Tags

Type your tag names separated by a space and hit enter

Diversity and Distribution of Rice Blast (Pyricularia oryzae Cavara) Races in Bangladesh.
Plant Dis 2016; 100(10):2025-2033PD

Abstract

The pathogenicity of 331 blast isolates (Pyricularia oryzae Cavara) collected from different regions and ecosystems for rice cultivation in Bangladesh was evaluated by compatibility on 23 differential varieties (DV), each harboring a single blast resistance gene, and susceptible 'Lijiangxintuanheigu' (LTH). A wide variation in virulence was found among the isolates, and 267 races were classified using a new designation system. Virulence of blast isolates against DV carrying the resistance genes Pia, Pib, Pit, Pik-s, Piz-t, Pi12(t), Pi19(t), and Pi20(t), as well as avirulence against those carrying Pish, Pi9, Pita-2, and Pita, was distributed widely in Bangladesh. Cluster analysis of the compatibility data on the DV initially classified the isolates into groups I and II. The virulence spectra of the two groups differed mainly according to the reactions of the DV to Pii, Pi3, Pi5(t), Pik-m, Pi1, Pik-h, Pik, Pik-p, and Pi7(t). Group I isolates were distributed mainly in rainfed lowlands, whereas group II isolates were found mainly in irrigated lowlands; however, there were no critical differences in geographic distribution of the blast isolates. In total, 26 isolates, which could be used to identify the 23 resistance genes of the DV on the basis of their reaction patterns, were selected as a set of standard differential blast isolates. To our knowledge, this is the first clear demonstration of the diversity and differentiation of blast races in Bangladesh. This information will be used to develop a durable blast protection system in that country.

Authors+Show Affiliations

Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh.Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh.Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh.Tottori University, 4-101 Koyama-Minami Tottori, Tottori 680-8553, Japan.National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.Japan International Research Center for Agricultural Sciences, 1-1, Ohwashi, Tsukuba, Ibaraki 305-8686, Japan.Japan International Research Center for Agricultural Sciences, 1-1, Ohwashi, Tsukuba, Ibaraki 305-8686, Japan.Bangladesh Rice Research Institute.Bangladesh Rice Research Institute.Tropical Agriculture Research Front, Japan International Research Center Agricultural Sciences, 1091-1, Kawarabaru, Aza Maezato, Ishigaki, Okinawa 907-0002, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30683013

Citation

Khan, M A I., et al. "Diversity and Distribution of Rice Blast (Pyricularia Oryzae Cavara) Races in Bangladesh." Plant Disease, vol. 100, no. 10, 2016, pp. 2025-2033.
Khan MAI, Ali MA, Monsur MA, et al. Diversity and Distribution of Rice Blast (Pyricularia oryzae Cavara) Races in Bangladesh. Plant Dis. 2016;100(10):2025-2033.
Khan, M. A. I., Ali, M. A., Monsur, M. A., Kawasaki-Tanaka, A., Hayashi, N., Yanagihara, S., ... Fukuta, Y. (2016). Diversity and Distribution of Rice Blast (Pyricularia oryzae Cavara) Races in Bangladesh. Plant Disease, 100(10), pp. 2025-2033. doi:10.1094/PDIS-12-15-1486-RE.
Khan MAI, et al. Diversity and Distribution of Rice Blast (Pyricularia Oryzae Cavara) Races in Bangladesh. Plant Dis. 2016;100(10):2025-2033. PubMed PMID: 30683013.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Diversity and Distribution of Rice Blast (Pyricularia oryzae Cavara) Races in Bangladesh. AU - Khan,M A I, AU - Ali,M A, AU - Monsur,M A, AU - Kawasaki-Tanaka,A, AU - Hayashi,N, AU - Yanagihara,S, AU - Obara,M, AU - Mia,M A T, AU - Latif,M A, AU - Fukuta,Y, Y1 - 2016/07/21/ PY - 2019/1/27/entrez SP - 2025 EP - 2033 JF - Plant disease JO - Plant Dis. VL - 100 IS - 10 N2 - The pathogenicity of 331 blast isolates (Pyricularia oryzae Cavara) collected from different regions and ecosystems for rice cultivation in Bangladesh was evaluated by compatibility on 23 differential varieties (DV), each harboring a single blast resistance gene, and susceptible 'Lijiangxintuanheigu' (LTH). A wide variation in virulence was found among the isolates, and 267 races were classified using a new designation system. Virulence of blast isolates against DV carrying the resistance genes Pia, Pib, Pit, Pik-s, Piz-t, Pi12(t), Pi19(t), and Pi20(t), as well as avirulence against those carrying Pish, Pi9, Pita-2, and Pita, was distributed widely in Bangladesh. Cluster analysis of the compatibility data on the DV initially classified the isolates into groups I and II. The virulence spectra of the two groups differed mainly according to the reactions of the DV to Pii, Pi3, Pi5(t), Pik-m, Pi1, Pik-h, Pik, Pik-p, and Pi7(t). Group I isolates were distributed mainly in rainfed lowlands, whereas group II isolates were found mainly in irrigated lowlands; however, there were no critical differences in geographic distribution of the blast isolates. In total, 26 isolates, which could be used to identify the 23 resistance genes of the DV on the basis of their reaction patterns, were selected as a set of standard differential blast isolates. To our knowledge, this is the first clear demonstration of the diversity and differentiation of blast races in Bangladesh. This information will be used to develop a durable blast protection system in that country. SN - 0191-2917 UR - https://www.unboundmedicine.com/medline/citation/30683013/Diversity_and_Distribution_of_Rice_Blast__Pyricularia_oryzae_Cavara__Races_in_Bangladesh_ L2 - http://apsjournals.apsnet.org/doi/full/10.1094/PDIS-12-15-1486-RE?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -