High-density linkage mapping and genetic dissection of resistance to broomrape ( Orobanche crenata Forsk.) in pea ( Pisum sativum L.).

Autor: Delvento C; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Arcieri F; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Marcotrigiano AR; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Guerriero M; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Fanelli V; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Dellino M; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Curci PL; Institute of Biosciences and Bioresources, National Research Council (CNR), Bari, Italy., Bouwmeester H; Plant Hormone Biology Group, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands., Lotti C; Department of Agricultural, Food and Environmental Sciences, University of Foggia, Foggia, Italy., Ricciardi L; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy., Pavan S; Department of Soil, Plant and Food Sciences, Section of Plant Genetics and Breeding, University of Bari Aldo Moro, Bari, Italy.
Jazyk: angličtina
Zdroj: Frontiers in plant science [Front Plant Sci] 2023 Jul 10; Vol. 14, pp. 1216297. Date of Electronic Publication: 2023 Jul 10 (Print Publication: 2023).
DOI: 10.3389/fpls.2023.1216297
Abstrakt: Pea ( Pisum sativum L.) is a widely cultivated legume of major importance for global food security and agricultural sustainability. Crenate broomrape ( Orobanche crenata Forsk.) (Oc) is a parasitic weed severely affecting legumes, including pea, in the Mediterranean Basin and the Middle East. Previously, the identification of the pea line "ROR12", displaying resistance to Oc, was reported. Two-year field trials on a segregant population of 148 F 7 recombinant inbred lines (RILs), originating from a cross between "ROR12" and the susceptible cultivar "Sprinter", revealed high heritability (0.84) of the "ROR12" resistance source. Genotyping-by-sequencing (GBS) on the same RIL population allowed the construction of a high-density pea linkage map, which was compared with the pea reference genome and used for quantitative trait locus (QTL) mapping. Three QTLs associated with the response to Oc infection, named PsOcr-1 , PsOcr-2 , and PsOcr-3 , were identified, with PsOcr-1 explaining 69.3% of the genotypic variance. Evaluation of the effects of different genotypic combinations indicated additivity between PsOcr-1 and PsOcr-2 , and between PsOcr-1 and PsOcr-3 , and epistasis between PsOcr-2 and PsOcr-3 . Finally, three Kompetitive Allele Specific PCR (KASP) marker assays were designed on the single-nucleotide polymorphisms (SNPs) associated with the QTL significance peaks. Besides contributing to the development of pea genomic resources, this work lays the foundation for the obtainment of pea cultivars resistant to Oc and the identification of genes involved in resistance to parasitic Orobanchaceae.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2023 Delvento, Arcieri, Marcotrigiano, Guerriero, Fanelli, Dellino, Curci, Bouwmeester, Lotti, Ricciardi and Pavan.)
Databáze: MEDLINE
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