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A genome-wide association analysis study (GWAS) for fumonisin content in maize kernel

AuthorsSamayoa López, Luis Fernando ; Santiago Carabelos, Rogelio ; Malvar Pintos, Rosa Ana ; Cao Caamaño, Ana ; Butrón Gómez, Ana María
Issue Date8-Apr-2018
PublisherAustrian Association of Molecular Life Sciences and Biotechnology
CitationBook of abstracts of the European Fusarium Seminar (EFS 14): PP-54, p. 88 (2018)
AbstractIn current study, GWAS has been performed for the first time for detecting high-resolution QTL for resistance to fumonisin accumulation in maize kernel. A subset of 270 inbred lines from a maize diversity panel (composed of 302 inbred lines) that represents much of the diversity available in public breeding sector around the world was evaluated under inoculation with Fusarium verticillioides. Significant associations between polymorphisms at SNPs in bins 1.07, 1.09, 2.08, 3.02, 3.04, 3.05, 3.06, 3.08, 3.09, 4.02, 4.05, 5.02, 6.07, 7.05, 8.07, 9.03 and fumonisin accumulation (determined by ELISA tests) in maize kernel were detected. At least, four associations should be behind novel QTL because QTL were not found in that bin or in adjacent bins in previous studies (Robertson-Hoyt et al. 2006; Maschietto et al. 2017). These novel QTLs for fumonisin content would be at bins 3.02, 5.02, 7.05, and 8.03. Genes likely involved in ROS production, ROS-scavenging and ROS-detoxification, in signaling and/or regulation of plant hormone-mediated responses and lipid metabolism were proposed as candidate genes behind significant associations.
Description1 página-. Resumen del póster presentado en el Seminario celebrado en Tullm, Austria, entre el 8 y el 11 de abril de 2018.
Publisher version (URL)https://www.efs14.at/pub/EFS14_Abstractbook_V1.7.pdf
Appears in Collections:(MBG) Comunicaciones congresos
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