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plant:rice [2026/04/20 12:45] – rkoebnikplant:rice [2026/06/26 09:49] (current) – [References] rkoebnik
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 The immune receptor XA21 is cleaved by the rhomboid-like protease OsRBL3b, likely within its transmembrane domain, which protects grain set and male fertility in rice. This balance between reproduction and disease resistance through the specific expression of a rhomboid protease may be key to limiting the detrimental effects of an active immune response (Vergish et al., 2025). The immune receptor XA21 is cleaved by the rhomboid-like protease OsRBL3b, likely within its transmembrane domain, which protects grain set and male fertility in rice. This balance between reproduction and disease resistance through the specific expression of a rhomboid protease may be key to limiting the detrimental effects of an active immune response (Vergish et al., 2025).
 +
 +The immune receptor XA21 causes semi-male sterility and grain loss in rice at a low temperature (24°C) and in a dose-dependent manner. This finding may explain the abundant accumulation of 17 transposable-like elements previously observed in the //Xa21// locus (de Toledo Franceschi et al., 2025).
  
 The small secreted peptide OsRALF26, previously identified as an //Oryza//-specific ligand for FERONIA-like receptor 1 (OsFLR1), is also directly perceived by XA21. OsRALF26 as a host-derived ligand of XA21 is required for full activation of XA21-mediated immunity in distal tissues, consistent with a role for OsRALF26 in spatial propagation of XA21-dependent defence (Kwon //et al.//, 2026). The small secreted peptide OsRALF26, previously identified as an //Oryza//-specific ligand for FERONIA-like receptor 1 (OsFLR1), is also directly perceived by XA21. OsRALF26 as a host-derived ligand of XA21 is required for full activation of XA21-mediated immunity in distal tissues, consistent with a role for OsRALF26 in spatial propagation of XA21-dependent defence (Kwon //et al.//, 2026).
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 ---- ----
  
-==== Resistance gene: //Xa47// ====+==== Resistance gene: //Xa48// ====
  
 === Synonyms === === Synonyms ===
  
-//NA//+//LOC_Os03g48370//
 === Source === === Source ===
  
-G252 rice line, a BC<sub>2</sub> F<sub>16</sub> generation material of the Yuanjiang common wild rice infiltration line (//Oryza rufipogon//) (Xing //et al.//, 2021; Lu //et al.//, 2022).+//Oryza sativa indica// Shuangkeza (Lin //et al.//, 2026).
 === Status (identified, mapped, cloned, sequenced) === === Status (identified, mapped, cloned, sequenced) ===
  
-Identified and mapped on the long arm of chromosome 11 (Xing //et al.//, 2021). Cloned and sequenced (Lu //et al.//, 2022).+Identified and mapped on chromosome 3 (Lin //et al.//, 2026). Cloned and sequenced (Lin //et al.//, 2026).
 === Molecular markers === === Molecular markers ===
  
-Available (Xing //et al.//, 2021; Lu //et al.//, 2022).+InDel markers (Lin //et al.//, 2026).
 === Brief description === === Brief description ===
  
-Members of the nucleotide-binding domain and leucine-rich repeat containing protein (NLR) family. +Member of the nucleotide-binding site and leucine-rich repeat (NLR) receptor family. XA48 perceives the ancient pathogen effector XopG, activating effector-triggered immunity by degrading the negative regulator OsVOZ1/2 (Lin //et al.//, 2026).
- +
-=== Other resources === +
- +
-[[https://funricegenes.github.io/LOC_Os11g46200/|FunRiceGenes]].+
  
 ---- ----
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 Chu Z, Yuan M, Yao J, Ge X, Yuan B, Xu C, Li X, Fu B, Li Z, Bennetzen JL, Zhang Q, Wang S (2006). Promoter mutations of an essential gene for pollen development result in disease resistance in rice. Genes Dev. 20: 1250-1255. DOI: [[https://doi.org/10.1101/gad.1416306|10.1101/gad.1416306]] Chu Z, Yuan M, Yao J, Ge X, Yuan B, Xu C, Li X, Fu B, Li Z, Bennetzen JL, Zhang Q, Wang S (2006). Promoter mutations of an essential gene for pollen development result in disease resistance in rice. Genes Dev. 20: 1250-1255. DOI: [[https://doi.org/10.1101/gad.1416306|10.1101/gad.1416306]]
 +
 +de Toledo Franceschi B, Vergish S, Singh Y, Li JL, Shamsunnaher, Ding GL, Chen S, Song WY (2025). The immune receptor XA21 causes semi-male sterility and grain loss in rice. Front. Plant Sci. 16: 1673821. DOI: [[https://doi.org/10.3389/fpls.2025.1673821|10.3389/fpls.2025.1673821]]
  
 Endo T, Nakamura T, Yonemaru J, Ishikawa G, Yamaguchi M, Kataoka T, Nakagomi K, Yokogami N (2009). Genetic analysis of resistance against bacterial leaf blight and leaf blast disease in the Japanese rice cultivar Asominori. In: G.-L. Wang and B.Valent (eds.) Advances in Genetics, Genomics and Control of Rice Blast Disease, Springer, pp. 305-313. Endo T, Nakamura T, Yonemaru J, Ishikawa G, Yamaguchi M, Kataoka T, Nakagomi K, Yokogami N (2009). Genetic analysis of resistance against bacterial leaf blight and leaf blast disease in the Japanese rice cultivar Asominori. In: G.-L. Wang and B.Valent (eds.) Advances in Genetics, Genomics and Control of Rice Blast Disease, Springer, pp. 305-313.
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 Liang LQ, Wang CY, Zeng LX, Wang WJ, Feng JQ, Chen B, Su J, Chen S, Shang FD, Zhu XY, Lin F (2017). The rice cultivar Baixiangzhan harbours a recessive gene //xa42// (//t//) determining resistance against //Xanthomonas oryzae// pv. //oryzae//. Plant Breed. 136: 603-609. DOI: [[https://doi.org/10.1111/pbr.12493|10.1111/pbr.12493]] Liang LQ, Wang CY, Zeng LX, Wang WJ, Feng JQ, Chen B, Su J, Chen S, Shang FD, Zhu XY, Lin F (2017). The rice cultivar Baixiangzhan harbours a recessive gene //xa42// (//t//) determining resistance against //Xanthomonas oryzae// pv. //oryzae//. Plant Breed. 136: 603-609. DOI: [[https://doi.org/10.1111/pbr.12493|10.1111/pbr.12493]]
  
-Lin XH, Zhang DP,Xie YF, Gao HP, Zhang Q (1996). Identifying and mapping a new gene for bacterial blight resistance in rice based on RFLP markers. Phytopathology 86: 1156-1159. Full text @ [[https://www.apsnet.org/publications/phytopathology/backissues/Documents/1996Abstracts/Phyto_86_1156.htm|APS]]+Lin H, Chen F, Cheng G, Yan B, Yuan M, Qiu J, Lu Y, Suo M, Chen Y, Wang Y, Cui K, Gong X, Liu S, Liu B, Liu J, Wang J, Li R, Mao B, Xu J, Jeon JS, Huang X, Han B, Yang DL, Gao Q, Xu H, Deng Y, Chen G, He Z (2026). Asymmetric selection of a rice immune module and rebuild of disease resistance. Nature 653: 840-849. DOI: [[https://doi.org/10.1038/s41586-026-10361-6|10.1038/s41586-026-10361-6]] 
 + 
 +Lin XH, Zhang DP, Xie YF, Gao HP, Zhang Q (1996). Identifying and mapping a new gene for bacterial blight resistance in rice based on RFLP markers. Phytopathology 86: 1156-1159. Full text @ [[https://www.apsnet.org/publications/phytopathology/backissues/Documents/1996Abstracts/Phyto_86_1156.htm|APS]]
  
 Liu HX, Liu FQ, Hu BS, Yang WF, Chen ZY, Xu ZG (2004). Virulence of //Xanthomonas oryzae// pv. //oryzae// on rice near-isogenic lines with single resistance gene and pyramiding lines in China. Agric. Sci. China 3: 764-769. Liu HX, Liu FQ, Hu BS, Yang WF, Chen ZY, Xu ZG (2004). Virulence of //Xanthomonas oryzae// pv. //oryzae// on rice near-isogenic lines with single resistance gene and pyramiding lines in China. Agric. Sci. China 3: 764-769.
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 Joshi JB, Arul L, Ramalingam J, Uthandi S (2020). Advances in the //Xoo//-rice pathosystem interaction and its exploitation in disease management. J. Biosci. 45: 112. DOI: [[https://doi.org/10.1007/s12038-020-00085-8|10.1007/s12038-020-00085-8]] Joshi JB, Arul L, Ramalingam J, Uthandi S (2020). Advances in the //Xoo//-rice pathosystem interaction and its exploitation in disease management. J. Biosci. 45: 112. DOI: [[https://doi.org/10.1007/s12038-020-00085-8|10.1007/s12038-020-00085-8]]
 +
 +Li C, Ji H, Liang C, Sun L, Lu J, Yang B (2026). Effector triggered susceptibility and immunity in bacterial diseases of leaf blight and streak in rice. Rice (N Y) 19: 23. DOI: [[https://doi.org/10.1186/s12284-026-00885-w|10.1186/s12284-026-00885-w]]
  
 Li J, Shi X, Wang C, Li Q, Lu J, Zeng D, Xie J, Shi Y, Zhai W, Zhou Y (2023). Genome-wide association study identifies resistance loci for bacterial blight in a collection of Asian temperate //Japonica// rice germplasm. Int. J. Mol. Sci. 24: 8810. DOI: [[https://doi.org/10.3390/ijms24108810|10.3390/ijms24108810]] Li J, Shi X, Wang C, Li Q, Lu J, Zeng D, Xie J, Shi Y, Zhai W, Zhou Y (2023). Genome-wide association study identifies resistance loci for bacterial blight in a collection of Asian temperate //Japonica// rice germplasm. Int. J. Mol. Sci. 24: 8810. DOI: [[https://doi.org/10.3390/ijms24108810|10.3390/ijms24108810]]
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 Verdier V, Vera Cruz C, Leach JE (2012). Controlling rice bacterial blight in Africa: needs and prospects. J. Biotechnol. 159: 320-328. DOI: [[https://doi.org/10.1016/j.jbiotec.2011.09.020|10.1016/j.jbiotec.2011.09.020]] Verdier V, Vera Cruz C, Leach JE (2012). Controlling rice bacterial blight in Africa: needs and prospects. J. Biotechnol. 159: 320-328. DOI: [[https://doi.org/10.1016/j.jbiotec.2011.09.020|10.1016/j.jbiotec.2011.09.020]]
 +
 +Wu T, Huang Y, Tan L, Zhang Q (2026). Genetic breeding and biocontrol strategies for managing bacterial leaf streak in rice: A comprehensive review. Plant Stress 22: 101445. DOI: [[https://doi.org/10.1016/j.stress.2026.101445|10.1016/j.stress.2026.101445]]
  
 Yang Y, Zhou Y, Sun J, Liang W, Chen X, Wang X, Zhou J, Yu C, Wang J, Wu S, Yao X, Zhou Y, Zhu J, Yan C, Zheng B, Chen J (2022). Research progress on cloning and function of //Xa// genes against rice bacterial blight. Front. Plant Sci. 13: 847199. DOI: [[https://doi.org/10.3389/fpls.2022.847199|10.3389/fpls.2022.847199]] Yang Y, Zhou Y, Sun J, Liang W, Chen X, Wang X, Zhou J, Yu C, Wang J, Wu S, Yao X, Zhou Y, Zhu J, Yan C, Zheng B, Chen J (2022). Research progress on cloning and function of //Xa// genes against rice bacterial blight. Front. Plant Sci. 13: 847199. DOI: [[https://doi.org/10.3389/fpls.2022.847199|10.3389/fpls.2022.847199]]
plant/rice.1776685520.txt.gz · Last modified: 2026/04/20 12:45 by rkoebnik

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