Fig. 1From: Systematic analysis of the basic/helix-loop-helix (bHLH) transcription factor family in pummelo (Citrus grandis) and identification of the key members involved in the response to iron deficiencyPhylogenetic tree and subfamily classifications of CgbHLH and AtbHLH proteins. The conserved protein sequences of a total of 128 CgbHLHs and 136 AtbHLHs were used to construct neighbor-joining phylogenetic tree. Arabic numerals 1 to 18 represent 18 of subfamilies. All CgbHLH proteins are highlighted with red color. The G-box, non-G-box, non-E-box and non-DNA binding of CgbHLHs are marked with different colored symbolsBack to article page