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Citation for Study 1403

Citation title: "Molecular phylogeny and evolution of the maple powdery mildew (Sawadaea Miyabe; Erysiphaceae) inferred from nuclear rDNA sequences".

This study was previously identified under the legacy study ID S1335 (Status: Published).

Citation

Hirose S., Tanda S., Kiss L., Grigaliunaite B., Havrylenko M., & Takamatsu S. 2005. Molecular phylogeny and evolution of the maple powdery mildew (Sawadaea Miyabe; Erysiphaceae) inferred from nuclear rDNA sequences. Mycological Research, 109.

Authors

• Hirose S.
• Tanda S.
• Kiss L.
• Grigaliunaite B.
• Havrylenko M.
• Takamatsu S.

Abstract

To understand the phylogenetic relationships and evolution of the powdery mildew genus Sawadaea (Ascomycete: Erysiphaceae), obligate parasitic fungi of maples, we performed molecular phylogenetic analyses based on 47 internal transcribed spacer (ITS) and ten 28S rDNA sequences. Seven major clades of Sawadaea, each represented by powdery mildew specimens collected from a single or a small number of closely related sections of Acer, were identified in this study, which suggests close evolutionary relationships between Acer (host) and Sawadaea (parasite). Six- to eleven-base insertion/deletion was found in the ITS1 region, and the presence or absence of the indel was consistent within the respective clades. Because the outgroup genera Podosphaera and Cystotheca have no deletions in the sites, deletion of the sequences may have occurred during the divergence of the respective clades of Sawadaea. The seven clades were divided into two geographical groups, viz., East Asian group and global group, based on the countries of collection of Sawadaea. Calculation of evolutionary timing of Sawadaea using molecular clocks shows that the divergence of different species of Acer had happened many million years before the radiation time of Sawadaea. Thus, the close evolutionary relationship between Sawadaea and Acer found in this study might not be the consequence of a true co-evolutionary process. Powdery mildew fungi belonging to the genus Sawadaea might have had jumped on Acer spp. long after the radiation of the major sections of these trees and then expanded their host ranges according to the phylogeny and sometimes the geographical distribution of Acer.

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S1403
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref15858,
  	 author = {Simon  Hirose and Seinosuke  Tanda and Levente  Kiss and Banga  Grigaliunaite and Mar?a  Havrylenko and Susumu  Takamatsu},
  	 title = {Molecular phylogeny and evolution of the maple powdery mildew (Sawadaea Miyabe; Erysiphaceae) inferred from nuclear rDNA sequences},
  	 year = {2005},
  	 keywords = {},
  	 doi = {},
  	 url = {},
  	 pmid = {},
  	 journal = {Mycological Research},
  	 volume = {109},
  	 number = {},
  	 pages = {},
  	 abstract = {To understand the phylogenetic relationships and evolution of the powdery mildew genus Sawadaea (Ascomycete: Erysiphaceae), obligate parasitic fungi of maples, we performed molecular phylogenetic analyses based on 47 internal transcribed spacer (ITS) and ten 28S rDNA sequences. Seven major clades of Sawadaea, each represented by powdery mildew specimens collected from a single or a small number of closely related sections of Acer, were identified in this study, which suggests close evolutionary relationships between Acer (host) and Sawadaea (parasite). Six- to eleven-base insertion/deletion was found in the ITS1 region, and the presence or absence of the indel was consistent within the respective clades. Because the outgroup genera Podosphaera and Cystotheca have no deletions in the sites, deletion of the sequences may have occurred during the divergence of the respective clades of Sawadaea. The seven clades were divided into two geographical groups, viz., East Asian group and global group, based on the countries of collection of Sawadaea. Calculation of evolutionary timing of Sawadaea using molecular clocks shows that the divergence of different species of Acer had happened many million years before the radiation time of Sawadaea. Thus, the close evolutionary relationship between Sawadaea and Acer found in this study might not be the consequence of a true co-evolutionary process. Powdery mildew fungi belonging to the genus Sawadaea might have had jumped on Acer spp. long after the radiation of the major sections of these trees and then expanded their host ranges according to the phylogeny and sometimes the geographical distribution of Acer.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 15858
  AU  - Hirose,Simon 
  AU  - Tanda,Seinosuke 
  AU  - Kiss,Levente 
  AU  - Grigaliunaite,Banga 
  AU  - Havrylenko,Mar?a 
  AU  - Takamatsu,Susumu 
  T1  - Molecular phylogeny and evolution of the maple powdery mildew (Sawadaea Miyabe; Erysiphaceae) inferred from nuclear rDNA sequences
  PY  - 2005
  KW  - 
  UR  - 
  N2  - To understand the phylogenetic relationships and evolution of the powdery mildew genus Sawadaea (Ascomycete: Erysiphaceae), obligate parasitic fungi of maples, we performed molecular phylogenetic analyses based on 47 internal transcribed spacer (ITS) and ten 28S rDNA sequences. Seven major clades of Sawadaea, each represented by powdery mildew specimens collected from a single or a small number of closely related sections of Acer, were identified in this study, which suggests close evolutionary relationships between Acer (host) and Sawadaea (parasite). Six- to eleven-base insertion/deletion was found in the ITS1 region, and the presence or absence of the indel was consistent within the respective clades. Because the outgroup genera Podosphaera and Cystotheca have no deletions in the sites, deletion of the sequences may have occurred during the divergence of the respective clades of Sawadaea. The seven clades were divided into two geographical groups, viz., East Asian group and global group, based on the countries of collection of Sawadaea. Calculation of evolutionary timing of Sawadaea using molecular clocks shows that the divergence of different species of Acer had happened many million years before the radiation time of Sawadaea. Thus, the close evolutionary relationship between Sawadaea and Acer found in this study might not be the consequence of a true co-evolutionary process. Powdery mildew fungi belonging to the genus Sawadaea might have had jumped on Acer spp. long after the radiation of the major sections of these trees and then expanded their host ranges according to the phylogeny and sometimes the geographical distribution of Acer.
  L3  - 
  JF  - Mycological Research
  VL  - 109
  IS  - 
  ER  -