Assessing Genotype-By-Environment Interactions in Aspergillus Ear Rot and Pre-Harvest Aflatoxin Accumulation in Maize Inbred Lines

This study investigated inbred for resistance

Sheila Okoth

Scholarcy highlights

  • Aflatoxin is a toxic and carcinogenic compound produced mostly by the fungus Aspergillus flavus.Aflatoxins can be found at detrimentally high concentrations in maize grain and other cereals in the tropics due to the prevailing conducive environment for fungal growth and toxin production.Human exposure in Africa is more serious than in other continents because the crops that are highly susceptible to infection by the fungus are the primary staple
  • The significant correlations observed between A. flavus target DNA and total aflatoxin content of maize suggests that this trait is reliable for quantifying susceptibility of genotypes to fungal infection and possible eventual risk to aflatoxin accumulation compared with Aspergillus ear rot severity
  • Multi-environment analysis is useful in the evaluation of crop cultivars, as it enables selection of superior genotypes and eliminates unwanted test environments
  • Fungal DNA content in maize grain emerged as the stable trait to predict aflatoxin accumulation in maize
  • We identified inbred lines CML495, CKL05019, LaPosta, and MIRTC5 as the most adaptable to the test environments and resistant genotypes for the three traits tested
  • These germplasm can be included in maize breeding programs for developing resistant lines to AER and aflatoxin accumulation

Need more features? Save interactive summary cards to your Scholarcy Library.