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Table 3 Results of genotypes based on Ind306 and Pita-based marker among the 217 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

12a

26

14b

52

—

—

Pi2 heterozygous

28

56

21

105

—

—

pi2 homozygous

15c

32

13

60

—

—

Total

55

114

48

217

55:114:48

52:105:60

χ 2

—

—

—

—

1.01

0.82

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