Fig. 1From: Genome-wide identification of the Capsicum bHLH transcription factor family: discovery of a candidate regulator involved in the regulation of species-specific bioactive metabolitesConserved amino acid analysis of bHLH domains in peppers. The height of the amino acid indicates the frequency observed in all the identified bHLH proteins. The black letters represented the highly conserved amino acids with a consensus ratio greater than 50%Back to article page