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Table 2 Phenotypic revertants were identified in the M2 generation among the progeny of EMS-treated cpr1 plants.

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

Source    Number of M2 plants phenotype
    cpr1 Intermediate Wild-type
Treatment Phenotype in M1 Family    
Experiment #1      
Mock3A cpr1 c1 99 0 0
Mock cpr1 c2 98 0 0
30 mM EMS cpr1 c3 66 9 0
30 mM EMS3B cpr1 c4 51 3 0
30 mM EMS3C Chimeric c5* 42 0 43
30 mM EMS Chimeric c6 21 0 18
Experiment #2      
Treatment      
Mock cpr1 c7 85 0 0
Mock cpr1 c8 96 0 0
30 mM EMS cpr1 c9 50 3 0
30 mM EMS cpr1 c10 28 0 0
30 mM EMS Chimeric c11 4 0 31
30 mM EMS Chimeric c12 31 0 74
  1. Plants with slightly curled leaves that were wider than cpr1 were called intermediate in phenotypic categorization. Chimeric M1 plants were those that developed chimeric sectors of wild type-looking leaves and stems. 3A, 3B, and 3C: Lines for which representative M2 plants are shown in Figure 3A to 3C.
  2. *: P < 0.05 by chi square test with expected ratio of 5:3 or 1:3 and degree of freedom = 1.