Fig. 3. Characterization and subcellular localization of TabHLH1.
A Phylogenetic analysis of TabHLH1 and related bHLH TFs. B Sequence alignment of TabHLH1 sequences in T. antungense. TabHLH1 (in this article, QBQ52949.1; Taraxacum antungense bHLH1), GhbHLH1 (CAA07615.1; Gerbera hybrid cultivar bHLH1), GbbHLH1 (BAJ17663.1; Gynura bicolor bHLH1), AabHLH1 (PWA53551.1; Artemisia annua bHLH1), DpbHLH (BAJ33516.1; Dahlia pinnata bHLH), CcbHLH1 (KVH95430.1; Cynara cardunculus var. scolymus bHLH1), CsbHLH1 (AOY10782.1; Camellia sinensis bHLH1), RgbHLH1 (ATZ76571.1; Rubus genevieri bHLH1) and AtbHLH1 (AAB72192.1; Arabidopsis thaliana bHLH1). The conserved domains pfam14215 (bHLH-MYC-N) and pfam00010 (HLH) are indicated by straight lines. The neighbor-joining method in MEGA software (version 8.0) was used to construct the phylogenetic tree. Bootstrap percentage (1000 replicates) values are listed above the branches. The TabHLH1 protein is labeled with a red circle. The black line indicates the bHLH-MYC-N motif; pfam14215. The red line indicates the HLH motif; pfam 00010. C Subcellular localization of the TabHLH1 protein in N. benthamiana leaves. Tobacco leaf cells were transiently transformed with recombinant plasmids containing TabHLH1-YFP or YFP (control group). DAPI staining indicates localization in the nucleus