Isolation and analysis of StMYB44. (A) Schematic structures of StMYB44 and AtMYB44. (B) Conserved domains in MYB44 proteins. Alignment was conducted using Clustal Omega (http://www.ebi.ac.uk/Tools/msa/clustalo/). (C) Phylogenetic tree analysis of StMYB44 and homologs from other plant species. The GenBank accession numbers for the amino acid sequences are XP_006367421 for Solanum tuberosum MYB44, XP_004238123 for Solanum lycopersicum MYB44, NP_001311792 for Nicotiana tabacum MYB44, AT5G67300 for Arabidopsis thaliana MYB44, AT4G37260 for Arabidopsis thaliana MYB73, AT3G50060 for Arabidopsis thaliana MYB77, AT2G23290 for Arabidopsis thaliana MYB70, XP_002285015 for Vitis vinifera MYB44, XP_012851720 for Erythranth eguttata MYB44, NP_001275798 for Citrus sinensis MYB44, XP_003611666 for Medicago truncatula MYB44, XP_012451049 for Gossypium raimondii MYB44, NP_001238087 for Glycine max MYB44 (previously named MYB50), and NP_001315374 for Cucumis melo MYB44.