Fig. 1From: RNA-Seq and iTRAQ reveal multiple pathways involved in storage root formation and development in sweet potato (Ipomoea batatas L.)Morphology and anatomy of fibrous roots and sweet potato storage roots at different stages. a Phenotypic characterization of fibrous roots and storage roots at different stages. b Transverse sections of fibrous roots and storage roots at different stages. F, fibrous root (diameter of approximately 1 mm); D1, initial storage root (diameter of approximately 1 cm); D3, storage root (diameter of approximately 3 cm); D5, storage root (diameter of approximately 5 cm); D10, storage root (diameter of approximately 10 cm); CT, cortex; PH, phloem; PXY, protoxylem; SXY, secondary xylem; CA, cambium; SM, secondary meristem; AM, anomalous meristemBack to article page