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|a 10.1094/PDIS-02-23-0313-RE
|2 doi
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Leitão, Susana T
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Oligogenic Control of Quantitative Resistance Against Powdery Mildew Revealed in Portuguese Common Bean Germplasm
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| 264 |
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 03.11.2023
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|a Date Revised 03.11.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Common bean (Phaseolus vulgaris L.) is one of the most important food legumes worldwide, and its production is severely affected by fungal diseases such as powdery mildew. Portugal has a diverse germplasm, with accessions of Andean, Mesoamerican, and admixed origin, making it a valuable resource for common bean genetic studies. In this work, we evaluated the response of a Portuguese collection of 146 common bean accessions to Erysiphe diffusa infection, observing a wide range of disease severity and different levels of compatible and incompatible reactions, revealing the presence of different resistance mechanisms. We identified 11 incompletely hypersensitive resistant and 80 partially resistant accessions. We performed a genome-wide association study to clarify its genetic control, resulting in the identification of eight disease severity-associated single-nucleotide polymorphisms, spread across chromosomes Pv03, Pv09, and Pv10. Two of the associations were unique to partial resistance and one to incomplete hypersensitive resistance. The proportion of variance explained by each association varied between 15 and 86%. The absence of a major locus, together with the relatively small number of loci controlling disease severity, suggested an oligogenic inheritance of both types of resistance. Seven candidate genes were proposed, including a disease resistance protein (toll interleukin 1 receptor-nucleotide binding site-leucine-rich repeat class), an NF-Y transcription factor complex component, and an ABC-2 type transporter family protein. This work contributes with new resistance sources and genomic targets valuable to develop selection molecular tools and support powdery mildew resistance precision breeding in common bean
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|a Journal Article
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|a Phaseolus vulgaris
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| 650 |
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4 |
|a association mapping
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| 650 |
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|a hypersensitive resistance
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| 650 |
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4 |
|a partial resistance
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| 650 |
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4 |
|a powdery mildew
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| 700 |
1 |
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|a Mendes, Francisco A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rubiales, Diego
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vaz Patto, Maria Carlota
|e verfasserin
|4 aut
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| 773 |
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|t Plant disease
|d 1997
|g 107(2023), 10 vom: 27. Okt., Seite 3113-3122
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|g year:2023
|g number:10
|g day:27
|g month:10
|g pages:3113-3122
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|u http://dx.doi.org/10.1094/PDIS-02-23-0313-RE
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