Table I.

Depolymerization kinetics of spindle halves after onset of spindle disassembly

Genotype Recovery frequency Shrinkage rate n P-value 
 F(rec) (s−1) R(hs) (µm × s−1)   
23°C 
Wild type 0.0050 0.069 ± 0.006 42 NA 
cdh1Δ nonhyperstable 0.0054 0.051 ± 0.007 21 0.085 
cdh1Δ hyperstable 0.0046 0.013 ± 0.004 16 <0.001 
doc1Δ nonhyperstable 0.0064 0.044 ± 0.006 25 0.013 
doc1Δ hyperstable 0.0016 0.004 ± 0.002 16 <0.001 
dbf2Δ nonhyperstable 0.0079 0.029 ± 0.004 19 <0.001 
dbf2Δ hyperstable 0.002 0.012 ± 0.002 16 <0.001 
kip3Δ 0.0102 0.044 ± 0.004 39 0.002 
dcc1Δ 0.0078 0.043 ± 0.004 40 0.003 
ctf8Δ 0.0082 0.041 ± 0.005 39 0.008 
she1Δ 0.0053 0.048 ± 0.004 45 0.008 
mcm21Δ 0.0059 0.060 ± 0.005 42 0.31 
37°C 
Wild type 0.0028 0.090 ± 0.007 40 NA 
ipl1-321 0.0045 0.052 ± 0.004 36 <0.001 
kip3Δ 0.0125 0.061 ± 0.009 19 0.014 
ipl1-321 kip3Δ 0.0076 0.042 ± 0.010 17 <0.001 
Genotype Recovery frequency Shrinkage rate n P-value 
 F(rec) (s−1) R(hs) (µm × s−1)   
23°C 
Wild type 0.0050 0.069 ± 0.006 42 NA 
cdh1Δ nonhyperstable 0.0054 0.051 ± 0.007 21 0.085 
cdh1Δ hyperstable 0.0046 0.013 ± 0.004 16 <0.001 
doc1Δ nonhyperstable 0.0064 0.044 ± 0.006 25 0.013 
doc1Δ hyperstable 0.0016 0.004 ± 0.002 16 <0.001 
dbf2Δ nonhyperstable 0.0079 0.029 ± 0.004 19 <0.001 
dbf2Δ hyperstable 0.002 0.012 ± 0.002 16 <0.001 
kip3Δ 0.0102 0.044 ± 0.004 39 0.002 
dcc1Δ 0.0078 0.043 ± 0.004 40 0.003 
ctf8Δ 0.0082 0.041 ± 0.005 39 0.008 
she1Δ 0.0053 0.048 ± 0.004 45 0.008 
mcm21Δ 0.0059 0.060 ± 0.005 42 0.31 
37°C 
Wild type 0.0028 0.090 ± 0.007 40 NA 
ipl1-321 0.0045 0.052 ± 0.004 36 <0.001 
kip3Δ 0.0125 0.061 ± 0.009 19 0.014 
ipl1-321 kip3Δ 0.0076 0.042 ± 0.010 17 <0.001 

NA, not applicable. Cells with indicated the genotypes expressing GFP-Tub1 were imaged every 10 s, and the lengths of the spindle halves were measured at each time point. A recovery event was scored each time a spindle-half switched from shrinkage to growth. The shrinkage rate (R(hs)) represents the slope of the half-spindle lengths when plotted versus time (mean ± SEM). P-values were calculated using a model I analysis of variance test. Half-spindle shrinkage rates for each mutant were directly compared with the wild-type rates.

or Create an Account

Close Modal
Close Modal