Absence of Dominance of the Cu Gene in Influencing o-Hydroxycinnamic Acid Content in Melilotus alba

Authors

Francis A. Haskins, University of Nebraska-LincolnFollow
H. J. Gorz, University of Nebraska-Lincoln

Document Type

Article

Date of this Version

2-1969

Comments

Published in CROP SCIENCE, VOL. 9. January-February 1969. Copyright 1969. Used by permission.

Abstract

The average content of o-hydroxycinnamic acid in sweetclover plants of the Cucu genotype was 36% of the level found in CuCu plants. Thus, the level of o-hydroxycinnamic acid in the F₂ was more like the content of the cucu parent than that of the Cucu parent, indicating that cu was partially dominant over Cu. The calculated value for the degree of dominance of cu over Cu was +0.299. The partial dominance of the cu gene provides an explanation for the difficulty experienced in classifying plants in segregating populations.