Inheritance of fruit-coat colours in Trichosanthes anguina Linn.
In Trichosanthes anguina Linn. (Cucurbitaceae), reciprocal crosses among three naturally occurring fruit-coat colour varieties (deep green, green and white) and two yellow fruit-coat colour mutants isolated in the M1 generation showed that a multiple allelic series control the fruit-coat colours. In the F2 generation the fruit-coat colours segregated in a monohybrid ratio with deep green dominant over green, yellow and white, green dominant over yellow and white, and yellow dominant over white. Two yellow fruit-coat colour mutants used in this study were isolated from X-ray- and EMS-treated populations of a white fruit-coat colour variety.
Cytogenetics Laboratory, Department of Botany, Bose Institute, 93/1, Acharya Prafulla Chandra Road, 700 009, Calcutta, India.
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Sardar
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Mukherjee