Explant is a part of a plant used in tissue culture. For developing the somaclones the explants is grown in nutrient medium under aseptic conditions. This results in the formation of an undifferentiated mass of tissue called callus from which a large number of plantlets are produced by micropropagation.
These plants so produced by tissue culture are called somaclones because they are genetically identical to the original plant from which the explant is taken.
