Karyotypes analysis of four varieties (lines) of Vicia

The chromosome numbers and karyotypes of four varieties (lines) of Vicia were studied by the root tip cells. The results indicated that the chromosome numbers of all four varieties (lines) were the same, 2n=2x=12. The karyotype formulas of V.sativa Lanjian No. 3 and V.angustifolia 333/A were 2n=2x=8m+2sm+2st and 2n=2x=2m+8sm (2 SAT)+2st, respectively, while V. sativa 2556 and V.sativa 2560 were the same with 2n=2x=10m+2sm . The karyotype of Lanjian No.3 and 2556 were 2B types, while 2560 with 1B type and 333/A with 3B type. These results demonstrated that some genetic differentiations were existed among different varieties (lines) of V.sativa.