<b>Genetic characteristics of </b><b><i>Pyricularia grisea</i></b><b> </b><b>and their pathotypes in Myanmar </b>

• Zaw Myo

  Graduate School of Integrated Sciences for Global Society, Kyushu University

• Aye Seint San

  Department of Plant Pathology, Yezin Agricultural University, Myanmar

• Matsumoto Masaru

  Institute of Tropical Agriculture, Kyushu University

Abstract

Rice blast disease is one of the major destructive fungal diseases of rice in Myanmar. In 2011, forty-six isolates of Pyricularia grisea were collected from Myanmar. The population structure of the P. grisea was determined by Rep-PCR using Pot2-TIR and MGR586-TIR primers separately. The combined dendrogram was constructed based on the different fingerprint patterns. Three fingerprint groups (designated as Type-A, Type-B and Type-C) were identified. Type-A and B were dominantly existed in Aung Ban area (Southern Shan State) whereas Type-C was prevalence in Hmawbi area (Yangon Division). Pathotypes of the representative isolates from each fingerprint group were examined by inoculating on a set of twelve Japanese differential rice cultivars and nine races (031.0, 032.0, 036.0, 106.4, 122.4, 132.4, 136.4, 432.5 and 437.5) were identified. This is the first characterization of genetic and pathotypic variations of P. girsea in Myanmar and there was no clear association between the genetic fingerprint profiles and pathotypic races.

Journal

• Bulletin of the Institute of Tropical Agriculture, Kyushu University

  Bulletin of the Institute of Tropical Agriculture, Kyushu University 39 (1), 103-111, 2016

  Institute of Tropical Agriculture, Kyushu University

Keywords

• DNA fingerprinting
• <i>Magnaporthe grisea</i>
• pathotypic race
• rice blast

Details

• CRID: 1390282680142828032
• NII Article ID: 130005439612
• DOI: 10.11189/bita.39.103
• ISSN: 18814212
• ISSN: 0915499X
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed