Phytopythium: Molecular phylogeny and systematics

A. W.A.M. de Cock; A. M. Lodhi; T. L. Rintoul; K. Bala; G. P. Robideau; Z. Gloria Abad; M. D. Coffey; S. Shahzad; C. A. Lévesque

doi:10.3767/003158515X685382

Phytopythium: Molecular phylogeny and systematics

A. W.A.M. de Cock, A. M. Lodhi, T. L. Rintoul, K. Bala, G. P. Robideau, Z. Gloria Abad, M. D. Coffey, S. Shahzad, C. A. Lévesque

Plant Pathology and Environmental Microbiology

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122 Scopus citations

Abstract

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 & 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 formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense.

Original language	English (US)
Pages (from-to)	25-39
Number of pages	15
Journal	Persoonia: Molecular Phylogeny and Evolution of Fungi
Volume	34
DOIs	https://doi.org/10.3767/003158515X685382
State	Published - Jun 29 2015

All Science Journal Classification (ASJC) codes

Ecology, Evolution, Behavior and Systematics

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title = "Phytopythium: Molecular phylogeny and systematics",

abstract = "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 L{\'e}vesque & 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 formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense.",

author = "{de Cock}, {A. W.A.M.} and Lodhi, {A. M.} and Rintoul, {T. L.} and K. Bala and Robideau, {G. P.} and {Gloria Abad}, Z. and Coffey, {M. D.} and S. Shahzad and L{\'e}vesque, {C. A.}",

note = "Publisher Copyright: {\textcopyright} 2014-2015, Naturalis Biodiversity Center & Centraalbureau voor Schimmelcultures.",

year = "2015",

month = jun,

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doi = "10.3767/003158515X685382",

language = "English (US)",

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T2 - Molecular phylogeny and systematics

AU - de Cock, A. W.A.M.

AU - Lodhi, A. M.

AU - Rintoul, T. L.

AU - Bala, K.

AU - Robideau, G. P.

AU - Gloria Abad, Z.

AU - Coffey, M. D.

AU - Shahzad, S.

AU - Lévesque, C. A.

PY - 2015/6/29

Y1 - 2015/6/29

N2 - 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 & 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 formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense.

AB - 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 & 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 formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense.

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JO - Persoonia: Molecular Phylogeny and Evolution of Fungi

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Phytopythium: Molecular phylogeny and systematics

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