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Schematic presentation of the genetic network regulating LR and root hair development in plants. (A) Schematic presentation of the genetic network regulating LR development: LR initiation, LR emergence, and LR elongation. (B) Schematic presentation of the genetic network regulating root hair development. Blue ovals indicate positive regulators. Red ovals indicate negative regulators. Green arrows indicate the positive regulation, and red lines indicate negative regulation.
