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A multi-gene phylogeny of Lactifluus (Basidiomycota, Russulales) translated into a new infrageneric classification of the genus

Eske De Crop UGent, Jorinde Nuytinck UGent, Kobeke Van de Putte, Komsit Wisitrassameewong, Jan Hackel, Dirk Stubbe, Kevin D Hyde, Mélanie Roy, Roy E Halling, Pierre-Arthur Moreau, et al. (2017) PERSOONIA. 38. p.58-80
abstract
Infrageneric relations of the genetically diverse milkcap genus Lactifluus (Russulales, Basidiomycota) are poorly known. Currently used classification systems still largely reflect the traditional, mainly morphological, characters used for infrageneric delimitations of milkcaps. Increased sampling, combined with small-scale molecular studies, show that this genus is underexplored and in need of revision. For this study, we assembled an extensive dataset of the genus Lactifluus, comprising 80 % of all known species and 30 % of the type collections. To unravel the infrageneric relationships within this genus, we combined a multi-gene molecular phylogeny, based on nuclear ITS, LSU, RPB2 and RPB1, with a morphological study, focussing on five important characteristics (fruit body type, presence of a secondary velum, colour reaction of the latex/context, pileipellis type and presence of true cystidia). Lactifluus comprises four supported subgenera, each containing several supported clades. With extensive sampling, ten new clades and at least 17 new species were discovered, which highlight the high diversity in this genus. The traditional infrageneric classification is only partly maintained and nomenclatural changes are proposed. Our morphological study shows that the five featured characteristics are important at different evolutionary levels, but further characteristics need to be studied to find morphological support for each clade. This study paves the way for a more detailed investigation of biogeographical history and character evolution within Lactifluus.
Please use this url to cite or link to this publication:
author
organization
alternative title
Lactifluus phylogeny
year
type
journalArticle (original)
publication status
published
subject
keyword
molecular evolution, milkcaps, morphology, taxonomy
journal title
PERSOONIA
Persoonia
volume
38
pages
58 - 80
ISSN
0031-5850
DOI
10.3767/003158517X693255
language
English
UGent publication?
yes
classification
A1
copyright statement
I have retained and own the full copyright for this publication
id
8079757
handle
http://hdl.handle.net/1854/LU-8079757
date created
2016-09-19 09:18:29
date last changed
2017-08-04 13:01:50
@article{8079757,
  abstract     = {Infrageneric relations of the genetically diverse milkcap genus Lactifluus (Russulales, Basidiomycota) are poorly known. Currently used classification systems still largely reflect the traditional, mainly morphological, characters used for infrageneric delimitations of milkcaps. Increased sampling, combined with small-scale molecular studies, show that this genus is underexplored and in need of revision. For this study, we assembled an extensive dataset of the genus Lactifluus, comprising 80 \% of all known species and 30 \% of the type collections. To unravel the infrageneric relationships within this genus, we combined a multi-gene molecular phylogeny, based on nuclear ITS, LSU, RPB2 and RPB1, with a morphological study, focussing on five important characteristics (fruit body type, presence of a secondary velum, colour reaction of the latex/context, pileipellis type and presence of true cystidia). Lactifluus comprises four supported subgenera, each containing several supported clades. With extensive sampling, ten new clades and at least 17 new species were discovered, which highlight the high diversity in this genus. The traditional infrageneric classification is only partly maintained and nomenclatural changes are proposed. Our morphological study shows that the five featured characteristics are important at different evolutionary levels, but further characteristics need to be studied to find morphological support for each clade. This study paves the way for a more detailed investigation of biogeographical history and character evolution within Lactifluus.},
  author       = {De Crop, Eske and Nuytinck, Jorinde and Van de Putte, Kobeke and Wisitrassameewong, Komsit and Hackel, Jan and Stubbe, Dirk and Hyde, Kevin D and Roy, M{\'e}lanie and Halling, Roy E and Moreau, Pierre-Arthur and Eberhardt, Ursula and Verbeken, Annemieke},
  issn         = {0031-5850},
  journal      = {PERSOONIA},
  keyword      = {molecular evolution,milkcaps,morphology,taxonomy},
  language     = {eng},
  pages        = {58--80},
  title        = {A multi-gene phylogeny of Lactifluus (Basidiomycota, Russulales) translated into a new infrageneric classification of the genus},
  url          = {http://dx.doi.org/10.3767/003158517X693255},
  volume       = {38},
  year         = {2017},
}

Chicago
De Crop, Eske, Jorinde Nuytinck, Kobeke Van de Putte, Komsit Wisitrassameewong, Jan Hackel, Dirk Stubbe, Kevin D Hyde, et al. 2017. “A Multi-gene Phylogeny of Lactifluus (Basidiomycota, Russulales) Translated into a New Infrageneric Classification of the Genus.” Persoonia 38: 58–80.
APA
De Crop, E., Nuytinck, J., Van de Putte, K., Wisitrassameewong, K., Hackel, J., Stubbe, D., Hyde, K. D., et al. (2017). A multi-gene phylogeny of Lactifluus (Basidiomycota, Russulales) translated into a new infrageneric classification of the genus. PERSOONIA, 38, 58–80.
Vancouver
1.
De Crop E, Nuytinck J, Van de Putte K, Wisitrassameewong K, Hackel J, Stubbe D, et al. A multi-gene phylogeny of Lactifluus (Basidiomycota, Russulales) translated into a new infrageneric classification of the genus. PERSOONIA. 2017;38:58–80.
MLA
De Crop, Eske, Jorinde Nuytinck, Kobeke Van de Putte, et al. “A Multi-gene Phylogeny of Lactifluus (Basidiomycota, Russulales) Translated into a New Infrageneric Classification of the Genus.” PERSOONIA 38 (2017): 58–80. Print.