Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 11:856-859 (1971)
© 1971 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Inheritance of Oleic and Linoleic Acids in Zea Mays L.1

I. A. de la Roche, D. E. Alexander and E. J. Weber2

The difference in the levels of oleate and linoleate in the triglycerides of the related R84 and Illinois High Oil (IHO) maize (Zea mays L.) strains is determined solely by the In locus. A single locus controls the 20% difference in oleate and linoleate between C103 and R84. At least two loci control the levels of oleate and linoleate in C103 and IHO. Strong maternal effects are exhibited in the reciprocal F1's of C103 and R84. In contrast, no maternal effects were detectable in IHO x R84 and C103 x IHO.

Key Words: Triglyceride • Fatty acids • Maize • Maternal effect • Epitasis

1 Cooperative research by the Illinois Agricultural Experiment Station and the Plant Science Research Division, Agricultural Research Service, US Department of Agriculture, Urbana, Ill. 61801. From the thesis submitted by the senior author in partial fulfillment of the requirements for the Ph.D. degree.

2 Graduate Research Assistant (present address: Ottawa Research Station, Canada Department of Agriculture, Ottawa, Ontario, Canada); Professor of Plant Breeding and Genetics, University of Illinois, Urbana, Ill.; and Research Chemist, Plant Science Research Division, Agricultural Research Service, US Department of Agriculture, Urbana, Ill., respectively.

Received for publication April 9, 1971.


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