TABLE 1

Segregation of the gamma-radiation-resistant phenotype in F2 progeny from backcrosses of sog uvh1-2 to uvh1-2 plants

Cross (female × male)RadiationRRadiationSχ2 for 3:1
uvh1-2 sog1-1 × uvh1-2 16420.21
uvh1-2 sog1-2 × uvh1-2 22530.76
uvh1-2 sog1-3 × uvh1-2 20660.14
uvh1-2 sog1-4 × uvh1-2 16570.37
uvh1-2 sog1-5 × uvh1-2 15692.23
uvh1-2 sog1-6 × uvh1-2 27850.04