Variations in Nucleolus Number in Saccharum spontaneum L

Abstract

Wide variations in the number of nucleoli per nucleus was observed in a certain clone (2n=54) of S. spontaneum L. from Bhagalpur. Out of 563 PMCs analysed, 57% contained only one nucleolus, and the remaining had it ranging from two to seven. The number of cells with odd number of nucleoli were in abundance (37.66%). Some ratios were found between the volumes of nucleoli of different sizes, though the total nucleolar volume per nucleus never remained uniform.