PJB-2004-33
KARYOTYPING, C- AND NOR BANDING OF ALLIUM SATIVUM L. (LILIACEAE) CULTIVATED IN TURKEY
DENİZ YÜZBAŞIOĞLU AND FATMA ÜNAL
Abstract
The cytological features including chromosome number, karyotypic characteristics, C-banding and silver NOR-banding were investigated in a local cultivar of Allium sativum L., from Turkey. Actual lengths, relative lengths, L/S arm ratios of mitotic chromosomes were calculated from best six metaphase plates. Only Chromosome 5 was submedian, all the others were median. C-banding was observed on 4 chromosomes. Bands were centromeric on Chromosome 1 and 4, located to the neighbourhood of the secondary constrictions on Chromosome 5 and were interstitial close to centromere on Chromosome 8. Darkly stained silver nitrate bandings were present in the NORs of Chromosome 5 and 7, on Chromosome 1 and 8 in some cells.
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