A unique genetic variation with respect to blast (Pyricularia oryzae Cavara) resistance in rice (Oryza sativa L.) varieties in Vietnam

Copyright © 2023 by JAPANESE SOCIETY OF BREEDING.

Bibliographische Detailangaben
Veröffentlicht in:Breeding science. - 1998. - 73(2023), 2 vom: 30. Apr., Seite 193-203
1. Verfasser: Nguyen, Ngoc B (VerfasserIn)
Weitere Verfasser: Nguyen, Nguyet T M, Nguyen, Nhai T, Le, Linh H, La, Nghia T, Nguyen, Thuy T T, Yanoria, Mary Jeany, Hayashi, Nagao, Saito, Hiroki, Obara, Mitsuhiro, Sato, Tadashi, Fukuta, Yoshimichi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Breeding science
Schlagworte:Journal Article Vietnam blast disease differential system genetic variation resistance rice (Oryza sativa L.)
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520 |a A unique genetic variation with respect to blast resistance was clarified in 201 rice accessions from Vietnam. These accessions were classified into three clusters-A, B1, and B2-based on their reactions to 26 standard differential blast isolates selected in Vietnam. Cluster A was the dominant cultivar group in Vietnam and the most susceptible of the three clusters. Cluster B1 was the smallest group and the most resistant. Cluster B2 was the second-most dominant group and of intermediate resistance between clusters A and B1. The percentages of accessions comprising each cluster varied by region and area. Accessions in cluster A were distributed widely throughout Vietnam and had the highest frequencies in both the Central and North regions. Accessions in cluster B2 were found with highest frequencies in the mountainous and intermediate areas of the North region. Accessions in cluster B1 were found with highest frequencies in the Central region and Red River Delta area (North region). These results suggest that rice accessions in Vietnam were basically susceptible (cluster A) or of intermediate resistance (cluster B2), and that high-resistance cultivars were mainly distributed in the low altitude areas, such as the Red River Delta area and Central region 
650 4 |a Journal Article 
650 4 |a Vietnam 
650 4 |a blast disease 
650 4 |a differential system 
650 4 |a genetic variation 
650 4 |a resistance 
650 4 |a rice (Oryza sativa L.) 
700 1 |a Nguyen, Nguyet T M  |e verfasserin  |4 aut 
700 1 |a Nguyen, Nhai T  |e verfasserin  |4 aut 
700 1 |a Le, Linh H  |e verfasserin  |4 aut 
700 1 |a La, Nghia T  |e verfasserin  |4 aut 
700 1 |a Nguyen, Thuy T T  |e verfasserin  |4 aut 
700 1 |a Yanoria, Mary Jeany  |e verfasserin  |4 aut 
700 1 |a Hayashi, Nagao  |e verfasserin  |4 aut 
700 1 |a Saito, Hiroki  |e verfasserin  |4 aut 
700 1 |a Obara, Mitsuhiro  |e verfasserin  |4 aut 
700 1 |a Sato, Tadashi  |e verfasserin  |4 aut 
700 1 |a Fukuta, Yoshimichi  |e verfasserin  |4 aut 
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773 1 8 |g volume:73  |g year:2023  |g number:2  |g day:30  |g month:04  |g pages:193-203 
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