ArticleMolecular ecology2015
Evolution and selection of Rhg1, a copy-number variant nematode-resistance locus.
Article in Molecular ecology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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Who cites it
45 citing papers in PubMed.
- AATRhg1 is a tonoplast protein that alters amino acid, metabolic, and defense responses and nematode resistance.Plant physiology · 2026Article
- Hijacking the Host Clock: A Nematode Effector Antagonizes Soybean Circadian Defense and Translation Control.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Soybean Cyst Nematode-Resistant Protein AATPlant direct · 2025Article
- The AP2/ERF transcription factor GmTINY mediates ethylene regulation of Rhg1-conferred resistance against soybean cyst nematode.Plant communications · 2025Article
- A Systematic Review of the Advances and New Insights into Copy Number Variations in Plant Genomes.Plants (Basel, Switzerland) · 2025Review
- Article
- Genome and GWAS analyses for soybean cyst nematode resistance in USDA world-wide common bean (Frontiers in plant science · 2025Article
- Dynamic transcriptomic responses to soybean cyst nematode infection in soybean genotypes with contrasting resistance profiles.Frontiers in plant science · 2025Article
- Allele-tagged TaqManMolecular biology reports · 2024Article
- Genetic dissection of resistance to Phytophthora sojae using genome-wide association and linkage analysis in soybean [Glycine max (L.) Merr.].TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Impact of Rhg1 copy number variation on a soybean cyst nematode resistance transcriptional network.G3 (Bethesda, Md.) · 2024Article
- Copy number variations at theFrontiers in plant science · 2024Article
- No Pairwise Interactions of GmSNAP18, GmSHMT08 and AtPR1 with SuppressedPlants (Basel, Switzerland) · 2023Article
- Research progress on the functional study of host resistance-related genes against Heterodera glycines.Crop health · 2023Review
- Soybean transporter AAT Rhg1 abundance increases along the nematode migration path and impacts vesiculation and ROS.Plant physiology · 2023Article
- Genetic architecture of fresh-market tomato yield.BMC plant biology · 2023Article
- Cataloging SCN resistance loci in North American public soybean breeding programs.Frontiers in plant science · 2023Article
- Article
- A mutant allele of thePlant direct · 2022Article
- Epistatic interaction between Rhg1-a and Rhg2 in PI 90763 confers resistance to virulent soybean cyst nematode populations.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The soybean cyst nematode (SCN) resistance locus Rhg1 is a tandem repeat of a 31.2 kb unit of the soybean genome. Each 31.2-kb unit contains four genes. One allele of Rhg1, Rhg1-b, is responsible for protecting most US soybean production from SCN. Whole-genome sequencing was performed, and PCR assays were developed to investigate allelic variation in sequence and copy number of the Rhg1 locus across a population of soybean germplasm accessions. Four distinct sequences of the 31.2-kb repeat unit were identified, and some Rhg1 alleles carry up to three different types of repeat unit. The total number of copies of the repeat varies from 1 to 10 per haploid genome. Both copy number and sequence of the repeat correlate with the resistance phenotype, and the Rhg1 locus shows strong signatures of selection. Significant linkage disequilibrium in the genome outside the boundaries of the repeat allowed the Rhg1 genotype to be inferred using high-density single nucleotide polymorphism genotyping of 15 996 accessions. Over 860 germplasm accessions were found likely to possess Rhg1 alleles. The regions surrounding the repeat show indications of non-neutral evolution and high genetic variability in populations from different geographic locations, but without evidence of fixation of the resistant genotype. A compelling explanation of these results is that balancing selection is in operation at Rhg1.
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