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Published in Crop Sci 6:444-446 (1966)
© 1966 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Location of Genes Conditioning Resistance in Corn to Leaf Feeding of the European Corn Borer1

Gene E. Scott, F. F. Dicke and G. R. Pesho2

Chromosomal interchanges were used to determine which chromosome arms of resistant corn inbreds, C.I.31A and B49, carry genes for resistance to European corn borer leaf feeding. All corn plants were infested manually with corn borer egg masses in field studies conducted in 1961 through 1964.

Resistant inbred C.I.31A was found to possess a gene or genes contributing to resistance on the short arm of chromosomes 1, 2, and 4, and on the long arm of chromosomes 4 and 6. Resistant inbred B49 appears to have genes for resistance on these same chromosome arms (possibly allelic to those of C.I.31A) plus an additional gene for resistance on the long arm of chromosome 8.

1 Contribution from the Iowa Agricultural and Home Economics Experiment Station, Ames, Iowa, and the Crops and Entomology Research Division, ARS, USDA, cooperating. Journal Paper No. J-5335 of the Iowa Agr. and Home Econ. Exp. Sta. Project No. 1193.

2 Research Agronomist, Crops Research Division; former Entomologist (presently with Pioneer Hi-Bred Corn Company, Johnston, Iowa); and Entomologist (present address, Metabolism and Radiation Research Laboratory, State University Station, Fargo, N.D.), Entomology Research Division, ARS, USDA, respectively.

Received for publication April 1, 1966.




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