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Table 1 Phenotypic revertants were produced from every EMS-treated bal individual tested.

From: Phenotypic instability of Arabidopsis alleles affecting a disease Resistancegene cluster

Source    Number of M2 plants phenotype
    bal Intermediate Wild-type
Treatment Phenotype in M1 Family    
Experiment #1      
Mock bal b1 77 0 0
Mock bal b2 79 0 0
30 mM EMS bal b3 39 6 1
30 mM EMS bal b4 36 60 0
30 mM EMS bal b5 54 11 0
30 mM EMS bal b6 37 12 0
A thick stem in 30 mM EMS-treated bal Chimeric b7* 43 24 39
A thick stem in 30 mM EMS-treated bal Chimeric b8* 10 11 46
A thick stem in 30 mM EMS-treated bal Chimeric b9 24 50 19
A thick stem in 30 mM EMS-treated bal Chimeric b10* 0 24 14
A thick stem in 30 mM EMS-treated bal Chimeric b11 26 43 17
Experiment #2      
Mock bal b12 74 0 0
Mock bal b13 54 0 0
30 mM EMS bal b14 40 6 0
30 mM EMS bal b15 48 4 0
30 mM EMS Chimeric b16* 19 21 2
30 mM EMS Chimeric b17* 31 11 0
  1. Plants with a rosette diameter greater than the largest bal plant in the mock-treated control were counted as intermediate revertants, while ones with flat leaves were considered as wild-type revertants. M1 plants that displayed stems taller than 5 cm in addition to short and bushy stems resembling those observed in the bal variant were designated as chimeric.
  2. : P > 0.1 by chi square test with expected ratio of 1:2:1 and degree of freedom = 2.
  3. *: P < 0.05 by chi square test with expected ratio of 1:2:1 or 5:2:1 and degree of freedom = 2.