TRNT1 and infection: Thirdly, hybrids eliminate the defense-growth heterosis trade-offs by maintaining epigenetic repression of CCA1 in the middle of every infection day in a diurnal manner but inducing the epigenetic activation of CCA1 at dawn specifically on the first infection day, which effectively avoids the growth consumption caused by the constitutive activation of CCA1 at dawn of all infection days.