Genetic study of the resistance of faba bean (Vicia faba) against the fungus Ascochyta fabae through a genome‐wide association analysis

• DOI: 10.1111/pbr.12918
• Publication Date: 2021-05-04T06:01:22Z
• Authors: Rabia Faridi; Birger Koopman; Antje Schierholt; Mohamed B. Ali; Stefanie Apel; Wolfgang Link
• Keywords: Ascochyta; Genome-wide Association Study

Abstract Ascochyta fabae is a fungal pathogen responsible for marked yield losses in spring and winter faba beans worldwide. The aim of this genome‐wide association study (GWAS) using 188 diverse bean inbred lines was to exploit earlier blight resistance studies identify new loci. Phenotyping after artificial inoculation under controlled conditions revealed significant variation all eight scored disease traits. This GWAS based on 1829 AFLP marker 229 SNP marker, including 17 so‐called ‘guide’ markers. latter were identified by map fragment alignments between the consensus smap Webb et al., (2016, Plant Biotechnology Journal, 14, 177–185) three published studies. A total 12 markers found significantly associated with six traits, explaining 5.6% 21.7% phenotypic variance. One chromosome III co‐localizes known QTL Af1 III. Probably nine trait‐associated loci which will improve breeding support broader inclusion crop into rotations.