Genome-wide gene responses in a transgenic rice line carrying the maize resistance gene Rxo1 to the rice bacterial streak pathogen Xanthomonas oryzae pv. oryzicola

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cg.identifier.doihttps://doi.org/10.1186/1471-2164-11-78en_US
cg.issn1471-2164en_US
cg.issue1en_US
cg.journalBMC Genomicsen_US
cg.volume11en_US
dc.contributor.authorZhou, Yong-Lien_US
dc.contributor.authorXu, Mei-Rongen_US
dc.contributor.authorZhao, Ming-Fuen_US
dc.contributor.authorXie, Xue-Wenen_US
dc.contributor.authorZhu, Ling-Huaen_US
dc.contributor.authorFu, Bin-Yingen_US
dc.contributor.authorLi, Zhi-Kangen_US
dc.date.accessioned2024-12-19T12:55:51Zen_US
dc.date.available2024-12-19T12:55:51Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/166078en_US
dc.titleGenome-wide gene responses in a transgenic rice line carrying the maize resistance gene Rxo1 to the rice bacterial streak pathogen Xanthomonas oryzae pv. oryzicolaen_US
dcterms.abstractNon-host resistance in rice to its bacterial pathogen, Xanthomonas oryzae pv. oryzicola (Xoc), mediated by a maize NBS-LRR type R gene, Rxo1 shows a typical hypersensitive reaction (HR) phenotype, but the molecular mechanism(s) underlying this type of non-host resistance remain largely unknown.A microarray experiment was performed to reveal the molecular mechanisms underlying HR of rice to Xoc mediated by Rxo1 using a pair of transgenic and non-transgenic rice lines. Our results indicated that Rxo1 appeared to function in the very early step of the interaction between rice and Xoc, and could specifically activate large numbers of genes involved in signaling pathways leading to HR and some basal defensive pathways such as SA and ET pathways. In the former case, Rxo1 appeared to differ from the typical host R genes in that it could lead to HR without activating NDR1. In the latter cases, Rxo1 was able to induce a unique group of WRKY TF genes and a large set of genes encoding PPR and RRM proteins that share the same G-box in their promoter regions with possible functions in post-transcriptional regulation.In conclusion, Rxo1, like most host R genes, was able to trigger HR against Xoc in the heterologous rice plants by activating multiple defensive pathways related to HR, providing useful information on the evolution of plant resistance genes. Maize non-host resistance gene Rxo1 could trigger the pathogen-specific HR in heterologous rice, and ultimately leading to a localized programmed cell death which exhibits the characteristics consistent with those mediated by host resistance genes, but a number of genes encoding pentatricopeptide repeat and RNA recognition motif protein were found specifically up-regulated in the Rxo1 mediated disease resistance. These results add to our understanding the evolution of plant resistance genes.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2010-02-01en_US
dcterms.bibliographicCitationZhou, Yong-Li; Xu, Mei-Rong; Zhao, Ming-Fu; Xie, Xue-Wen; Zhu, Ling-Hua; Fu, Bin-Ying and Li, Zhi-Kang. 2010. Genome-wide gene responses in a transgenic rice line carrying the maize resistance gene Rxo1 to the rice bacterial streak pathogen Xanthomonas oryzae pv. oryzicola. BMC Genomics, Volume 11, no. 1en_US
dcterms.issued2010-12en_US
dcterms.languageenen_US
dcterms.publisherSpringeren_US
dcterms.subjectapoptosisen_US
dcterms.subjectdisease resistanceen_US
dcterms.subjectdna microarraysen_US
dcterms.subjectgenesen_US
dcterms.subjectgene expressionen_US
dcterms.subjectgenetic transformationen_US
dcterms.subjectplant pathogensen_US
dcterms.subjectpromotersen_US
dcterms.subjectsignal transductionen_US
dcterms.subjecttranscriptionen_US
dcterms.subjecttransgenic plantsen_US
dcterms.subjectxanthomonas oryzae pven_US
dcterms.subjectoryzicolaen_US
dcterms.typeJournal Articleen_US

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