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Table 7 Marker-trait association of crtRB1 and lcyE with carotenoid content of 130 yellow maize inbred lines

From: Marker-trait association analysis of functional gene markers for provitamin A levels across diverse tropical yellow maize inbred lines

  

Functional DNA (PCR) markers**

Season

Carotenoids*

crtRB15′TE

crtRB1Indel4

crtRB13′TE

lcyE5TE

lcyE216(SNP)

lcyE3′Indel

  

P

R2

P

R2

P

R2

P

R2

P

R2

P

R2

Year 1

βcar

6.6E-13

0.53

  

1.2E-12

0.51

      
 

βcry

2.8E-08

0.32

  

1.5E-07

0.28

      
 

zeax

3.7E-08

0.31

  

1.5E-07

0.28

      
 

lut

      

3.1E-03

0.11

1.6E-03

0.08

  
 

pva

1.2E-07

0.26

2.3E-03

0.09

6.5E-07

0.23

      
 

lnβcar/βcry

8.6E-12

0.47

  

7.7E-11

0.42

      
 

lnβcar/Zeax

4.1E-11

0.45

  

1.7E-10

0.42

      
 

lnβcar/all

5.4E-08

0.30

  

3.7E-08

0.30

      
 

lnβbr/αbr

1.3E-04

0.15

  

4.7E-04

0.13

  

6.7E-04

0.10

  

Year 2

βcar

4.4E-10

0.38

  

7.9E-11

0.42

      
 

βcry

4.6E-08

0.30

  

7.7E-08

0.29

      
 

zeax

1.2E-05

0.20

  

9.5E-06

0.20

      
 

lut

      

1.2E-04

0.18

2.7E-05

0.15

6.9E-04

0.12

 

tpva

2.2E-05

0.17

  

4.8E-06

0.20

      
 

lnβcar/βcry

2.1E-14

0.63

  

1.3E-13

0.58

      
 

lnβcar/Zeax

8.1E-11

0.44

  

1.3E-11

0.47

      
 

lnβcar/all

5.4E-09

0.34

  

2.5E-10

0.41

      
 

lnβbr/αbr

      

2.6E-04

0.16

9.1E-07

0.21

5.8E-05

0.17

Combined***

βcar

3.4E-12

0.49

  

2.5E-12

0.50

      
 

βcry

1.1E-08

0.34

  

3.2E-08

0.31

      
 

zeax

1.6E-06

0.24

  

1.8E-06

0.23

      
 

lut

      

4.3E-05

0.20

1.5E-06

0.20

  
 

tpva

1.2E-08

0.31

  

6.3E-09

0.33

      
 

lnβcar/βcry

1.8E-14

0.63

  

8.4E-14

0.59

      
 

lnβcar/Zeax

1.9E-11

0.47

  

1.1E-11

0.48

      
 

lnβcar/all

9.3E-09

0.33

  

4.5E-10

0.39

      
 

lnβbr/αbr

8.1E-03

0.08

    

7.2E-04

0.14

2.0E-06

0.20

8.3E-03

0.08

  1. *Carotenoid abbreviations are described under Table 3. βbr/αbr = β-branch/α-branch carotenoids,
  2. βcar/βcry = β-carotene/β-cryptoxanthine, βcar/Zeax = β-carotene/zeaxanthine; βcar/all = β-carotene/total carotenoids.
  3. ** Only significant values are indicated. Names of functional markers for each gene are described in Table 2. Significance thresholds are 1.67E-04 and 8.3E-3 at 1% and 5%, respectively, after Bonferroni multiple test correction (alpha/number of markers analyzed per trait, i. e., 0.01/6 = 1.7E-04 and 0.05/6 = 8.3E-3) (TASSEL user’s guide 2011).
  4. ***BLUEs calculated from the two year data illustrated using bar graph in Figure 3.