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Article
Recurrent Selection to Alter Grain Phytic Acid Concentration and Iron Bioavailability
Crop Science
  • Alyssa W. Beavers, Michigan State University
  • A. Susana Goggi, Iowa State University
  • Manju B. Reddy, Iowa State University
  • Adrienne Moran Lauter, United States Department of Agriculture
  • M. Paul Scott, United States Department of Agriculture
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2015
DOI
10.2135/cropsci2014.12.0807
Abstract
Iron is an important micronutrient and Fe deficiency is a global health concern. Phytic acid inhibits Fe absorption and cannot be digested by monogastric livestock or humans. High phytate concentration in staple crops may be one of the contributing factors for the high incidence of anemia in developing countries because of its inhibiting effect on Fe absorption. In seeds, it serves as the main storage compound for P. Low phytic acid mutants (lpa) in maize (Zea mays L.) have improved Fe bioavailability, but they have poor germination. Our objective was to develop both low phytic acid (LPA) and high phytic acid (HPA) maize populations using recurrent selection and to compare seed quality and Fe bioavailability among the HPA and LPA populations and lpa mutant lines. Three cycles of selection were performed in two broad-based synthetic populations, BS11 and BS31. The resulting HPA and LPA populations were significantly different in phytic acid concentration in the BS11-derived populations (P < 0.05) but not in the BSS31-derived populations (P > 0.05). The BS11LPA maize population had improved seed germination (13–16%; P < 0.05), and Fe bioavailability was not statistically different (P > 0.05) than the lpa mutant inbred lines. We conclude that recurrent selection for phytic acid levels may be a viable approach for improving Fe bioavailability of grain while maintaining seed quality.
Comments

This article is published as Beavers, Alyssa W., A. Susana Goggi, Manju B. Reddy, Adrienne Moran Lauter, and M. Paul Scott. "Recurrent Selection to Alter Grain Phytic Acid Concentration and Iron Bioavailability." Crop Science 55, no. 5 (2015): 2244-2251. doi: 10.2135/cropsci2014.12.0807.

Rights
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
Language
en
File Format
application/pdf
Citation Information
Alyssa W. Beavers, A. Susana Goggi, Manju B. Reddy, Adrienne Moran Lauter, et al.. "Recurrent Selection to Alter Grain Phytic Acid Concentration and Iron Bioavailability" Crop Science Vol. 55 Iss. 5 (2015) p. 2244 - 2251
Available at: http://works.bepress.com/paul-scott/39/