Research Article

Genome-Wide Characterization and Analysis of bHLH Transcription Factors Related to Crocin Biosynthesis in Gardenia jasminoides Ellis (Rubiaceae)

Figure 3

The distribution analysis of conserved motifs of GjbHLH genes in each subfamily and the phylogenetic tree and motif analysis of subfamily 2. (a) Distribution of 22 motifs in each subfamily. (b) The bHLH-MYC_N domain of subfamily 2 consists of motifs 12 and 7. (c) An ML phylogenetic tree was constructed with the 12 MYC2 genes from C. roseus, N. tabacum, T. chinensis, and A. thaliana and 9 MYCs from G. jasminoides. GjbHLH15.1 and GjbHLH15.7 branches were chosen as an outgroup. The MYC2s were downloaded with the sequence numbers: CrMYC2 (AF283507); NtMYC2a (HM466974) and NtMYC2b (HM466975); TcJAMYC2 (JX519289), TcJAMYC4 (JX519290), and TcJAMYC1 (FJ608574); TcMYC2a (MG494378); and AtMYC3 (AT5G46760), AtMYC4 (AT4G17880), AtMYC2.1 (AT1G32640), AtMYC2.2 (AT1G63650), and AtMYC2.3 (AT1G01260).
(a)
(b)
(c)