PMID- 37098653 OWN - NLM STAT- MEDLINE DCOM- 20230914 LR - 20230930 IS - 2590-3462 (Electronic) IS - 2590-3462 (Linking) VI - 4 IP - 5 DP - 2023 Sep 11 TI - An atypical NLR gene confers bacterial wilt susceptibility in Arabidopsis. PG - 100607 LID - S2590-3462(23)00118-9 [pii] LID - 10.1016/j.xplc.2023.100607 [doi] LID - 100607 AB - Quantitative disease resistance (QDR) remains the most prevalent form of plant resistance in crop fields and wild habitats. Genome-wide association studies (GWAS) have proved to be successful in deciphering the quantitative genetic basis of complex traits such as QDR. To unravel the genetics of QDR to the devastating worldwide bacterial pathogen Ralstonia solanacearum, we performed a GWAS by challenging a highly polymorphic local mapping population of Arabidopsis thaliana with four R. solanacearum type III effector (T3E) mutants, identified as key pathogenicity determinants after a first screen on an A. thaliana core collection of 25 accessions. Although most quantitative trait loci (QTLs) were highly specific to the identity of the T3E mutant (ripAC, ripAG, ripAQ, and ripU), we finely mapped a common QTL located on a cluster of nucleotide-binding domain and leucine-rich repeat (NLR) genes that exhibited structural variation. We functionally validated one of these NLRs as a susceptibility factor in response to R. solanacearum, named it Bacterial Wilt Susceptibility 1 (BWS1), and cloned two alleles that conferred contrasting levels of QDR. Further characterization indicated that expression of BWS1 leads to suppression of immunity triggered by different R. solanacearum effectors. In addition, we showed a direct interaction between BWS1 and RipAC T3E, and BWS1 and SUPPRESSOR OF G2 ALLELE OF skp1 (SGT1b), the latter interaction being suppressed by RipAC. Together, our results highlight a putative role for BWS1 as a quantitative susceptibility factor directly targeted by the T3E RipAC, mediating negative regulation of the SGT1-dependent immune response. CI - Copyright (c) 2023 The Author(s). Published by Elsevier Inc. All rights reserved. FAU - Demirjian, Choghag AU - Demirjian C AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Razavi, Narjes AU - Razavi N AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Yu, Gang AU - Yu G AD - Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China. FAU - Mayjonade, Baptiste AU - Mayjonade B AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Zhang, Lu AU - Zhang L AD - Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China. FAU - Lonjon, Fabien AU - Lonjon F AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Chardon, Fabien AU - Chardon F AD - Universite Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000 Versailles, France. FAU - Carrere, Sebastien AU - Carrere S AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Gouzy, Jerome AU - Gouzy J AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Genin, Stephane AU - Genin S AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Macho, Alberto P AU - Macho AP AD - Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China. FAU - Roux, Fabrice AU - Roux F AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Berthome, Richard AU - Berthome R AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. FAU - Vailleau, Fabienne AU - Vailleau F AD - LIPME, Universite de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. Electronic address: fabienne.vailleau@inrae.fr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230425 PL - China TA - Plant Commun JT - Plant communications JID - 101769147 RN - 0 (Bacterial Proteins) RN - EC 2.4.1.- (SGT1 protein, Arabidopsis) RN - EC 2.4.1.- (Glucosyltransferases) RN - 0 (Arabidopsis Proteins) SB - IM MH - *Arabidopsis/genetics/metabolism MH - Bacterial Proteins/genetics MH - Genome-Wide Association Study MH - Disease Resistance/genetics MH - Virulence/genetics MH - Glucosyltransferases MH - *Arabidopsis Proteins/genetics PMC - PMC10504594 OTO - NOTNLM OT - Arabidopsis thaliana OT - GWAS OT - R gene OT - Ralstonia solanacearum OT - susceptibility OT - type III effectors EDAT- 2023/04/26 06:42 MHDA- 2023/09/14 06:42 PMCR- 2023/04/25 CRDT- 2023/04/26 01:36 PHST- 2022/07/29 00:00 [received] PHST- 2023/01/19 00:00 [revised] PHST- 2023/04/20 00:00 [accepted] PHST- 2023/09/14 06:42 [medline] PHST- 2023/04/26 06:42 [pubmed] PHST- 2023/04/26 01:36 [entrez] PHST- 2023/04/25 00:00 [pmc-release] AID - S2590-3462(23)00118-9 [pii] AID - 100607 [pii] AID - 10.1016/j.xplc.2023.100607 [doi] PST - ppublish SO - Plant Commun. 2023 Sep 11;4(5):100607. doi: 10.1016/j.xplc.2023.100607. Epub 2023 Apr 25.