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Crosses between lentils with red cotyledons and those with yellow gave F2 ratios of three red to one yellow indicating a simple allelomorphic relationship between genes for cotyledon color with red being dominant to yellow. In white light, colors of lentil (Lens culinaris, Medic.) cotyledons did not show through unbroken seed coats, but in ultraviolet radiation red and yellow cotyledons were distinguishable. Fluorescence made possible an easy, efficient, and accurate means of distinguishing F1 seed from self-pollinated seed without damaging the seed coats.
Key Words: Lentil Gene marker Ultraviolet radiation
2 Research Plant Pathologist, Crops Research Division, ARS, USDA, and Professor and Assistant Professor of Agronomy, Washington State University, Pullman, Wash.
Received for publication September 5, 1969.
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