The Cytological study some of almond species subgenus

To study the relationship between four species of almond sub genus. The kariosystematic evolution in Amygdalus communis L.,A. Corduchorum Bornm, A. orientalis Duh, and A. eleaegnifolia Spach were done by the karyological methods. The root meristem cells was used for these studies. In each specimen, ten suitable metaphase plate were selected and photographed. The standard chromosome squash was prepared for the species and the population separately and the parameters of the chromosomes including the complete length of the chromosomes, the length of the long arm, the length of the short arm, the relative length of the arms (AR)and the relative length of the chromosomes etc were calculated. There was significant difference between all of the species that can be employed to distinguish the species. All of the studied species were diploid (2n=16). Avarage size of chromosomes in species of this genus was 2.23± 0.04 micrometer. Also according to the measured cytological characters, A.communis L. had the most similarity with the species of A. orientalis Duh and the species of A. Corduchorum Bornm and A. eleaegnifolia Spach had the most similarity with each other. In finally, studied species were classified two groups cytologically.