- Information
- Symbol: Pb1
- MSU: LOC_Os11g37050
- RAPdb: Os11g0579200
- PSP score
- LOC_Os11g37050.1: 0.2061
- PLAAC score
- LOC_Os11g37050.1: 0
- pLDDT score
- NA
- Publication
- Identification of a RFLP Marker Tightly Linked to the Panicle Blast Resistance Gene, Pb1, in Rice, 2000, Breeding Science.
- Durable panicle blast-resistance gene Pb1 encodes an atypical CC-NBS-LRR protein and was generated by acquiring a promoter through local genome duplication, 2010, Plant J.
- Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, 2013, Proc Natl Acad Sci U S A.
- Panicle blast 1 Pb1 resistance is dependent on at least four QTLs in the rice genome., 2017, Rice (N Y).
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Genbank accession number
- Key message
- Pb1 encodes a coiled-coil-nucleotide-binding site-leucine-rich repeat (CC-NB-LRR) protein and confers durable, broad-spectrum resistance to Magnaporthe oryzae races
- Panicle blast 1 (Pb1) is a blast-resistance gene derived from the indica cultivar ‘Modan’
- Pb1-mediated resistance, which is characterized by durability of resistance and adult/panicle blast resistance, has been introduced into elite varieties for commercial cultivation
- We discuss possible determinants for the durability of Pb1-mediated blast resistance
- Durable panicle blast-resistance gene Pb1 encodes an atypical CC-NBS-LRR protein and was generated by acquiring a promoter through local genome duplication
- Panicle blast 1 (Pb1) is a panicle blast resistance gene derived from the indica rice cultivar Modan
- Here, we investigated the molecular mechanisms underlying Pb1-mediated blast resistance
- Pb1-mediated panicle blast resistance was largely compromised when WRKY45 was knocked down in a Pb1-containing rice cultivar
- Leaf-blast resistance by Pb1 overexpression (Pb1-ox) was also compromised in WRKY45 knockdown/Pb1-ox rice
- Blast infection induced higher accumulation of WRKY45 in Pb1-ox than in control Nipponbare rice
- Overexpression of Pb1-Quad, a coiled-coil domain mutant that had weak interaction with WRKY45, resulted in significantly weaker blast resistance than that of wild-type Pb1
- Overexpression of Pb1 with a nuclear export sequence failed to confer blast resistance to rice
- These results suggest that the blast resistance of Pb1 depends on its interaction with WRKY45 in the nucleus
- In a transient system using rice protoplasts, coexpression of Pb1 enhanced WRKY45 accumulation and increased WRKY45-dependent transactivation activity, suggesting that protection of WRKY45 from ubiquitin proteasome system degradation is possibly involved in Pb1-dependent blast resistance
- Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction
- Based on the cosegregation of the resistant genotypes of Pb1 and Stvb-i, a rice stripe virus (RSV) resistance gene derived from an Indica cultivar Modan, we examined the linkage relationships between Pb1 and 13 Stvb-i-linked RFLP markers located on the long arm of chromosome 11
- Pb1 transcript levels increased during the development of Pb1+ cultivars; this expression pattern accounts for their adult/panicle resistance
- The Pb1 protein interacted with WRKY45, a transcription factor involved in induced resistance via the salicylic acid signaling pathway that is regulated by the ubiquitin proteasome system
- We precisely mapped the Pb1 locus for the panicle blast resistence of a quantitative nature on rice chromosome 11 using RFLP markers
- Identification of a RFLP Marker Tightly Linked to the Panicle Blast Resistance Gene, Pb1, in Rice
- Pb1 is classified as a quantitative resistance gene and it does not have fungal specificity
- Mapping of QTL related to Chr7 confirmed the existence of factors that were required for the resistance of Pb1 in the 22 to 23 Mbp region of the rice genome
- We clarified how the K209 cultivar is vulnerable to the blast disease despite possessing Pb1 and found the DNA marker responsible for the quantitative resistance of Pb1
- We found that the expression of WRKY45 gene downstream of Pb1 was weakly induced by rice blast inoculation at the full heading stage in K209
- Connection
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, The Pb1 protein interacted with WRKY45, a transcription factor involved in induced resistance via the salicylic acid signaling pathway that is regulated by the ubiquitin proteasome system
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, Pb1-mediated panicle blast resistance was largely compromised when WRKY45 was knocked down in a Pb1-containing rice cultivar
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, Leaf-blast resistance by Pb1 overexpression (Pb1-ox) was also compromised in WRKY45 knockdown/Pb1-ox rice
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, Blast infection induced higher accumulation of WRKY45 in Pb1-ox than in control Nipponbare rice
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, Overexpression of Pb1-Quad, a coiled-coil domain mutant that had weak interaction with WRKY45, resulted in significantly weaker blast resistance than that of wild-type Pb1
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, These results suggest that the blast resistance of Pb1 depends on its interaction with WRKY45 in the nucleus
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, In a transient system using rice protoplasts, coexpression of Pb1 enhanced WRKY45 accumulation and increased WRKY45-dependent transactivation activity, suggesting that protection of WRKY45 from ubiquitin proteasome system degradation is possibly involved in Pb1-dependent blast resistance
- OsWRKY45~WRKY45, Pb1, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction, Blast resistance of CC-NB-LRR protein Pb1 is mediated by WRKY45 through protein-protein interaction
- OsFBK1, Pb1, Analysis of drought-responsive signalling network in two contrasting rice cultivars using transcriptome-based approach., OsFBK1 was also functionally validated in susceptible PB1 rice cultivar and Arabidopsis for providing drought tolerance
- OsWRKY45~WRKY45, Pb1, Panicle blast 1 Pb1 resistance is dependent on at least four QTLs in the rice genome., We found that the expression of WRKY45 gene downstream of Pb1 was weakly induced by rice blast inoculation at the full heading stage in K209
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