Inheritance of Resistance of the Rice Variety Pi No. 4 to Blast

Kiyosawa, Shigehisa

doi:10.1270/jsbbs1951.17.165

Cited by 26 publications

(18 citation statements)

References 3 publications

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“…Several resistance genes, Pita (Kiyosawa 1966), Pita-2 (Kiyosawa 1967), Pik-h (Kiyosawa and Murty 1969), Pik-p (Kiyosawa 1969), Piz-t (Yokoo and Kiyosawa 1970), Pib and Pit (Yokoo et al 1978), Pi6(t) (Yu 1991), Pi11(t) [Piz-h] (Zhu et al 1993), Pi8 (Pan et al 1996), Pi16(t) (Pan et al 1999) and Pi17(t) (RGC 1996) have been identified in Indica-type varieties. Regarding IRRI-bred varieties, FloresGaxiola et al (1983) reported the presence of two complementary genes and one dominant gene in the genetic analysis using hybrid progenies derived from a cross between IR8 and Tetep.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Genes in Blast Resistance in Elite Indica-type Rice (Oryza sativa L.) Varieties-bred at the International Rice Research Institute

et al. 2004

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Section: Introductionmentioning

confidence: 99%

Estimation of Genes in Blast Resistance in Elite Indica-type Rice (Oryza sativa L.) Varieties-bred at the International Rice Research Institute

et al. 2004

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“…The cluster of R genes linked to the centromere on chromosome 12 includes the allelic or tightly linked Pi-ta and Pi-ta 2 genes identified by Kiyosawa and colleagues (Kiyosawa, 1971; Rybka et al, 1997). The relationship between these two indica-derived R genes appears to be complex, and some investigators have reported that Pi-ta is required for function of Pi-ta 2 (Kiyosawa, 1967(Kiyosawa, , 1971Silué et al, 1992Silué et al, , 1993Rybka et al, 1997). Other R genes, including Pi-4 a (t) , Pi-4 b (t) , Pi-6(t) , and , have been mapped to the centromeric region of chromosome 12 (Inukai et al, 1994;Yu et al, 1996;Zheng et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

A Single Amino Acid Difference Distinguishes Resistant and Susceptible Alleles of the Rice Blast Resistance Gene Pi-ta

et al. 2000

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The rice blast resistance (R) gene Pi-ta mediates gene-for-gene resistance against strains of the fungus Magnaporthe grisea that express avirulent alleles of AVR-Pita. Using a map-based cloning strategy, we cloned Pi-ta, which is linked to the centromere of chromosome 12. Pi-ta encodes a predicted 928-amino acid cytoplasmic receptor with a centrally localized nucleotide binding site. A single-copy gene, Pi-ta shows low constitutive expression in both resistant and susceptible rice. Susceptible rice varieties contain pi-ta(-) alleles encoding predicted proteins that share a single amino acid difference relative to the Pi-ta resistance protein: serine instead of alanine at position 918. Transient expression in rice cells of a Pi-ta(+) R gene together with AVR-Pita(+) induces a resistance response. No resistance response is induced in transient assays that use a naturally occurring pi-ta(-) allele differing only by the serine at position 918. Rice varieties reported to have the linked Pi-ta(2) gene contain Pi-ta plus at least one other R gene, potentially explaining the broadened resistance spectrum of Pi-ta(2) relative to Pi-ta. Molecular cloning of the AVR-Pita and Pi-ta genes will aid in deployment of R genes for effective genetic control of rice blast disease.

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“…In addition, analysis of sequences at the Pi9 locus in a group of genetically distinct cultivars has revealed the complex and divergent genome organization of this locus (Zhou et al 2007). Two blast resistance genes, Pita and Pita2, have been located at the Pita locus on chromosome 12 (Kiyosawa 1967;Rybka et al 1997;Bryan et al 2000). These two genes are interesting in terms of their resistance specificity: Pita2 has a broader resistance spectrum than Pita.…”

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confidence: 99%

Two Adjacent Nucleotide-Binding Site–Leucine-Rich Repeat Class Genes Are Required to Confer Pikm-Specific Rice Blast Resistance

Ashikawa

Hayashi

Yamane³

et al. 2008

Genetics

361

275

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The rice blast resistance gene Pikm was cloned by a map-based cloning strategy. High-resolution genetic mapping and sequencing of the gene region in the Pikm-containing cultivar Tsuyuake narrowed down the candidate region to a 131-kb genomic interval. Sequence analysis predicted two adjacently arranged resistance-like genes, Pikm1-TS and Pikm2-TS, within this candidate region. These genes encoded proteins with a nucleotide-binding site (NBS) and leucine-rich repeats (LRRs) and were considered the most probable candidates for Pikm. However, genetic complementation analysis of transgenic lines individually carrying these two genes negated the possibility that either Pikm1-TS or Pikm2-TS alone was Pikm. Instead, it was revealed that transgenic lines carrying both of these genes expressed blast resistance. The results of the complementation analysis and an evaluation of the resistance specificity of the transgenic lines to blast isolates demonstrated that Pikm-specific resistance is conferred by cooperation of Pikm1-TS and Pikm2-TS. Although these two genes are not homologous with each other, they both contain all the conserved motifs necessary for an NBS-LRR class gene to function independently as a resistance gene.

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Inheritance of Resistance of the Rice Variety Pi No. 4 to Blast

Cited by 26 publications

References 3 publications

Estimation of Genes in Blast Resistance in Elite Indica-type Rice (Oryza sativa L.) Varieties-bred at the International Rice Research Institute

Estimation of Genes in Blast Resistance in Elite Indica-type Rice (Oryza sativa L.) Varieties-bred at the International Rice Research Institute

A Single Amino Acid Difference Distinguishes Resistant and Susceptible Alleles of the Rice Blast Resistance Gene Pi-ta

Two Adjacent Nucleotide-Binding Site–Leucine-Rich Repeat Class Genes Are Required to Confer Pikm-Specific Rice Blast Resistance

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