MULTI-TRAIT MODELS FOR GENOMIC REGIONS ASSOCIATED WITH MAL DE RÍO CUARTO AND BACTERIAL DISEASE IN MAIZE

Maize (Zea Mays L.) production has been greatly benefited from the improvement of inbred lines in regard to resistance diseases. However, absence resistant genotypes bacteriosis is remarkable. The aim study was identify genomic regions for Mal de Río Cuarto (MRC) and bacterial disease (BD) a diverse maize germplasm evaluated Argentinian region where MRC virus endemic. A population assessed both diseases during 2019-2020 crop season. Incidence severity BD were estimated each line genome wide association (GWAS) conducted with 78,376 SNP markers. multi-trait mixed linear model used simultaneous evaluation scored lines. showed high genetic variability resistance. No significant correlation observed between response Promising identified will be confirmed further trials. Key words: disease; study; SNP;