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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.