Table 4.
Quantitative Trait Loci (QTL) detected for friction discolouration (FD) in POP369 and POP356 pear populations
| Year | Data type | Parent | LG | Position | SNP marker | Kruskal-Wallis (K*) | Significance | (%) Variance |
|---|---|---|---|---|---|---|---|---|
| 2011 | average | POP369- female | 2 | 59.44 | nullss475883075 | 8.9 | P < 0.005 | 11.37% |
| 2011 | average | POP369- female | 15 | 6 | ss527788075 | 6.3 | P < 0.05 | 10.26% |
| 2011 | average | POP369- female | 14 | 4.93 | ss527788030 | 6.1 | P < 0.05 | 6.22% |
| 2011 | average | POP369- female | 3 | 48.09 | ss527788418 | 5.8 | P < 0.05 | 8.30% |
| 2011 | max | POP369- female | 2 | 59.44 | nullss475883075 | 10.1 | P < 0.005 | 12.09% |
| 2011 | max | POP369- female | 16 | 42.79 | nullss475878310 | 6.7 | P < 0.01 | 7.30% |
| 2011 | max | POP369- female | 14 | 4.93 | ss527788030 | 5.1 | P < 0.05 | 5.50% |
| 2011 | max | POP369- female | 3 | 48.09 | ss527788418 | 5.0 | P < 0.05 | 6.86% |
| 2012 | average | POP369- female | 3 | 26.02 | ss527788282 | 6.2 | P < 0.05 | 8.74% |
| 2012 | average | POP369- female | 14 | 8.8 | ss527788968 | 3.7 | P < 0.1 | 8.16% |
| 2012 | max | POP369- female | 3 | 26.02 | ss527788282 | 9.0 | P < 0.005 | 12.85% |
| 2012 | max | POP369- female | 14 | 4.93 | ss527788030 | 3.8 | P < 0.1 | 5.72% |
| 2012 | max | POP369- female | 10 | 36 | nullss475879653 | 3.5 | P < 0.1 | 3.48% |
| 2011 | average | POP369- male | 2 | 12.09 | nullss475877109 | 8.2 | P < 0.005 | 10.05% |
| 2011 | average | POP369- male | 14 | 3.4 | ss527789200 | 6.9 | P < 0.01 | 8.92% |
| 2011 | average | POP369- male | 13 | 2.75 | ss475882576 | 5.1 | P < 0.05 | 6.07% |
| 2011 | max | POP369- male | 2 | 12.09 | nullss475877109 | 9.1 | P < 0.005 | 10.70% |
| 2011 | max | POP369- male | 14 | 3.4 | ss527789200 | 7.1 | P < 0.01 | 9.15% |
| 2011 | max | POP369- male | 16 | 16.29 | nullss475878313 | 5.7 | P < 0.05 | 6.29% |
| 2011 | max | POP369- male | 13 | 2.75 | ss475882576 | 5.3 | P < 0.05 | 6.74% |
| 2011 | max | POP369- male | 7 | 16.79 | ss475878863 | 5.2 | P < 0.1 | 9.07% |
| 2012 | average | POP369- male | 7 | 42.04 | nullss475876200 | 8.0 | P < 0.005 | 8.34% |
| 2012 | average | POP369- male | 4 | 25.6 | ss475876768 | 7.3 | P < 0.01 | 8.68% |
| 2012 | max | POP369- male | 7 | 42.04 | nullss475876200 | 7.0 | P < 0.01 | 8.67% |
| 2012 | max | POP369- male | 2 | 20.08 | ss475877562 | 6.7 | P < 0.05 | 8.34% |
| 2012 | max | POP369- male | 4 | 25.59 | ss475876768 | 6.7 | P < 0.01 | 7.16% |
| 2012 | max | POP369- male | 9 | 9 | ss527787770 | 4.3 | P < 0.05 | 5.02% |
| 2011 | average | POP356- female | 11 | 23.60 | ss527788944 | 12.6 | P < 0.005 | 9.70% |
| 2011 | average | POP356- female | 15 | 3.44 | ss527789584 | 8.34 | P < 0.05 | 8.89% |
| 2011 | average | POP356- female | 5 | 0 | ss475879840 | 6.8 | P < 0.01 | 4.37% |
| 2011 | max | POP356- female | 11 | 2.96 | ss475880309 | 13.3 | P < 0.005 | 10.46% |
| 2011 | max | POP356- female | 15 | 3.44 | ss527789584 | 8.62 | P < 0.05 | 8.33% |
| 2011 | average | POP356- male | 11 | 20.60 | ss527788944 | 12.6 | P < 0.005 | 9.70% |
| 2011 | average | POP356- male | 2 | 3.17 | ss527788737 | 8.52 | P < 0.005 | 6.00% |
| 2011 | average | POP356- male | 15 | 85.81 | ss527789303 | 8.3 | P < 0.05 | 8.89% |
| 2011 | average | POP356- male | 16 | 104.88 | ss527789436 | 7.4 | P < 0.01 | 6.94% |
| 2011 | max | POP356- male | 11 | 20.60 | ss527788944 | 13.4 | P < 0.005 | 10.17% |
| 2011 | max | POP356- male | 2 | 3.17 | ss527788737 | 8.7 | P < 0.005 | 7.52% |
| 2011 | max | POP356- male | 15 | 85.81 | ss527789303 | 8.6 | P < 0.05 | 8.33% |
QTLs were identified using average and maximum FD score from multiple harvests of the same seedling. SNPs are presented using the NCBI dbSNP accession number (ss#). Apple SNPs are represented with an accession number starting with ‘4’ while pear SNPs accessions start with ‘5’.