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Citation for Study 27395

Citation title: "Phylogenetic placement and reassessment of Asperisporium pongamiae as Pedrocrousiella pongamiae gen. et comb. nov. (Mycosphaerellaceae)".

Study name: "Phylogenetic placement and reassessment of Asperisporium pongamiae as Pedrocrousiella pongamiae gen. et comb. nov. (Mycosphaerellaceae)".

This study is part of submission 27395 (Status: Published).

Citation

Rajeshkumar K.C., Braun U., Groenewald J.Z., Lad S.S., Ashtekar N., Fatima S., & Anand G. 2021. Phylogenetic placement and reassessment of Asperisporium pongamiae as Pedrocrousiella pongamiae gen. et comb. nov. (Mycosphaerellaceae). Fungal Systematics and Evolution, 7: 165-176.

Authors

• Rajeshkumar K.C.
• Braun U.
• Groenewald J.Z. (submitter) +31302122600
• Lad S.S.
• Ashtekar N.
• Fatima S.
• Anand G.

Abstract

The leaf spot disease of Pongamia pinnata caused by an asperisporium-like asexual morph, which is usually referred to as Asperisporium pongamiae, is quite common during monsoon seasons in India. Phylogenetic analyses, based on LSU and rpb2 sequence data, and blast searches using ITS sequence data, revealed that this ascomycete forms a lineage within Mycosphaerellaceae distant from all other generic lineages. Pedrocrousiella gen. nov., with P. pongamiae comb. nov., based on Fusicladium pongamiae (≡ A. pongamiae), as type species is introduced for this lineage. This species has been considered the asexual morph of Mycosphaerella pongamiae (≡ Stigmatea pongamiae). However, this connection is unproven and was just based on the occasional association of the two taxa in some collections. Several attempts to induce the formation of a sexual morph in culture failed, therefore the putative connection between these morphs could not be confirmed. Asperisporium pongamiae-pinnatae is reduced to synonymy with P. pongamiae. Asperisporium pongamiae-pinnatae was introduced because of the wrong assumption that F. pongamiae had been described on another host, Pongamia globosa. But Fusicladium pongamiae was actually described in India on Pongamia glabra, which is a synonym of P. pinnata, and hence on the same host as Asperisporium pongamiae-pinnatae. Pedrocrousiella pongamiae clusters in a clade containing Distocercospora, Clypeosphaerella, and ?Pseudocercospora? nephrolepidicola, a species which is not congeneric with Pseudocercospora. Phylogenetically, Pedrocrousiella is distant from the Asperisporium s. str. clade (type species A. caricae), which is more closely related to Amycosphaerella, Pseudocercosporella, Distomycovellosiella and Nothopassalora.

Keywords

Ascomycota, India, multigene-phylogeny, Mycosphaerellales, new taxon

External links

• DOI: 10.3114/fuse.2021.07.08
• PMID: 34124622
• Other URL: http://doi.org/10.3114/fuse.2021.07.08

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S27395
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref32415,
  	 author = {Kunhiraman C Rajeshkumar and Uwe  Braun and  Johannes (Ewald) Zacharias Groenewald and Sneha S Lad and Nikhil  Ashtekar and S.  Fatima and Garima  Anand},
  	 title = {Phylogenetic placement and reassessment of Asperisporium pongamiae as Pedrocrousiella pongamiae gen. et comb. nov. (Mycosphaerellaceae)},
  	 year = {2021},
  	 keywords = {Ascomycota, India, multigene-phylogeny, Mycosphaerellales, new taxon},
  	 doi = {10.3114/fuse.2021.07.08},
  	 url = {http://doi.org/10.3114/fuse.2021.07.08},
  	 pmid = {34124622},
  	 journal = {Fungal Systematics and Evolution},
  	 volume = {7},
  	 number = {},
  	 pages = {165--176},
  	 abstract = {The leaf spot disease of Pongamia pinnata caused by an asperisporium-like asexual morph, which is usually referred to as Asperisporium pongamiae, is quite common during monsoon seasons in India. Phylogenetic analyses, based on LSU and rpb2 sequence data, and blast searches using ITS sequence data, revealed that this ascomycete forms a lineage within Mycosphaerellaceae distant from all other generic lineages. Pedrocrousiella gen. nov., with P. pongamiae comb. nov., based on Fusicladium pongamiae (≡ A. pongamiae), as type species is introduced for this lineage. This species has been considered the asexual morph of Mycosphaerella pongamiae (≡ Stigmatea pongamiae). However, this connection is unproven and was just based on the occasional association of the two taxa in some collections. Several attempts to induce the formation of a sexual morph in culture failed, therefore the putative connection between these morphs could not be confirmed. Asperisporium pongamiae-pinnatae is reduced to synonymy with P. pongamiae. Asperisporium pongamiae-pinnatae was introduced because of the wrong assumption that F. pongamiae had been described on another host, Pongamia globosa. But Fusicladium pongamiae was actually described in India on Pongamia glabra, which is a synonym of P. pinnata, and hence on the same host as Asperisporium pongamiae-pinnatae. Pedrocrousiella pongamiae clusters in a clade containing Distocercospora, Clypeosphaerella, and ?Pseudocercospora? nephrolepidicola, a species which is not congeneric with Pseudocercospora. Phylogenetically, Pedrocrousiella is distant from the Asperisporium s. str. clade (type species A. caricae), which is more closely related to Amycosphaerella, Pseudocercosporella, Distomycovellosiella and Nothopassalora. }
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 32415
  AU  - Rajeshkumar,Kunhiraman C
  AU  - Braun,Uwe 
  AU  - Groenewald, Johannes (Ewald) Zacharias
  AU  - Lad,Sneha S
  AU  - Ashtekar,Nikhil 
  AU  - Fatima,S. 
  AU  - Anand,Garima 
  T1  - Phylogenetic placement and reassessment of Asperisporium pongamiae as Pedrocrousiella pongamiae gen. et comb. nov. (Mycosphaerellaceae)
  PY  - 2021
  KW  - Ascomycota
  KW  - India
  KW  - multigene-phylogeny
  KW  - Mycosphaerellales
  KW  - new taxon
  UR  - http://doi.org/10.3114/fuse.2021.07.08
  N2  - The leaf spot disease of Pongamia pinnata caused by an asperisporium-like asexual morph, which is usually referred to as Asperisporium pongamiae, is quite common during monsoon seasons in India. Phylogenetic analyses, based on LSU and rpb2 sequence data, and blast searches using ITS sequence data, revealed that this ascomycete forms a lineage within Mycosphaerellaceae distant from all other generic lineages. Pedrocrousiella gen. nov., with P. pongamiae comb. nov., based on Fusicladium pongamiae (≡ A. pongamiae), as type species is introduced for this lineage. This species has been considered the asexual morph of Mycosphaerella pongamiae (≡ Stigmatea pongamiae). However, this connection is unproven and was just based on the occasional association of the two taxa in some collections. Several attempts to induce the formation of a sexual morph in culture failed, therefore the putative connection between these morphs could not be confirmed. Asperisporium pongamiae-pinnatae is reduced to synonymy with P. pongamiae. Asperisporium pongamiae-pinnatae was introduced because of the wrong assumption that F. pongamiae had been described on another host, Pongamia globosa. But Fusicladium pongamiae was actually described in India on Pongamia glabra, which is a synonym of P. pinnata, and hence on the same host as Asperisporium pongamiae-pinnatae. Pedrocrousiella pongamiae clusters in a clade containing Distocercospora, Clypeosphaerella, and ?Pseudocercospora? nephrolepidicola, a species which is not congeneric with Pseudocercospora. Phylogenetically, Pedrocrousiella is distant from the Asperisporium s. str. clade (type species A. caricae), which is more closely related to Amycosphaerella, Pseudocercosporella, Distomycovellosiella and Nothopassalora. 
  L3  - 10.3114/fuse.2021.07.08
  JF  - Fungal Systematics and Evolution
  VL  - 7
  IS  - 
  SP  - 165
  EP  - 176
  ER  -