ArticleBMC plant biology2020
Allele mining unlocks the identification of RYMV resistance genes and alleles in African cultivated rice.
Article in BMC plant biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 34 citations in OpenAlex.
- Enhanced Rice Yellow Mottle Virus Resistance via CRISPR/Cas9-Targeted Mutagenesis of the Rice eIF(iso)4G Gene.Molecular plant pathology · 2026Article
- Fertile interspecific diploid hybrids between the Asian and African rice species facilitated by tetraploidization and its reduction.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- RNA-Binding Proteome-Wide Analysis Reveals Rice RNA-Binding Proteins Enriched After Sobemovirus Rice Yellow Mottle Virus Infection.Plant direct · 2025Article
- Breeding D1-Type HybridInternational journal of molecular sciences · 2025Article
- Rice Yellow Mottle Virus (RYMV): A Review.Viruses · 2024Review
- Rice Yellow Mottle Virus resistance by genome editing of the Oryza sativa L. ssp. japonica nucleoporin gene OsCPR5.1 but not OsCPR5.2.Plant biotechnology journal · 2024Article
- Genetic diversity and epidemic histories of rice yellow mottle virus in Ghana.Virus research · 2023Article
- Molecular Tools to Infer Resistance-Breaking Abilities of Rice Yellow Mottle Virus Isolates.Viruses · 2023Article
- Available cloned genes and markers for genetic improvement of biotic stress resistance in rice.Frontiers in plant science · 2023Review
- A Review of Vector-Borne Rice Viruses.Viruses · 2022Review
- Genetic characterization and fine mapping ofMolecular breeding : new strategies in plant improvement · 2022Article
- Prediction of NB-LRR resistance genes based on full-length sequence homology.The Plant journal : for cell and molecular biology · 2022Article
- Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus in Benin and Effects of Silicon on Host Response.The plant pathology journal · 2021Article
- Insights Into Natural Genetic Resistance to Rice Yellow Mottle Virus and Implications on Breeding for Durable Resistance.Frontiers in plant science · 2021Review
- Genome Wide Association Study Pinpoints Key Agronomic QTLs in African Rice Oryza glaberrima.Rice (New York, N.Y.) · 2020Article
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Authors and funding
4 authors at 1 institution in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundRice yellow mottle virus (RYMV) is a major rice pathogen in Africa. Three resistance genes, i.e. RYMV1, RYMV2 and RYMV3, have been previously described. RYMV1 encodes the translation initiation factor eIF(iso)4G1 and the best candidate genes for RYMV2 and RYMV3 encode a homolog of an Arabidopsis nucleoporin (CPR5) and a nucleotide-binding domain and leucine-rich repeat containing domain (NLR) protein, respectively. High resistance is very uncommon in Asian cultivated rice (Oryza sativa), with only two highly resistant accessions identified so far, but it is more frequent in African cultivated rice (Oryza glaberrima).
resultsHere we report the findings of a resistance survey in a reference collection of 268 O. glaberrima accessions. A total of 40 resistant accessions were found, thus confirming the high frequency of resistance to RYMV in this species. We analysed the variability of resistance genes or candidate genes in this collection based on high-depth Illumina data or Sanger sequencing. Alleles previously shown to be associated with resistance were observed in 31 resistant accessions but not in any susceptible ones. Five original alleles with a frameshift or untimely stop codon in the candidate gene for RYMV2 were also identified in resistant accessions. A genetic analysis revealed that these alleles, as well as T-DNA insertions in the candidate gene, were responsible of RYMV resistance. All 40 resistant accessions were ultimately linked to a validated or candidate resistance allele at one of the three resistance genes to RYMV.
conclusionThis study demonstrated that the RYMV2 resistance gene is homologous to the Arabidopsis CPR5 gene and revealed five new resistance alleles at this locus. It also confirmed the close association between resistance and an amino-acid substitution in the leucine-rich repeat of the NLR candidate for RYMV3. We also provide an extensive overview of the genetic diversity of resistance to RYMV in the O. glaberrima species, while underlining the contrasted pattern of diversity between O. glaberrima and O. sativa for this trait. The different resistance genes and alleles will be instrumental in breeding varieties with sustainable field resistance to RYMV.
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