Fungicide Resistance of Gibberella fujikuroi Isolates Causing Rice Bakanae Disease and Their Progeny Isolates

Kim, Jung-Mi; Hong, Sung Kee; Kim, Wan Gyu; Lee, Young Kee; Yu, Seung‐Hun; Choi, Hyo-Won

doi:10.4489/kjm.2010.38.1.075

Cited by 11 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The hot water immersion method (Hayasaka et al 2001 ) is ineffective for severely infected rice seeds because the hot water does not make contact with the pericarp of the rice seed. The application of fungicides cannot fully control fungal spores either, and fungicide resistant strains of bakanae have been reported (Ogawa 1988 ; Park et al 2009 ; Kim et al 2010 ; Lee et al 2011 ). Cultivation of resistant cultivars potentially represents a cost-effective and environmentally friendly way to control this disease.…”

Section: Introductionmentioning

confidence: 99%

Molecular mapping of qBK1WD, a major QTL for bakanae disease resistance in rice

Lee¹,

Hur²,

Cho³

et al. 2018

Rice

View full text Add to dashboard Cite

BackgroundBakanae or foot rot disease is a prominent disease of rice caused by Gibberella fujikuroi. This disease may infect rice plants from the pre-emergence stage to the mature stage. In recent years, raising rice seedlings in seed boxes for mechanical transplanting has increased the incidence of many seedling diseases; only a few rice varieties have been reported to exhibit resistance to bakanae disease. In this study, we attempted to identify quantitative trait loci (QTLs) conferring bakanae disease resistance from the highly resistant japonica variety Wonseadaesoo.ResultsA primary QTL study using the genotypes/phenotypes of the recombinant inbred lines (RILs) indicated that the locus qBK1WD conferring resistance to bakanae disease from Wonseadaesoo was located in a 1.59 Mb interval delimited on the physical map between chr01_13542347 (13.54 Mb) and chr01_15132528 (15.13 Mb). The log of odds (LOD) score of qBK1WD was 8.29, accounting for 20.2% of the total phenotypic variation. We further identified a gene pyramiding effect of two QTLs, qBKWD and previously developed qBK1. The mean proportion of healthy plant for 31 F4 RILs that had no resistance genes was 35.3%, which was similar to that of the susceptible check variety Ilpum. The proportion of healthy plants for the lines with only qBKWD or qBK1 was 66.1% and 55.5%, respectively, which was significantly higher than that of the lines without resistance genes and that of Ilpum. The mean proportion of the healthy plant for 15 F4 RILs harboring both qBKWD and qBK1 was 80.2%, which was significantly higher than that of the lines with only qBKWD or qBK1.ConclusionIntroducing qBKWD or pyramiding the QTLs qBKWD and qBK1 could provide effective tools for breeding rice with bakanae disease resistance. To our knowledge, this is the first report on a gene pyramiding effect that provides higher resistance against bakanae disease.Electronic supplementary materialThe online version of this article (10.1186/s12284-017-0197-7) contains supplementary material, which is available to authorized users.

show abstract

Section: Introductionmentioning

confidence: 99%

Molecular mapping of qBK1WD, a major QTL for bakanae disease resistance in rice

Lee¹,

Hur²,

Cho³

et al. 2018

Rice

View full text Add to dashboard Cite

show abstract

“…Thermal effect does not reach the pericarp of the severely infected rice seeds. The application of fungicides is not functioning well for destroying the spores of this fungal pathogen, and some pathogen showed resistance to the fungicides (Ogawa 1988;Park et al 2009;Kim et al 2010;Lee et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Mapping of a major QTL, qBK1Z, for bakanae disease resistance in rice

Lee

Kim

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Bakanae disease is a fungal disease of rice (Oryza sativa L.) caused by the pathogen Gibberella fujikuroi (also known as Fusarium fujikuroi). Recently the disease incidence has increased in several Asian countries and continues to spread throughout the world. No rice varieties have been developed yet to be completely resistant to this disease. With increasing need to identify various genetic resources to impart resistance to local elite varieties, this study was carried out to identify novel quantitative trait loci (QTLs) from an indica variety Zenith. Results: We performed a QTL mapping using 180 F2:9 recombinant inbred lines (RILs) derived from a cross between the resistant variety, Zenith, and the susceptible variety, Ilpum. A primary QTL study using the genotypes and phenotypes of the RILs indicated that the locus qBK1z conferring bakanae disease resistance from the Zenith was located in a 2.8 Mb region bordered by the two SSR markers, RM1331 and RM3530 on chromosome 1. The log of odds (LOD) score of qBK1z was 13.43, accounting for 30.9% of the total phenotypic variation. A finer localization of qBK1z was delimited at an approximate 730 kb interval in the physical map between Chr01_1435908 (1.43 Mbp) and RM10116 (2.16 Mbp).Conclusion: The development of a rice variety with a higher level of resistance against bakanae disease is a major challenge in many rice growing countries. Introducing qBK1z or pyramiding with other previously identified QTLs could provide effective genetic control of bakanae disease in rice.

show abstract

“…Thermal effect does not reach the pericarp of the severely infected rice seeds. The application of fungicides is not functioning well for destroying the spores of this fungal pathogen, and some pathogen showed resistance to the fungicides [13,[16][17][18]. Therefore, the genetic improvement of rice using the QTLs/genes providing the bakane disease resistance would be a more effective way to control bakanae disease.…”

Section: Introductionmentioning

confidence: 99%

Molecular mapping of qBK1^Z, a major QTL for bakanae disease resistance in rice

Lee¹,

Kim

Jo³

et al. 2020

Preprint

View full text Add to dashboard Cite

26Bakanae disease is a fungal disease of rice (Oryza sativa L.) caused by the pathogen Gibberella 27 fujikuroi (also known as Fusarium fujikuroi). Recently the disease incidence has increased in several 28 Asian countries and continues to spread throughout the world. No rice varieties have been developed 29 yet to be completely resistant to this disease. With increasing need to identify various genetic 30 resources to impart resistance to local elite varieties, this study was carried out to identify novel 31 quantitative trait loci (QTLs) from an indica variety Zenith. We performed a QTL mapping using 180 32 F 2:9 recombinant inbred lines (RILs) derived from a cross between the resistant variety, Zenith, and 33 the susceptible variety, Ilpum. A primary QTL study using the genotypes and phenotypes of the RILs 34 indicated that the locus qBK1 z conferring bakanae disease resistance from the Zenith was located in a 35 2.8 Mb region bordered by the two SSR markers, RM1331 and RM3530 on chromosome 1. 36The log of odds (LOD) score of qBK1 z was 13.43, accounting for 30.9% of the total phenotypic 37 variation. A finer localization of qBK1 z was delimited at an approximate 730 kb interval in the 38 physical map between Chr01_1435908 (1.43 Mbp) and RM10116 (2.16 Mbp). The development of a 39 rice variety with a higher level of resistance against bakanae disease is a major challenge in many rice 40 growing countries. Introducing qBK1 z or pyramiding with other previously identified QTLs could 41 provide effective genetic control of bakanae disease in rice. 42 43 G. fujikuroi species complex have been associated with Bakanae disease in rice [3]. This disease 49 typically seed-borne fungus, but may occur when the pathogen is present in plant material or soil. 50 Infected seeds/plants result in secondary infections [4], which spreads through wind or water that 51 carries the fungal spores from one plant to another. Bakanae disease has different symptoms starting 52 from pre-emergence seedling death to grain infection at maturity such as tall, lanky tillers with pale 53 green flag leaves. Infected plants have fewer tillers, and plants surviving till maturity bear only empty 54 panicles [5], resulting in yield loss [6, 7]. Low plant survival and high spikelet sterility [5] may 55account for yield losses up to 50% in Japan [6, 7], 3.0-95% in India [2, 8, 9], 40% in Nepal [10], 75% in Iran [12], and to 28.8% in 57 Korea [13]. Hot water immersion and fungicide treatment are most common ways for seed 3 58 disinfection [2, 14, 15]. However, both the hot water treatment and application of fungicide are 59 insufficient to control bakanae disease. Thermal effect does not reach the pericarp of the severely 60 infected rice seeds. The application of fungicides is not functioning well for destroying the spores of 61 this fungal pathogen, and some pathogen showed resistance to the fungicides [13,[16][17][18]. Therefore, 62

show abstract

Fungicide Resistance of Gibberella fujikuroi Isolates Causing Rice Bakanae Disease and Their Progeny Isolates

Cited by 11 publications

References 10 publications

Molecular mapping of qBK1WD, a major QTL for bakanae disease resistance in rice

Molecular mapping of qBK1WD, a major QTL for bakanae disease resistance in rice

Mapping of a major QTL, qBK1Z, for bakanae disease resistance in rice

Molecular mapping of qBK1^Z, a major QTL for bakanae disease resistance in rice

Contact Info

Product

Resources

About

Fungicide Resistance of Gibberella fujikuroi Isolates Causing Rice Bakanae Disease and Their Progeny Isolates

Cited by 11 publications

References 10 publications

Molecular mapping of qBK1WD, a major QTL for bakanae disease resistance in rice

Molecular mapping of qBK1WD, a major QTL for bakanae disease resistance in rice

Mapping of a major QTL, qBK1Z, for bakanae disease resistance in rice

Molecular mapping of qBK1Z, a major QTL for bakanae disease resistance in rice

Contact Info

Product

Resources

About

Molecular mapping of qBK1^Z, a major QTL for bakanae disease resistance in rice