Fig. 4.
Expression profile of ZmbHLH genes in the leaves. a Relative expression values of ZmbHLH genes in the different regions of the third leaves of 9-day-old seedlings of maize inbred line B73. The original expression values of each ZmbHLH gene are listed in Additional file 7: Table S5. b RT-qPCR analysis of ZmbHLH genes involved in leaf development