Fig. 5From: Genome-wide survey of the phosphofructokinase family in cassava and functional characterization in response to oxygen-deficient stressSchematic diagram of the different depths of cassava root and qRT-PCR analysis of three MePFK genes from the different depths of cassava root. 1 is under the periderm (sclerenchyma, parenchyma and phloem), 2 refers to the storage parenchyma, 3 refers to the tuber centre (xylem vessels and fibres)Back to article page