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Table 2 Results of genotypes based on Ind306 and Pita-based marker among the 194 Pi46 homozygous plants

From: Improvement of rice blast resistance by developing monogenic lines, two-gene pyramids and three-gene pyramid through MAS

 

Pita homozygous

Pita heterozygous

pita homozygous

Total

Segregation ratio for Pita

Segregation ratio for Pi2

Pi2 homozygous

11a

22

14b

47

—

—

Pi2 heterozygous

24

50

28

102

—

—

pi2 homozygous

13c

22

10d

45

—

—

Total

48

94

52

194

48:94:52

47:102:45

χ 2

—

—

—

—

0.35

0.56

  1. Note: a and d mean that the plants carried three R genes (Pi46 + Pi2 + Pita) and one R gene (Pi46), respectively; b and c mean that the plants carried two R genes, Pi46 + Pi2 and Pi46 + Pita, respectively; χ2(0.05, 2) = 5.99.