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The Journal of Heredity 2002:93(1)
© 2002 The American Genetic Association 93:50-52

Brief Communication

Inheritance of Disease Lesion Mimic Leaf Trait in Groundnut

A. M. Badigannavar, D. M. Kale, S. Eapen, and G. S. S. Murty

From the Groundnut and EGFF Section, Gamma Field, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.

Address correspondence to G. S. S. Murty at the address above or e-mail: egffs{at}magnum.barc.ernet.in.

In groundnut, two identical mutants with disease lesion mimic leaf trait were isolated independently from two different parents through induced mutagenesis and in vitro culture technique. The leaf chlorophyll content in both the mutants was found to be drastically reduced. The segregation pattern in the F2 and F3 generations for normal and mutant traits fitted a 13:3 ratio, indicating that the disease lesion mimic trait in the mutants was due to suppressive gene action. Both mutants were allelic for the disease mimic trait.


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