File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Phylogenetics and evolution of nematode-trapping fungi (Orbiliales) estimated from nuclear and protein coding genes

TitlePhylogenetics and evolution of nematode-trapping fungi (Orbiliales) estimated from nuclear and protein coding genes
Authors
Keywordsβ-tubulin
Evolution
Fungi
Phylogeny
Predatory
Issue Date2005
PublisherMycological Society of America. The Journal's web site is located at http://www.msafungi.org
Citation
Mycologia, 2005, v. 97 n. 5, p. 1034-1046 How to Cite?
AbstractThe systematic classification of nematode-trapping fungi is redefined based on phylogenies inferred from sequence analyses of 28S rDNA, 5.8S rDNA and ß-tubulin genes. Molecular data were analyzed with maximum parsimony, maximum likelihood and Bayesian analysis. An emended generic concept of nematode-trapping fungi is provided. Arthrobotrys is characterized by adhesive networks, Dactylellina by adhesive knobs, and Drechslerella by constricting-rings. Phylogenetic placement of taxa characterized by stalked adhesive knobs and non-constricting rings also is confirmed in Dactylellina. Species that produce unstalked adhesive knobs that grow out to form loops are transferred from Gamsylella to Dactylellina, and those that produce unstalked adhesive knobs that grow out to form networks are transferred from Gamsylella to Arthrobotrys. Gamsylella as currently circumscribed cannot be treated as a valid genus. A hypothesis for the evolution of trapping-devices is presented based on multiple gene data and morphological studies. Predatory and nonpredatory fungi appear to have been derived from nonpredatory members of Orbilia. The adhesive knob is considered to be the ancestral type of trapping device from which constricting rings and networks were derived via two pathways. In the first pathway adhesive knobs retained their adhesive material forming simple two-dimension networks, eventually forming complex three-dimension networks. In the second pathway adhesive knobs lost their adhesive materials, with their ends meeting to form nonconstricting rings and they in turn formed constricting rings with three inflated-cells.
Persistent Identifierhttp://hdl.handle.net/10722/53351
ISSN
2015 Impact Factor: 2.638
2015 SCImago Journal Rankings: 1.145
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, Yen_HK
dc.contributor.authorHyde, KDen_HK
dc.contributor.authorJeewon, Ren_HK
dc.contributor.authorCai, Len_HK
dc.contributor.authorVijaykrishna , Den_HK
dc.contributor.authorZhang, Ken_HK
dc.date.accessioned2009-04-03T07:17:29Z-
dc.date.available2009-04-03T07:17:29Z-
dc.date.issued2005en_HK
dc.identifier.citationMycologia, 2005, v. 97 n. 5, p. 1034-1046en_HK
dc.identifier.issn0027-5514en_HK
dc.identifier.urihttp://hdl.handle.net/10722/53351-
dc.description.abstractThe systematic classification of nematode-trapping fungi is redefined based on phylogenies inferred from sequence analyses of 28S rDNA, 5.8S rDNA and ß-tubulin genes. Molecular data were analyzed with maximum parsimony, maximum likelihood and Bayesian analysis. An emended generic concept of nematode-trapping fungi is provided. Arthrobotrys is characterized by adhesive networks, Dactylellina by adhesive knobs, and Drechslerella by constricting-rings. Phylogenetic placement of taxa characterized by stalked adhesive knobs and non-constricting rings also is confirmed in Dactylellina. Species that produce unstalked adhesive knobs that grow out to form loops are transferred from Gamsylella to Dactylellina, and those that produce unstalked adhesive knobs that grow out to form networks are transferred from Gamsylella to Arthrobotrys. Gamsylella as currently circumscribed cannot be treated as a valid genus. A hypothesis for the evolution of trapping-devices is presented based on multiple gene data and morphological studies. Predatory and nonpredatory fungi appear to have been derived from nonpredatory members of Orbilia. The adhesive knob is considered to be the ancestral type of trapping device from which constricting rings and networks were derived via two pathways. In the first pathway adhesive knobs retained their adhesive material forming simple two-dimension networks, eventually forming complex three-dimension networks. In the second pathway adhesive knobs lost their adhesive materials, with their ends meeting to form nonconstricting rings and they in turn formed constricting rings with three inflated-cells.en_HK
dc.languageengen_HK
dc.publisherMycological Society of America. The Journal's web site is located at http://www.msafungi.orgen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectβ-tubulinen_HK
dc.subjectEvolutionen_HK
dc.subjectFungien_HK
dc.subjectPhylogenyen_HK
dc.subjectPredatoryen_HK
dc.titlePhylogenetics and evolution of nematode-trapping fungi (Orbiliales) estimated from nuclear and protein coding genesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0027-5514&volume=97&issue=5&spage=1034&epage=1046&date=2005&atitle=Phylogenetics+and+evolution+of+nematode-trapping+fungi+(Orbiliales)+estimated+from+nuclear+and+protein+coding+genes+en_HK
dc.identifier.emailHyde, KD: kdhyde@hkucc.hku.hken_HK
dc.identifier.emailJeewon, R: rajeshjeewon@yahoo.comen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.3852/mycologia.97.5.1034-
dc.identifier.pmid16596955-
dc.identifier.scopuseid_2-s2.0-33644761990-
dc.identifier.isiWOS:000236261500008-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats