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Phylogeny of nematode-trapping fungi based on 18S rDNA sequences

Ahrén, Dag LU orcid ; Ursing, Björn M. LU and Tunlid, Anders LU (1998) In FEMS Microbiology Letters 158(2). p.179-184
Abstract

The small subunit (SSU) ribosomal DNA (18S rDNA) from 15 species of nematode-trapping fungi and closely related non-parasitic species were sequenced. Phylogenetic analysis indicated that species within the genera of Arthrobotrys, Dactylaria, Dactylella, Monacrosporium and Duddingtonia formed a monophyletic and isolated clade among an unresolved cluster of apothecial ascomycetes. The phylogenetic patterns within this clade were not concordant with the morphology of the conidia nor the conidiophores, but rather with that of the infection structures. The results from the different methods of tree reconstruction supported three lineages; the species having constricting rings, the non-parasitic species and the species having various adhesive... (More)

The small subunit (SSU) ribosomal DNA (18S rDNA) from 15 species of nematode-trapping fungi and closely related non-parasitic species were sequenced. Phylogenetic analysis indicated that species within the genera of Arthrobotrys, Dactylaria, Dactylella, Monacrosporium and Duddingtonia formed a monophyletic and isolated clade among an unresolved cluster of apothecial ascomycetes. The phylogenetic patterns within this clade were not concordant with the morphology of the conidia nor the conidiophores, but rather with that of the infection structures. The results from the different methods of tree reconstruction supported three lineages; the species having constricting rings, the non-parasitic species and the species having various adhesive structures (nets, hyphae, knobs and non-constricting rings) to infect nematodes.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Evolution of infection structure, Nematophagous fungus, Phylogeny
in
FEMS Microbiology Letters
volume
158
issue
2
pages
179 - 184
publisher
Oxford University Press
external identifiers
  • scopus:0032518946
  • pmid:9465391
ISSN
0378-1097
DOI
10.1111/j.1574-6968.1998.tb12817.x
language
English
LU publication?
yes
id
cbd04dc8-3a84-4160-b46e-a8d441f8ed38
date added to LUP
2019-10-23 16:59:18
date last changed
2024-03-04 06:39:30
@article{cbd04dc8-3a84-4160-b46e-a8d441f8ed38,
  abstract     = {{<p>The small subunit (SSU) ribosomal DNA (18S rDNA) from 15 species of nematode-trapping fungi and closely related non-parasitic species were sequenced. Phylogenetic analysis indicated that species within the genera of Arthrobotrys, Dactylaria, Dactylella, Monacrosporium and Duddingtonia formed a monophyletic and isolated clade among an unresolved cluster of apothecial ascomycetes. The phylogenetic patterns within this clade were not concordant with the morphology of the conidia nor the conidiophores, but rather with that of the infection structures. The results from the different methods of tree reconstruction supported three lineages; the species having constricting rings, the non-parasitic species and the species having various adhesive structures (nets, hyphae, knobs and non-constricting rings) to infect nematodes.</p>}},
  author       = {{Ahrén, Dag and Ursing, Björn M. and Tunlid, Anders}},
  issn         = {{0378-1097}},
  keywords     = {{Evolution of infection structure; Nematophagous fungus; Phylogeny}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{2}},
  pages        = {{179--184}},
  publisher    = {{Oxford University Press}},
  series       = {{FEMS Microbiology Letters}},
  title        = {{Phylogeny of nematode-trapping fungi based on 18S rDNA sequences}},
  url          = {{http://dx.doi.org/10.1111/j.1574-6968.1998.tb12817.x}},
  doi          = {{10.1111/j.1574-6968.1998.tb12817.x}},
  volume       = {{158}},
  year         = {{1998}},
}