ArticlePlanta2013
Analysis of nucleotide diversity among alleles of the major bacterial blight resistance gene Xa27 in cultivars of rice (Oryza sativa) and its wild relatives.
Article in Planta, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- Establishment of Functional PCR-Based Markers against Bacterial Leaf Blight Disease in Rice Landraces of Yunnan Province of China.Life (Basel, Switzerland) · 2023Article
- Integrated Molecular and Bioinformatics Approaches for Disease-Related Genes in Plants.Plants (Basel, Switzerland) · 2023Review
- TALE-induced cell death executors: an origin outside immunity?Trends in plant science · 2022Review
- Research Progress on Cloning and Function ofFrontiers in plant science · 2022Review
- Deployment of Genetic and Genomic Tools Toward Gaining a Better Understanding of Rice-Frontiers in plant science · 2020Review
- Article
- Promoter variants of Xa23 alleles affect bacterial blight resistance and evolutionary pattern.PloS one · 2017Article
- Identification of novel major and minor QTLs associated with Xanthomonas oryzae pv. oryzae (African strains) resistance in rice (Oryza sativa L.).Rice (New York, N.Y.) · 2016Article
- Disease Resistance Gene Analogs (RGAs) in Plants.International journal of molecular sciences · 2015Review
- TAL effectors and the executor R genes.Frontiers in plant science · 2015Review
- Nucleotide diversity analysis of three major bacterial blight resistance genes in rice.PloS one · 2015Article
- Genetic diversity of the conserved motifs of six bacterial leaf blight resistance genes in a set of rice landraces.BMC genetics · 2014Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Xa27 is one of the important R-genes, effective against bacterial blight disease of rice caused by Xanthomonas oryzae pv. oryzae (Xoo). Using natural population of Oryza, we analyzed the sequence variation in the functionally important domains of Xa27 across the Oryza species. DNA sequences of Xa27 alleles from 27 rice accessions revealed higher nucleotide diversity among the reported R-genes of rice. Sequence polymorphism analysis revealed synonymous and non-synonymous mutations in addition to a number of InDels in non-coding regions of the gene. High sequence variation was observed in the promoter region including the 5'UTR with 'π' value 0.00916 and 'θ w ' = 0.01785. Comparative analysis of the identified Xa27 alleles with that of IRBB27 and IR24 indicated the operation of both positive selection (Ka/Ks > 1) and neutral selection (Ka/Ks ≈ 0). The genetic distances of alleles of the gene from Oryza nivara were nearer to IRBB27 as compared to IR24. We also found the presence of conserved and null UPT (upregulated by transcriptional activator) box in the isolated alleles. Considerable amino acid polymorphism was localized in the trans-membrane domain for which the functional significance is yet to be elucidated. However, the absence of functional UPT box in all the alleles except IRBB27 suggests the maintenance of single resistant allele throughout the natural population.
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