Consulta: creatorFacets:"Lévesque, C.A."
Registros recuperados: 4
Data/hora: 09/06/2024 18:00:46

Taxonomy, DNA barcoding and phylogeny of three new species of Pythium from Canada
Provedor de dados: 16
Autores: Bala, K.; Robideau, G.P.; Désaulniers, N.; Cock, A.W.A.M. de; Lévesque, C.A.
Three new species of Pythium, namely, P. oopapillum, P. emineosum and P. camurandrum are presented in this paper based on morphological descriptions and molecular phylogenetic characterisation. These new species were isolated from various ecological regions in Canada. They have unique morphological features in the genus Pythium, and form distinct clades in maximum parsimony analyses, which are also supported by maximum likelihood phylogeny using general time reversible model (GTR), and Bayesian inference (BI) phylogeny using Markov Chain Monte Carlo (MCMC) analysis methods. A comparative study of the new species with closely related taxa, their clade positions, and morphological features are described in this paper.
Tipo: Article / Letter to the editor
Palavras-chave: COI; ITS rDNA; LSU rDNA; Oomycete; Peronosporales; Pythium; Taxonomy.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/531810

Fungal Planet description sheets: 371–399
Provedor de dados: 16
Autores: Crous, P.W.; Wingfield, M.J.; Le Roux, J.J.; Richardson, D.M.; Strasberg, D.; Shivas, R.G.; Alvarado, P.; Edwards, J.; Moreno, G.; Sharma, R.; Sonawane, M.S.; Tan, Y.P.; Altés, A.; Barasubiye, T.; Barnes, C.W.; Blanchette, R.A.; Boertmann, D.; Bogo, A.; Carlavilla, J.R.; Cheewangkoon, R.; Daniel, R.; Beer, Z.W. de; Jesús Yáñez-Morales, M. de; Doung, T.A.; Fernández-Vicente, J.; Geering, A.D.W.; Guest, D.I.; Held, B.W.; Keykoop, M.; Hubka, V.; Ismail, A.M.; Kajale, S.C.; Khemmuk, W.; Kolařík, M.; Kurli, R.; Lebeuf, R.; Lévesque, C.A.; Lombard, L.; Magista, D.; Manjón, J.L.; Marincowitz, S.; Mohedano, J.M.; Nováková, A.; Oberlies, N.H.; Otto, E.C.; Paguigan, N.D.; Pascoe, I.G.; Pérez-Butrón, J.L.; Perrone, G.; Rahi, P.; Raja, H.A.; Rintoul, T.; Sanhueza, R.M.V.; Scarlett, K.; Shouche, Y.S.; Shuttleworth, L.A.; Taylor, P.W.J.; Thorn, R.G.; Vawdrey, L.L.; Solano-Vidal, R.; Voitk, A.; Wong, P.T.W.; Wood, A.R.; Zamora, J.C.; Groenewald, J.Z.
Novel species of fungi described in the present study include the following from Australia: Neoseptorioides eucalypti gen. &amp; sp. nov. from Eucalyptus radiata leaves, Phytophthora gondwanensis from soil, Diaporthe tulliensis from rotted stem ends of Theobroma cacao fruit, Diaporthe vawdreyi from fruit rot of Psidium guajava, Magnaporthiopsis agrostidis from rotted roots of Agrostis stolonifera and Semifissispora natalis from Eucalyptus leaf litter. Furthermore, Neopestalotiopsis egyptiaca is described from Mangifera indica leaves (Egypt), Roussoella mexicana from Coffea arabica leaves (Mexico), Calonectria monticola from soil (Thailand), Hygrocybe jackmanii from littoral sand dunes (Canada), Lindgomyces madisonensis from submerged decorticated wood...
Tipo: Article / Letter to the editor
Palavras-chave: ITS DNA barcodes; LSU; Novel fungal species; Systematics.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/588712

Phytopythium: molecular phylogeny and systematics
Provedor de dados: 16
Autores: Cock, A.W.A.M. de; Lodhi, A.M.; Rintoul, T.L.; Bala, K.; Robideau, G.P.; Gloria Abad, Z.; Coffey, M.D.; Shahzad, S.; Lévesque, C.A.
The genus Phytopythium (Peronosporales) has been described, but a complete circumscription has not yet been presented. In the present paper we provide molecular-based evidence that members of Pythium clade K as described by Lévesque &amp; de Cock (2004) belong to Phytopythium. Maximum likelihood and Bayesian phylogenetic analysis of the nuclear ribosomal DNA (LSU and SSU) and mitochondrial DNA cytochrome oxidase subunit 1 (COI) as well as statistical analyses of pairwise distances strongly support the status of Phytopythium as a separate phylogenetic entity. Phytopythium is morphologically intermediate between the genera Phytophthora and Pythium. It is unique in having papillate, internally proliferating sporangia and cylindrical or lobate antheridia. The...
Tipo: Article / Letter to the editor
Palavras-chave: COI; LSU; Oomycetes; Oomycota; Peronosporales; Phytopythium; Pythiales; SSU.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/560055

One fungus, which genes? Development and assessment of universal primers for potential secondary fungal DNA barcodes
Provedor de dados: 16
Autores: Stielow, J.B.; Lévesque, C.A.; Seifert, K.A.; Meyer, W.; Irinyi, L.; Smits, D.; Renfurm, R.; Verkley, G.J.M.; Groenewald, M.; Chaduli, D.; Lomascolo, A.; Welti, S.; Lesage-Meessen, L.; Favel, A.; Al-Hatmi, A.M.S.; Damm, U.; Yilmaz, N.; Houbraken, J.; Lombard, L.; Quaedvlieg, W.; Binder, M.; Vaas, L.A.I.; Vu, D.; Yurkov, A.; Begerow, D.; Roehl, O.; Guerreiro, M.; Fonseca, A.; Samerpitak, K.; Diepeningen, A.D. van; Dolatabadi, S.; Moreno, L.F.; Casaregola, S.; Mallet, S.; Jacques, N.; Roscini, L.; Egidi, E.; Bizet, C.; Garcia-Hermoso, D.; Martin, M.P.; Deng, S.; Groenewald, J.Z.; Boekhout, T.; Beer, Z.W. de; Barnes, I.; Duong, T.A.; Wingfield, M.J.; Hoog, G.S. de; Crous, P.W.; Lewis, C.T.; Hambleton, S.; Moussa, T.A.A.; Al-Zahrani, H.S.; Almaghrabi, O.A.; Louis-Seize, G.; Assabgui, R.; McCormick, W.; Omer, G.; Dukik, K.; Cardinali, G.; Eberhardt, U.; Vries, M. de; Robert, V.
The aim of this study was to assess potential candidate gene regions and corresponding universal primer pairs as secondary DNA barcodes for the fungal kingdom, additional to ITS rDNA as primary barcode. Ampliﬁcation efﬁciencies of 14 (partially) universal primer pairs targeting eight genetic markers were tested across &gt; 1 500 species (1 931 strains or specimens) and the outcomes of almost twenty thousand (19 577) polymerase chain reactions were evaluated. We tested several well-known primer pairs that amplify: i) sections of the nuclear ribosomal RNA gene large subunit (D1–D2 domains of 26/28S); ii) the complete internal transcribed spacer region (ITS1/2); iii) partial β-tubulin II (TUB2); iv) γ-actin (ACT); v) translation elongation factor 1-α (TEF1α);...
Tipo: Article / Letter to the editor
Palavras-chave: DNA barcoding; ITS supplement; Molecular taxonomy; Phylogeny; Species identiﬁcation; Universal primers.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/588731