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Breeding for nutritional characteristics in cereals.

R D Graham1, G Gregorio

  • 1Department of Plant Science, University of Adelaide, Glen Osmond, 5064, South Australia, Australia.

Novartis Foundation Symposium
|June 5, 2001
PubMed
Summary

Cereal grains can be genetically enhanced to significantly boost essential nutrients like iron and zinc, addressing global micronutrient deficiencies. This biofortification offers a scalable solution to improve public health, particularly for women and children.

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Area of Science:

  • Agricultural Science
  • Human Nutrition
  • Genetics

Background:

  • Global micronutrient deficiencies affect over half the population, with significant impacts on women and children.
  • Cereal grains are staple foods, making them ideal vehicles for improving population-wide nutrient intake.
  • Key deficiencies include iron, zinc, calcium, iodine, and vitamin A-related carotenoids.

Purpose of the Study:

  • To investigate the potential of genetic variation in major cereals for enhancing nutrient content.
  • To assess the feasibility of using cereals to address widespread micronutrient deficiencies.
  • To highlight the role of biofortification in improving public health outcomes.

Main Methods:

  • Exploration of genetic variation within major cereal species for nutrient traits.

Related Experiment Videos

  • Analysis of nutrient content in various staple cereals.
  • Evaluation of potential increases in mineral and carotenoid content.

    • Main Results:

    • Significant genetic variation exists for nutrient content in cereal grains.
    • Cereal intake can be effectively doubled for iron, calcium, and zinc.
    • Essential carotenoid content/intake can be increased by much greater factors.
    • Bioavailability and health benefit studies are ongoing.

    Conclusions:

    • Genetic enhancement of cereals offers a promising strategy to combat global micronutrient deficiencies.
    • Increased nutrient content in staple grains can substantially improve public health.
    • Further research on bioavailability is crucial for implementing these biofortified cereals in breeding programs.