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Information Journal Paper

Title

PHYLOGENETIC ANALYSIS OF IRANIAN POWDERY MILDEW FUNGI USING NUCLEOTIDE SEQUENCES OF 28S RIBOSOMAL DNA

Pages

  49-58

Abstract

 The nucleotide sequences of 28S nuclear RDNA were determined for 34 POWDERY MILDEW taxa mostly collected from IRAN in order to infer the phylogenetic relationships of these fungi. Total DNA was isolated from cleistothecia or mycelia using the chelex method. About a 650 nucleotide length of the 5´end of the 28S RDNA was amplified twice by the PCR using a nested primer set, PM3, TW14 and NLP2. Direct sequencing of the PCR product was done in an Applied Biosystems 373A sequencer. The results showed that POWDERY MILDEW taxa are divided into five groups, which were distinguished by their morphology. Members of Erysiphe section Erysiphe, Microsphaera and Uncinula clustered together. E. sect. Galeopsidis and E. sect. Golovinomyces were seperated from E. sect. Erysiphe and formed the Euoidium without fibrosin bodies group. Leveillula and Phyllactinia showed a close evolutionary relationship and clustered together. The genera Cystotheca, Podosphaera, Sawadaea, and Sphaerotheca formed a monophyletic group (fibrosin body lineage) with 98% bootstrap support. These fungi are well characterized by the presence of fibrosin bodies in their conidia. Blumeria graminis, which is characterized by some unique morphological characters, clustered with fibrosin body lineage with a low bootstrap value. This result shows that B. graminis is not closely related to the Erysiphe species. The nucleotide divergence between the genera analyzed in this study ranged from 0.50 to 14.10%. The lowest nucleotide divergence was found between Microsphaera and E. sect. Erysiphe (0.50–4.50%). Podosphaera and Sphaerotheca showed a low level of divergence, too (2.30-2.60%), which suggests a close relationship between these two genera.

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    APA: Copy

    KHODAPARAST, S.A., TAKAMATSU, S., & HEJAROUD, GH.A.. (2005). PHYLOGENETIC ANALYSIS OF IRANIAN POWDERY MILDEW FUNGI USING NUCLEOTIDE SEQUENCES OF 28S RIBOSOMAL DNA. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), 7(1-2), 49-58. SID. https://sid.ir/paper/530595/en

    Vancouver: Copy

    KHODAPARAST S.A., TAKAMATSU S., HEJAROUD GH.A.. PHYLOGENETIC ANALYSIS OF IRANIAN POWDERY MILDEW FUNGI USING NUCLEOTIDE SEQUENCES OF 28S RIBOSOMAL DNA. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)[Internet]. 2005;7(1-2):49-58. Available from: https://sid.ir/paper/530595/en

    IEEE: Copy

    S.A. KHODAPARAST, S. TAKAMATSU, and GH.A. HEJAROUD, “PHYLOGENETIC ANALYSIS OF IRANIAN POWDERY MILDEW FUNGI USING NUCLEOTIDE SEQUENCES OF 28S RIBOSOMAL DNA,” JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), vol. 7, no. 1-2, pp. 49–58, 2005, [Online]. Available: https://sid.ir/paper/530595/en

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