CiteULike CiteULike
Delicious Delicious
Connotea Connotea

Citation for Study 10247

About Citation title: "Molecular phylogenetic analyses reveal close evolutionary relationship between Podosphaera (Erysiphales: Erysiphaceae) and their rosaceous hosts.".
About This study was previously identified under the legacy study ID S2604 (Status: Published).

Citation

Takamatsu S., Niinomi S., Harada M., & Havrylenko M. 2010. Molecular phylogenetic analyses reveal close evolutionary relationship between Podosphaera (Erysiphales: Erysiphaceae) and their rosaceous hosts. Persoonia, 24: 38?48.

Authors

  • Takamatsu S.
  • Niinomi S.
  • Harada M.
  • Havrylenko M.

Abstract

Podosphaera is a genus of the powdery mildew fungi belonging to the tribe Cystotheceae of the Erysiphaceae. Among the host plants of Podosphaera, 86% of hosts of the section Podosphaera and 57% hosts of the subsection Sphaerotheca belong to the Rosaceae. In order to reconstruct the phylogeny of Podosphaera and to determine evolutionary relationships between Podosphaera and its host plants, we used 152 ITS sequences and 69 28S rDNA sequences of Podosphaera for phylogenetic analyses. As a result, Podosphaera was divided into two large clades: clade 1, consisting of the section Podosphaera on Prunus (P. tridactyla s. lat.) and subsection Magnicellulatae; and clade 2, composed of the remaining member of section Podosphaera and subsection Sphaerotheca. Because section Podosphaera takes a basal position in both clades, section Podosphaera may be ancestral in the genus Podosphaera, and the subsections Sphaerotheca and Magnicellulatae may have evolved from section Podosphaera independently. Podosphaera isolates from the respective subfamilies of Rosaceae each formed different groups in the trees, suggesting a close evolutionary relationship between Podosphaera spp. and their rosaceous hosts. However, tree topology comparison and molecular clock calibration did not support the possibility of co-speciation between Podosphaera and Rosaceae. Molecular phylogeny did not support species delimitation of P. tridactyla, P. clandestina, P. spiraeae, P. ferruginea, and P. aphanis in their current circumscriptions, which suggests the need for revision of these species.

Keywords

28S rDNA, evolution, ITS, molecular clock, phylogeny, powdery mildew fungi, Rosaceae

External links

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S10247
  • Other versions: Download Reconstructed NEXUS File Nexus Download NeXML File NeXML
  • Show BibTeX reference
  • Show RIS reference