Campus Units
Agronomy, Food Science and Human Nutrition, Seed Science Center
Document Type
Article
Publication Version
Published Version
Publication Date
2015
Journal or Book Title
Crop Science
Volume
55
Issue
5
First Page
2244
Last Page
2251
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.
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
Recommended Citation
Beavers, Alyssa W.; Goggi, A. Susana; Reddy, Manju B.; Lauter, Adrienne Moran; and Scott, M. Paul, "Recurrent Selection to Alter Grain Phytic Acid Concentration and Iron Bioavailability" (2015). Agronomy Publications. 141.
https://lib.dr.iastate.edu/agron_pubs/141
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Breeding and Genetics Commons
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.