Abstract
Karyomorphological investigation have been carried out in ten different accessions of Carthamus tinctorius belonging to the tribe Cynareae (thistle), sub-family Tubifloreae of family Compositae. For concrete studies we explored the details of 3D karyotype using length and volume of the chromosomes and the chromosome complements, in addition to several other related parameters. The observations show variability pertaining to length and volume as well as morphology of chromosomes indicating the structural chromosome polymorphism. All the accessions possessed 2n=24 and symmetrical or slightly asymmetrical karyotype. The accessions belonging to the same species were showing intra-specific and inter-specific chromosome polymorphism.
