Studying of karyological variability of Allium hymenorhizum Ledeb. in the conditions of South Ural and the Bashkir Cis-Urals

Studying of karyological variability of a rare relict species of Allium hymenorhizum Ledeb is carried out on the example of populations from the South Ural and the Bashkir Cis-Urals. It was found that the number of chromosomes in the somatic tissue of the studied species is 2n=16, there are chromosomes of medium size, metacentric and submetacentric types, on three pairs there are secondary constrictions. The variability of karyological parameters is characterized by a very low, low and average coefficient of variation. Significant differences between the populations are observed in the relative length of 1 and 8 pairs, in the centromeric index of 5 pairs, in the absolute length of chromosomes the differences are insignificant.