Table 3 Brown rice Cd concentration and HTD of different genotypes differing in the OsHMA3-OsNramp5-OsNramp1 region.

From: Validating a segment on chromosome 7 of japonica for establishing low-cadmium accumulating indica rice variety

Population

Year

Trait

Phenotype of different genotypes (Mean ± SD)

ANOVA

A

D

D/[A]

R2

japonica

indica

H

F

P

RIL

2016

Cd

0.486 ± 0.186

0.694 ± 0.274

n.a

12.05

< .0001

0.10

  

10.9

2017

Cd

0.769 ± 0.260

1.033 ± 0.372

n.a

10.07

< .0001

0.13

  

8.6

NIL9311

2017

Cd

1.491 ± 0.160

1.981 ± 0.294

1.736 ± 0.200

35.92

< .0001

0.25

0.00

0.01

17.9

HTD

106.7 ± 2.0

107.5 ± 1.4

n.a

2.99

0.0212

0.50

  

6.8

NIL611

2017

Cd

0.791 ± 0.081

0.527 ± 0.078

0.800 ± 0.095

101.48

< .0001

− 0.13

0.14

− 1.09

37.1

HTD

89.0 ± 2.7

75.0 ± 2.1

n.a

274.29

< .0001

− 7.0

  

84.3

NIL819

2017

Cd

0.820 ± 0.092

0.392 ± 0.118

0.765 ± 0.113

137.42

< .0001

− 0.21

0.17

− 0.79

45.4

HTD

92.0 ± 1.9

73.0 ± 1.6

n.a

1574.57

< .0001

− 9.5

  

96.6

IRAT129

2017

Cd

0.465 ± 0.107

        

9311

2017

Cd

 

1.838 ± 0.216

       

H611

2017

Cd

 

0.412 ± 0.044

       

H819

2017

Cd

 

0.436 ± 0.062

       
  1. HTD is the days to heading. Japonica and indica are lines carrying homozygous OsHMA3-OsNramp5-OsNramp1 haplotype from IRAT129 and indica variety (9311, H611 or H819), respectively. H, the lines carrying heterozygous OsHMA3-OsNramp5-OsNramp1 haplotype. A, additive effect of replacing OsHMA3-OsNramp5-OsNramp1ind haplotype with OsHMA3-OsNramp5-OsNramp1jap haplotype. D, degree of dominance. R2, the proportion of phenotypic variance explained by OsHMA3-OsNramp5-OsNramp1.
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