Table 6. Comparison of qualitative mode-of-inheritance of QTL and epistatic interactions between different phenotypic categories.
Mode-of-inheritance§category | Sign | Fifteen yield-correlated traits | Nine metabolic traits | P t-test | ||||
With heterosis | Without heterosis | P t-test | Total | |||||
Identified QTL | A | - | 11.2% (19) | 12.7%(28) | 0.834 | 12.1%(47) | 22.1%(43) | 0.197 |
+ | 11.2% (19) | 13.6%(30) | 0.130 | 12.6%(49) | 10.8%(21) | 0.914 | ||
P t-test | 0.6024 | 0.293 | 0.923 | 0.105 | ||||
PD | - | 21.8%(37) | 23.2%(51) | 0.483 | 22.6%(88) | 31.8%(62) | 0.151 | |
+ | 27.1%(46) | 25.9%(57) | 0.682 | 26.4%(103) | 26.7%(52) | 0.650 | ||
P t-test | 0.156 | 0.250 | 0.079 | 0.287 | ||||
D | - | 2.9%(5) | 6.4%(14) | 0.123 | 4.9%(19) | 2.1%(4) | 0.122 | |
+ | 8.8%(15) | 9.1%(20) | 0.222 | 9.0%(35) | 3.1%(6) | 0.048 | ||
P t-test | 0.105 | 0.214 | 0.063 | 0.342 | ||||
OD | - | 2.4%(4) | 2.3%(5) | 0.843 | 2.3%(9) | 3.1%(6) | 0.565 | |
+ | 14.7%(25) | 6.8%(15) | 0.109 | 10.3%(40) | 0.5%(1) | 0.000 | ||
P t-test | 0.002 | 0.305 | 0.003 | 0.339 | ||||
total | - | 38.2%(65) | 44.5%(98) | 41.8%(163) | 59.0%(115) | |||
+ | 61.8%(105) | 55.5%(122) | 58.2%(227) | 41.0%(80) | ||||
Epistatic interactions | AA | - | 33.6%(72) | 35.0%(48) | 0.8774 | 34.2%(120) | 30.1%(53) | 0.078 |
+ | 28.5%(61) | 30.7%(42) | 0.7052 | 29.3%(103) | 30.7%(57) | 0.353 | ||
P t-test | 0.096 | 0.479 | 0.090 | 0.350 | ||||
AD/DA | - | 14.0%(30) | 13.1%(18) | 0.5892 | 13.7%(48) | 12.5%(22) | 0.423 | |
+ | 11.2%(24) | 12.4%(17) | 0.8892 | 11.7%(41) | 10.2%(18) | 0.705 | ||
P t-test | 0.362 | 0.955 | 0.463 | 0.802 | ||||
DD | - | 6.1%(13) | 4.4%(6) | 0.9934 | 5.49%(19) | 2.8%(5) | 0.335 | |
+ | 6.5%(14) | 4.4%(6) | 0.2891 | 5.7%(20) | 8.0%(14) | 0.253 | ||
P t-test | 0.485 | 0.708 | 0.752 | 0.859 | 0.078 | |||
total | - | 53.7%(115) | 52.6%(72) | 53.3%(187) | 47.3%(80) | |||
+ | 46.3%(99) | 47.4%(65) | 46.7%(164) | 52.7%(89) |
The abbreviations of the Mode-of-inheritance categories. A: additive; PD: partial-dominant; D: dominant; OD: over-dominant; AA: additive × additive; AD/DA: additive × dominant/dominant × additive; DD: dominant × dominant.