Nuclei from different tissues such as stem, mesocotyl, nodal root and root tip of diploid and
tetraploid maize were isolated, stained with propidium iodide and passed through an EPICS-
751 flow-cytometer cell sorter. Variations in flow histograms were observed in different
tissues. Stem tissues of both the diploid and tetraploid had two peaks representing G1 and
G2 somatic nuclei. The remaining tissues in both the diploids and tetraploids exhibited three
peaks. The first peak observed in these tissues represents G1 somatic nuclei of the lowest …