A recessive gene for white sepal colour in sweetclover, Melilotus alba L.

Author:

Goplen B. P.

Abstract

A genetic analysis involving P, F1, F2 and F3 in sweetclover (Melilotus alba L.) revealed that the white sepal trait was controlled by a single recessive gene, designated ws. This trait is characterized by chlorophyll-deficient white sepals and several associated pleiotropic effects including: lighter green colour of stems and foliage and a general greenish-red colour of the entire plant, lax and wilted appearance of the white sepal racemes, reduced opening of the mature flower, and a much reduced fertility as measured by percent pod set. Because of these regressive effects associated with the white sepal trait, it has limited use as a plant marker.Key words: Melilotus alba, white sepal, chimera, pleiotropy

Publisher

Canadian Science Publishing

Subject

Horticulture,Plant Science,Agronomy and Crop Science

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