Identification and Molecular Mapping of Xa32(t), a Novel Resistance Gene for Bacterial Blight (Xanthomonas oryzae pv. oryzae) in Rice

2009 ◽  
Vol 35 (7) ◽  
pp. 1173-1180 ◽  
Author(s):  
Chong-Ke ZHENG ◽  
Chun-Lian WANG ◽  
Yuan-Jie YU ◽  
Yun-Tao LIANG ◽  
Kai-Jun ZHAO
Keyword(s):  
Resistance Gene ◽  
Bacterial Blight ◽  
Molecular Mapping ◽  
Xanthomonas Oryzae

Identification and Molecular Mapping of Xa32(t), a Novel Resistance Gene for Bacterial Blight (Xanthomonas oryzae pv. oryzae) in Rice

2009 ◽  
Vol 35 (7) ◽  
pp. 1173-1180 ◽  
Author(s):  
Chong-Ke ZHENG ◽  
Chun-Lian WANG ◽  
Yuan-Jie YU ◽  
Yun-Tao LIANG ◽  
Kai-Jun ZHAO
Keyword(s):  
Resistance Gene ◽  
Bacterial Blight ◽  
Molecular Mapping ◽  
Xanthomonas Oryzae

scholarly journals Cloning of the rice Xo1 resistance gene and interaction of the Xo1 protein with the defense-suppressing Xanthomonas effector Tal2h

2020 ◽  
Author(s):  
Andrew C. Read ◽  
Mathilde Hutin ◽  
Matthew J. Moscou ◽  
Fabio C. Rinaldi ◽  
Adam J. Bogdanove
Keyword(s):  
Resistance Gene ◽  
Resistance Genes ◽  
Bacterial Blight ◽  
Rice Variety ◽  
Susceptible Variety ◽  
Xanthomonas Oryzae ◽  
Physical Interaction ◽  
Bacterial Leaf Streak ◽  
Transcription Activator ◽  
Rice Leaves

AbstractThe Xo1 locus in the heirloom rice variety Carolina Gold Select confers resistance to bacterial leaf streak and bacterial blight, caused by Xanthomonas oryzae pvs. oryzicola and oryzae, respectively. Resistance is triggered by pathogen-delivered transcription activator-like effectors (TALEs) independent of their ability to activate transcription, and is suppressed by variants called truncTALEs common among Asian strains. By transformation of the susceptible variety Nipponbare, we show that one of 14 nucleotide-binding, leucine-rich repeat (NLR) protein genes at the locus, with a zfBED domain, is the Xo1 gene. Analyses of published transcriptomes revealed that the Xo1-mediated response is similar to those of NLR resistance genes Pia and Rxo1 and distinct from that associated with induction of the executor resistance gene Xa23, and that a truncTALE dampens or abolishes activation of defense-associated genes by Xo1. In Nicotiana benthamiana leaves, fluorescently-tagged Xo1 protein, like TALEs and truncTALEs, localized to the nucleus. And, endogenous Xo1 specifically co-immunoprecipitated from rice leaves with a pathogen-delivered, epitope-tagged truncTALE. These observations suggest that suppression of Xo1-function by truncTALEs occurs through direct or indirect physical interaction. They further suggest that effector co-immunoprecipitation may be effective for identifying or characterizing other resistance genes.

Identification of resistance sources in wild species of rice against two recently evolved pathotypes ofXanthomonas oryzaepvoryzae

2016 ◽  
Vol 15 (6) ◽  
pp. 558-562 ◽  
Author(s):  
Kumari Neelam ◽  
Jagjeet Singh Lore ◽  
Karminderbir Kaur ◽  
Shivali Pathania ◽  
Kishor Kumar ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Wild Species ◽  
Partial Resistance ◽  
Bacterial Blight ◽  
Immune Reaction ◽  
Rice Production ◽  
Xanthomonas Oryzae ◽  
Oryza Glaberrima ◽  
A Genome ◽  
The Individual

AbstractBacterial blight (BB) of rice caused byXanthomonas oryzaepv.oryzae(Xoo) is a major biotic constraint of rice production in all the major irrigated/lowland rice growing regions of Asia, including Punjab and its adjoining states in India. None of the individual BB resistantXa/xagenes is effective against Punjab pathotypes. In the present study, we have screened 1176 accessions, comprising 1007 accessions of A genome speciesOryza glaberrima, O. barthii, O. nivara, O. rufipogon, O. longistaminata, O. meridionalis, O. glumaepatulaand 169 accessions from ten other wild species having CC, FF, EE, BBCC and CCDD genomes against two most recently evolvedXoopathotypes viz. PbXo-10 and PbXo-8 in Punjab state of India, for two constitutive years 2014 and 2015. Based on 2 years of data, four accessions ofO. glaberrima(IRGC102206, IRGC1022445, IRGC102512 and IRGC102520) and two of theO. longistaminataaccessions (IRGC92624 and IRGC101754) were identified with immune reaction against PbXo-8. For PbXo-10,O. longistaminatashowed large number of accessions with complete to partial resistance followed byO. rufipogon(8),O. nivara(2),O. punctata(2) andO. officinalis(1). Two of theO. longistaminataaccessions IRGC92624 and IRGC92644 from Mali were found to have resistance against both theXoopathotypes indicating presence of BB resistance gene other thanXa21. These can be transferred to elite cultivars ofO. sativafor better management of BB.

Identification of new sources of bacterial blight (Xanthomonas oryzae pv. oryzae) resistance in wild Oryza species and O. glaberrima

2007 ◽  
Vol 5 (02) ◽  
pp. 108-112 ◽  
Author(s):  
Yogesh Vikal ◽  
Aparna Das ◽  
B. Patra ◽  
R. K. Goel ◽  
J. S. Sidhu ◽  
...  
Keyword(s):  
Resistance Genes ◽  
Bacterial Blight ◽  
Molecular Mapping ◽  
Specific Resistance ◽  
Xanthomonas Oryzae ◽  
Western India ◽  
Tropical Asia ◽  
Moderately Resistant ◽  
North Western ◽  
Wild Oryza Species

Bacterial blight (BB) of rice is a widespread disease in tropical Asia, contained largely through the deployment of race-specific resistance genes. Although more than 25 BB resistance genes have been identified, none are effective individually against all the pathotypes prevalent in north-western India. The response of a set of 327 accessions of 13 wildOryzaspecies and cultivated African rice,O.glaberrima, was evaluated to infection with seven pathotypes ofXanthomonas oryzaepv.oryzaeover a period of 3–4 years. Of these, 67 were resistant or moderately resistant to all pathotypes. These comprised 13 accessions ofO.glaberrima, 5 ofO. barthii, 10 ofO.rufipogon, 4 ofO.longistaminata, 22 ofO.nivara, 6 ofO.officinalis, 2 ofO.rhizomatisand 5 ofO.minuta. Inheritance studies, molecular mapping and transfer of some of these genes intoO.sativassp.indicaare in progress.

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