Karyotype analysis for date palm (Phoenix dactylifera L) compared with tissue culture derived plants

Abstract: The cytological studies on the micropropagated date palm (phoenix dactylifera var. Karama) revealed that no morphological changes occurred during microproopagation and there were 36 chromosomes arranged in 18 bivalents of chromosomes in c-meta phase profile, seventeen bivalents are autosomal chromosomes and XY bivalent in male or XX in female. Chromosome No.2, 3, 4, 5 and 6 were meta centric, chromosomes No. 1,7,8,9 and 10 were submetacentric and chromosomes from No.11 to No17 were subtelocentric. While X chromosome was submetacentric and Y chromosome was subtelocentric. There were no significant differences in the chromosome length, area and centromer positions between the micropropagated plantlets and the mother plants. [Mohamed M. AbdAlla¹ and Aesha M. Abd El-Kawy. Karyotype analysis for date palm (Phoenix dactylifera L) compared with tissue culture derived plants