Peronosclerospora australiensis is a synonym of P. maydis, which is widespread on Sumatra, and distinct from the most prevalent Java maize downy mildew pathogen

  • This study was performed to identify Peronosclerospora species found in Indonesia based on sequence analysis of the cox2 gene. In addition, sequence data in total, 26 isolates of Peronosclerospora were investigated in this study. They were obtained from 7 provinces in Indonesia, namely Lampung, Jawa Timur, Jawa Barat, Sumatera Utara, Jawa Tengah, Yogyakarta, and Sulawesi Selatan. Sequence analysis of cox2 and phylogenetic inference were performed on all the 26 isolates. A set of primers developed in this study, PCOX2F and PCOX2R, was used for PCR amplification. Phylogenetic analyses showed that all the Indonesian isolates were divided into two groups. Group I contained 13 isolates; 9 isolates obtained from Lampung, 3 isolates from Sumatera Utara, and 1 isolate from Jawa Barat. Group II consisted of 13 isolates; 7 isolates from Jawa Timur, 2 isolates from Jawa Tengah, 1 isolate from Yogyakarta, and 3 isolates from Sulawesi Selatan. All the members of group I clustered with the ex-type sequence of P. australiensis. Meanwhile, all members of Group II formed the sister clade of isolates obtained from Timor-Leste and may represent P. maydis.

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Author:Radix SuharjoORCiD, I. Gede Swibawa, Joko Prasetyo, Yuyun FitrianaORCiD, Yanuar Danaatmadja, Ari Budiawan, Sean Roberts, Nanin Noorhajati, Muhammad Amad, Marco ThinesORCiDGND
Parent Title (English):Mycological Progress
Place of publication:Berlin ; Heidelberg
Document Type:Article
Date of Publication (online):2020/11/09
Date of first Publication:2020/11/09
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/11/23
Tag:Biosecurity; Genetic variation; Graminicolous downy mildews; Phylogeny; cox2
Page Number:7
First Page:1309
Last Page:1315
We thank PT Syngenta Indonesia for providing the financial support and collecting the diseased maize leaves samples.
Open Access funding enabled and organized by Projekt DEAL.
Fachübergreifende Einrichtungen / Biodiversität und Klima Forschungszentrum (BiK-F)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International