Fig. 2From: Comparative functional genomics analysis of bHLH gene family in rice, maize and wheatIntron distribution within the bHLH domain of the AtbHLH, OsbHLH, ZmbHLH, TabHLH proteins. Scheme of intron distribution patterns (designated A to V) within the bHLH domains. Position of introns is indicated by “丫” based on the bHLH region of TabHLH136, which is shown at the top, and the number corresponds to the intron phase. The count and percentage of bHLHs displaying each pattern in wheat (Ta), Arabidopsis (At), rice (Os) and maize (Zm) are given in the table at rightBack to article page