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Table 1 Genetic analysis of Sm disease-resistance in different generations

From: Mapping and screening of the tomato Stemphylium lycopersici resistance gene, Sm, based on bulked segregant analysis in combination with genome resequencing

  

No. of plants

Expected segregation

Generation

Total

Resistant (R)

Susceptible (S)

ratio R:S

χ2

P1 (Motelle)

80

80

0

  

P2 (Moneymaker)

80

0

80

  

F1

50

50

0

  

F2

519

379

140

1:3

0.93

BC1P1

185

89

96

1:1

0.20

  1. P1: Resistant female, Motelle; P2: Susceptible male, Moneymaker. The F1 plants were self-crossed to produce F2 seeds, and the BC1 plants were obtained from a backcross between P1 and F1 lines