– Mutants of B1-type cyclins are hypersensitive to cisplatin.Figure 1A. cycb1;1, cycb1;2, cycb1;3, cycb1;4, cycb1;1/1;2, cycb1;1/1;3, cycb1;1/1;4, cycb1;2/1;4, cycb1;3/1;4 and the wildtype, from left to right on control plates without genotoxic agent 10 days after germination.B. The wildtype, single and double mutants of cycb1 were grown on control plates without genotoxic agent. Root lengths were measured 10 days after germination.C. The wildtype, cycb1;1, cycb1;2, cycb1;3, cycb1;4, cycb1;1/1;2, cycb1;1/1;3, cycb1;1/1;4, cycb1;2/1;4, cycb1;3/1;4 from left to right on plates containing 1 mM hydroxy urea (HU) 10 days after germination. The rightmost plant is the wee1 mutant that shows high sensitivity to HU.D. The wildtype, single and double mutants of cycb1 were grown on plates supplemented with 1 mM HU. Root lengths were measured 10 days after germination.E. The wildtype, cycb1;1, cycb1;2, cycb1;3, cycb1;4, cycb1;1/1;2, cycb1;1/1;3, cycb1;1/1;4, cycb1;2/1;4, cycb1;3/1;4 from left to right on plates containing 0,6 μg/mL bleomycin (BLM) 10 days after germination. The rightmost plant is the ku70 mutant that shows high sensitivity to BLM.F. The wildtype, single and double mutants of cycb1 were grown on plates supplemented with 0,6 μg/mL BLM. Root lengths were measured 10 days after germination. G. The wildtype, cycb1;1, cycb1;2, cycb1;3, cycb1;4, cycb1;1/1;2, cycb1;1/1;3, cycb1;1/1;4, cycb1;2/1;4, cycb1;3/1;4 from left to right on plates containing 15 μM cisplatin 6 days after germination, i.e. 3 days after transfer from control plates.H. cycb1 mutants were germinated on control plates and were transferred to new control plates three days after germination. Root lengths mutants were measured three days after transfer and the net root growth of three days is shown in the graphs.I. cycb1 single mutants germinated on control plates and were transferred to plates supplemented with 15 μM cisplatin three days after germination. Root lengths of cycb1 mutants were measured three days after transfer and the net root growth of three days is shown in the graphs.J. cycb1 single mutants germinated on control plates and were transferred to plates supplemented with 30 μM cisplatin three days after germination. Root lengths of cycb1 mutants were measured three days after transfer and the net root growth of three days is shown in the graphs. K. The wildtype, cycb1;1, cycb1;2, cycb1;3, cycb1;4, cycb1;1/1;2, cycb1;1/1;3, cycb1;1/1;4, cycb1;2/1;4, cycb1;3/1;4 from left to right on plates containing 30 μM cisplatin 6 days after germination, i.e. 3 days after transfer from control plates.L. cycb1 double mutants germinated on control plates and were transferred to new control plates three days after germination. Root lengths were measured three days after transfer and the net root growth of three days is shown in the graphs.M. cycb1 mutants germinated on control plates and were transferred to plates supplemented with 15 μM cisplatin three days after germination. Root lengths of cycb1 mutants were measured three days after transfer and the net root growth of three days is shown in the graphs.N. cycb1 mutants germinated on control plates and were transferred to plates supplemented with 30 μM cisplatin three days after germination. Root lengths of cycb1 mutants were measured three days after transfer and the net root growth of three days is shown in the graphs.