ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2011
Glycine max non-nodulation locus rj1: a recombinogenic region encompassing a SNP in a lysine motif receptor-like kinase (GmNFR1α).
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 12 citations in OpenAlex.
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- Identification of Novel Candidate Genes Associated With the Symbiotic Compatibility of Soybean With Rhizobia Under Natural Conditions.Plant direct · 2025Article
- A new type III effector from Bradyrhizobium sp. DOA9 encoding a putative SUMO-protease blocks nodulation in Arachis hypogaea L.Scientific reports · 2024Article
- The application of CRISPR/Cas9 in hairy roots to explore the functions of AhNFR1 and AhNFR5 genes during peanut nodulation.BMC plant biology · 2020Article
- The Significance of Flavonoids in the Process of Biological Nitrogen Fixation.International journal of molecular sciences · 2020Review
- Impacts of genomic research on soybean improvement in East Asia.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Review
- Hijacking of leguminous nodulation signaling by the rhizobial type III secretion system.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- Agrobacterium rhizogenes transformed soybean roots differ in their nodulation and nitrogen fixation response to genistein and salt stress.World journal of microbiology & biotechnology · 2013Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
The rj1 mutation of soybean is a simple recessive allele in a single line that arose as a spontaneous mutation in a population; it exhibits non-nodulation with virtually all Bradyrhizobium and Sinorhizobium strains. Here, we described fine genetic and physical mapping of the rj1 locus on soybean chromosome 2. The initial mapping of the rj1 locus using public markers indicated that A343.p2, a sequence-based marker that contains sequence similar to a part of the LjNFR1 gene regulating nodule formation as a member of lysin motif-type receptor-like kinase (LYK) family, maps very close to or cosegregates with the rj1 locus. The sequence of A343.p2 is 100% identical to parts of two BAC clone sequences (GM_WBb0002O19 and GM_WBb098N11) that contain three members of the LYK family. We analyzed the sequence contig (262 kbp) of the two BAC clones by resequencing and subsequent fine genetic and physical mapping. The results indicated that rj1 is located in a gene-rich region with a recombination rate of 120 kbp/cM: several fold higher than the genome average. Among the LYK genes, NFR1α is most likely the gene encoded at the Rj1 locus. The non-nodulating rj1 allele was created by a single base-pair deletion that results in a premature stop codon. Taken together, the fine genetic and physical mapping of the Rj1-residing chromosomal region, combined with the unexpected observation of a putative recombination hotspot, allowed us to demonstrate that the Rj1 locus most likely encodes the NFR1α gene.
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