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Genetic analysis of resistance to bean leaf crumple virus identifies a candidate LRR-RLK gene

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Title Genetic analysis of resistance to bean leaf crumple virus identifies a candidate LRR-RLK gene
 
Creator Ariza-Suarez, Daniel
Keller, Beat
Spescha, Anna
Aparicio, Johan Steven
Mayor, Victor
Portilla Benavides, Ana Elisabeth
Buendia, Hector Fabio
Bueno, Juan Miguel
Studer, Bruno
Raatz, Bodo
 
Subject disease resistance
marker-assisted selection
genetic control
resistencia a la enfermedad
selección asistida por marcadores
control genético
cell biology
genetics
 
Description Bean leaf crumple virus (BLCrV) is a novel begomovirus (family Geminiviridae, genus Begomovirus) infecting common bean (Phaseolus vulgaris L.), threatening bean production in Latin America. Genetic resistance is required to ensure yield stability and reduce the use of insecticides, yet the available resistance sources are limited. In this study, three common bean populations containing a total of 558 genotypes were evaluated in different yield and BLCrV resistance trials under natural infection in the field. A genome‐wide association study identified the locus BLC7.1 on chromosome Pv07 at 3.31 Mbp, explaining 8 to 16% of the phenotypic variation for BLCrV resistance. In comparison, whole‐genome regression models explained 51 to 78% of the variation and identified the same region on Pv07 to confer resistance. The most significantly associated markers were located within the gene model Phvul.007G040400, which encodes a leucine‐rich repeat receptor‐like kinase subfamily III member and is likely to be involved in the innate immune response against the virus. The allelic diversity within this gene revealed five different haplotype groups, one of which was significantly associated with BLCrV resistance. As the same genome region was previously reported to be associated with resistance against other geminiviruses affecting common bean, our study highlights the role of previous breeding efforts for virus resistance in the accumulation of positive alleles against newly emerging viruses. In addition, we provide novel diagnostic single‐nucleotide polymorphism markers for marker‐assisted selection to exploit BLC7.1 for breeding against geminivirus diseases in one of the most important food crops worldwide.
 
Date 2023-04
2023-01-17T14:30:51Z
2023-01-17T14:30:51Z
 
Type Journal Article
 
Identifier Ariza-Suarez, D.; Keller, B.; Spescha, A.; Aparicio, J.S.; Mayor, V.; Portilla-Benavides, A.E.; Buendia, H.F.; Bueno, J.M.; Studer, B.; Raatz, B. (2022) Genetic analysis of resistance to bean leaf crumple virus identifies a candidate LRR-RLK gene. Plant Journal ISSN: 0960-7412
0960-7412
https://hdl.handle.net/10568/127298
https://doi.org/10.1111/tpj.15810
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Wiley
 
Source Plant Journal