Table 5.
QTLs identified for qualitative and quantitative color traits using interval mapping method.
| Traits | QTL a | LG | Marker close to peak | Marker position (cM) |
Marker interval | Marker LOD b |
PVE c (%) | Kruskal–Wallis analysis | |
|---|---|---|---|---|---|---|---|---|---|
| K* | Signif. d | ||||||||
| Visual color scores | |||||||||
| Leaf color | qLC1.1 | 1 | Chr8_27824291 | 49.66 | Chr8_27754834- Chr8_28148003 |
3.53 | 10.2 | 5.497 | ** |
| Peel color | qSC1.1# | 1 | Chr8_27824291 | 49.66 | Chr8_27753764- Chr8_28148003 |
3.53 | 10.2 | 5.497 | ** |
| Pulp color | qPC2.1 | 2 | Chr10_28058277 | 52.056 | Chr10_28058493- Chr10_28057228 |
18.41 | 43.2 | 61.076 | ******* |
| Leaf color space values | |||||||||
| L* | qLL1.1# | 1 | chr8_27824291 | 49.66 | chr8_27754834- chr8_28148003 |
3.94 | 11.4 | 7.2 | *** |
| qLL10.1 | 10 | chr11_1363548, chr11_1363549 |
26.032 | chr11_1127813- chr11_1355372 |
3.22 | 9.7 | 4.8 | ** | |
| Peel color space values | |||||||||
| L* | qPEL1.1 | 1 | chr8_28586129 | 23.412 | chr8_28586227- chr8_29374340 |
4.03 | 14.3 | 4.48 | ** |
| qPEL2.1 | 2 | chr10_28575868 | 48.838 | chr10_28451887- chr10_28056771 |
3.1 | 11.2 | 1.8 | – | |
| a* | qPEA1.1 | 1 | chr8_28586129 | 23.412 | chr8_28586227- chr8_29374340 |
4.45 | 15.7 | 7.1 | *** |
| qPEA1.2# | 1 | chr8_27824291 | 49.66 | Chr8_28212658- Chr8_27753764 |
3.11 | 11.2 | 5.2 | ** | |
| b* | qPEB2.1 | 2 | chr10_28797593 | 41.251 | chr10_28571783- chr10_28110087 |
32.35 | 71.1 | 14.6 | ****** |
| qPEB9.1 | 9 | chr10_3716840 | 25.925 | chr10_3689413- chr10_2542007 |
3.74 | 12.6 | 1.6 | – | |
| qPEB7.1 | 7 | chr2_16469764 | 28.195 | chr2_16469934- chr2_23000024 |
3.48 | 12.5 | 0.107 | – | |
| Pulp color space values | |||||||||
| L* | qPUL2.1 | 2 | chr10_28434131 | 43.228 | chr10_28797593- chr10_28058277 |
9.74 | 27.9 | 34.7 | ******* |
| a* | qPUA2.1 | 2 | chr10_28434066 | 45.35 | chr10_28434131- chr10_28508236 |
13.2 | 35.4 | 49.7 | ******* |
| b* | qPUB10.1 | 10 | chr11_903846 | 31.76 | chr11_1172401- chr11_888724 |
8.51 | 24 | 5.0 | ** |
| qPUB2.1 | 2 | chr10_27905644 | 59.114 | chr10_28123634- chr10_26958617 |
5.62 | 17.2 | 7.8 | *** | |
L*, a*, b*- Color space values.
K*- Kruskal Wallis test statistic.
a
QTLs named with ‘q’ as prefix followed by abbreviation of traits and LG number.
b
Logarithm of odds (above the genome wide threshold LOD for each trait).
c
Percentage of phenotypic variance explained by the QTL.
d
significance levels: ** P<0.001; *** P<0.0005; **** P<0.0001, ***** P<0.00005, ****** P<0.00001, ******* P<0.000005.
#QTL detected for both visual color and color space values with overlapping marker intervals.
-Dash denotes no significance.
No significant QTLs for leaf a* and b* values were identified.