploring a variety of questions. A globally dominant ectomycorrhizal (ECM) fungal family in terrestrial ecosystems is the Russulaceae (Russulales, Basidiomycota) family. Amongst the mainly agaricoid Russulaceae genera, the ectomycorrhizal genus Lactifluus was historically least studied due to its largely tropical distribution in many underexplored areas and the apparent occurrence of several species complexes. Due to increased studies in the tropics, with a focus on this genus, knowledge on Lactifluus grew. We demonstrate here that Lactifluus is now one of the best-known ECM genera. This paper aims to provide a thorough overview of the current knowledge of Lactifluus, with information on diversity, distribution, ecology, phylogeny, taxonomy, morphology, and ethnomycological uses of species in this genus. This is a result of our larger study, aimed at building a comprehensive and complete dataset or taxonomic framework for Lactifluus, based on molecular, morphological, biogeographical, and taxonomical data as a tool and reference for other researchers.

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Three new species of Russulaceae from India based on morphology and molecular phylogeny

Cited by 6 publications

References 0 publications

Taxonomic Revision of the GenusLactifluus(Russulales, Basidiomycota) of South Korea

Taxonomic Revision of the GenusLactifluus(Russulales, Basidiomycota) of South Korea

Three independent evolutionary events of sequestrate Lactifluus species in Australasia

A short story of nearly everything in Lactifluus (Russulaceae)

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