| Summary: | A unifoliate mutant was found in an R. population of common bean (Phaseolus vulgaris L.) irradiated with an acute dose of Bkr from a Cesia-137 source. Normally, the genus Phaseolus has trifoliate leaves. In this mutant, the leaves are large and simple, giving the impression that they have not divided into trifoliates during development. It produces rudimentary flowers, making it sterile. Genetic studies show that the trait is recessive and dominated by a single gene. However, a study of the total number of normal and mutant seedlings showed a deficiency in the number of mutants. This may be due to unequal transmission of the mutant gene caused by gametic selection.
|
|---|