Mycobiology.  2017 Sep;45(3):139-149. 10.5941/MYCO.2017.45.3.139.

Diversity, Phylogeny, and Host-Specialization of Hyaloperonospora Species in Korea

Affiliations
  • 1Department of Biology, Kunsan National University, Gunsan 54150, Korea. yjchoi@kunsan.ac.kr
  • 2Division of Food Technology, Biotechnology & Agrochemistry, Chonnam National University, Gwangju 61186, Korea.
  • 3Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea.

Abstract

The genus Hyaloperonospora (Peronosporaceae; Oomycota) is an obligate biotrophic group that causes downy mildew disease on the Brassicaceae and allied families of Brassicales, including many economically relevant crops, such as broccoli, cabbage, radish, rape, and wasabi. To investigate the diversity of Hyaloperonospora species in northeast Asia, we performed a morphological analysis for the dried herbarium specimens collected in Korea, along with molecular phylogenetic inferences based on internal transcribed spacer rDNA and cox2 mtDNA sequences. It was confirmed that 14 species of Hyaloperonospora exist in Korea. Of these, three species, previously classified under the genus Peronospora, were combined to Hyaloperonospora: H. arabidis-glabrae comb. nov. (ex Arabis glabra), H. nasturtii-montani comb. nov. (ex Rorippa indica), and H. nasturtii-palustris comb. nov. (ex Rorippa palustris). In addition, finding two potentially new species specific to northeast Asian plants is noteworthy in support of the view that the species abundance of Hyaloperonospora has been underestimated hitherto.

Keyword

Barcoding; Brassicaceae; cox2; Downy mildew; Emerging disease; Perofascia

MeSH Terms

Arabis
Asia
Asian Continental Ancestry Group
Brassica
Brassicaceae
DNA, Mitochondrial
DNA, Ribosomal
Humans
Korea*
Peronospora
Phylogeny*
Rape
Raphanus
Rorippa
DNA, Mitochondrial
DNA, Ribosomal
Full Text Links
  • MB
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr