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By sequencing and analyzing the genomes of the partially and fully mycoheterotrophic orchids Platanthera zijinensis and P. guangdongensis, respectively, we reveal not only the potential molecular basis underlying important mycoheterotrophic traits, but also nutrient supplement mechanisms in the early and later stage of mycoheterotrophic growth, illuminating the evolution of mycoheterotrophic plants.
In plants, impairing transgenerational resetting of juvenility leads to premature flowering in the offspring. This robust reset process is mediated by de novo activation of MIR156/7-family genes at different developmental stages through distinct reprogramming routes.
