AUTOPOLYPLOIDY IN SUGAR BEET GENOME: DIFFERENTIAL EFFECT OF CHEMICALS

Ghonema, M. A.; Ibrahim, Hayam E. A.

doi:10.21608/jacb.2010.89417

AUTOPOLYPLOIDY IN SUGAR BEET GENOME: DIFFERENTIAL EFFECT OF CHEMICALS

Document Type : Original Article

Authors

M. A. Ghonema ¹
Hayam E. A. Ibrahim ²

¹ Department of Genetics and Breeding, Sugar Crops Research Institute, Agricultural Research Center.

² Department of Agricultural botany, Faculty of Agriculture, University of Alexandria- (Saba-Bacha).

10.21608/jacb.2010.89417

Abstract

Three spindle fiber inhibitors (8-hydroxyquinoline, para-dichlorobenzene and colchicine) at four concentrations were used in sugar beet (Beta vulgaris L.) plants to induce polyploidy. The aberrations were recorded and recognized in root tip and young leave cells. The results obtained showed that different types of aberrations were observed. These types are fragmentation, ring shape, stickiness, gaps, bridge, cell in lyses and end to end association. Different ratios were recorded for the three tested compounds. However, colchicine was proven to induce the minimum ratio of aberrations and to be the effective compound in causing polyploidy compared with other compounds.