H. Ebrahirnzadeh - Department of Biology, Faculty of sciences, University of Tehran
Azra Saboora - Department of Biology, Faculty of sciences, University of Tehran
Mohammad Reza Noori-Daloii - Department of Biochemistry, Faculty of Medicine, Medical Sciences University of Tehran
SeyyedMahmoud Ghaffari - Institute of Biochemistry and Biophysics, University of Tehran

Four species of Iranian Crocus were chromosomally investigated and their karyotypes were determined: C. sativus (۲n=۲۴), C. cancellatus subsp. damascenus (۲n=۸A), C. gilanicus (۲n=۲۴) and C. speciosus subsp. speciosus (۲n=۱۲). On the meiotic studies of pollen mother cells in Crocus sativus unbalanced distribution of chromosomes in two poles of cells and chromosomic lagging were frequently observed. Karyological studies on the meristematic cells of neoformed root tips in explant of saffron corm showd cells with ۲n=۱۶ chromosomes.

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