Variation of chromosome number in plants and regenerated plantlets of Bupleurum falcatum L

Variation of chromosome number in plants and regenerated plantlets of B. falcatum was studied using three cultivars, originated from Kumamoto and fukuoka, Japan and Jeongseon, Koria. Within and among cultivars, there was a variability in chromosome number. The basic chromosome number from plats was shown as 2n=26, 2n=26 and 2n=20 for the cultivar from Kumamoto, Jeongseon, and fukuoka, respectively. Various kinds of aneuploidy were observed from the plants as 2n=18, 22, 23, 24, 25, 48. Chromosome number of regenerated plantlets by anther culture was 2n=13, which was originated from a 2n=26 plant