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. 2022 Mar 29;23(7):3731. doi: 10.3390/ijms23073731

Figure 1.

Figure 1

(a) Schematic diagram of the structure of KNOX and BLH proteins. KNOX proteins contain an ELK domain, an HD domain and an MEINOX domain which is composed of KNOX1 and KNOX2. BLH proteins contain an HD domain, a VSLTLGL domain and an MID domain which is composed of SKY and BELL. (b) Phylogenetic tree of 54 BLH homologous proteins that have been functionally identified. A total of 54 BLH protein sequences were aligned with ClustalX 2.1 program, and the phylogenetic tree was constructed by Neighbor-Joining method. All BLHs are divided into three class and each class is represented by different colors. Class I subfamily is represented by blue, class II subfamily is represented by pink and class III subfamily is represented by green. Gene prefixes represent different species. (Pp: Physcomitrium patens; Vs: Vandenboschia speciose; At: Arabidopsis thaliana; Sl: Solanum lycopersicum; St: Solanum tuberosum; Os: Oryza sativa L.; Zm: Zea mays L.; Gh: Gossypium hirsutum L.; Gm: Glycine max L.; Md: Malus domestica L.; Mt: Medicago truncatula; Ps: Pisum sativum L.; Cch: Camellia chekiangoleosa; Ptr: Populus trichocarpa; Jr: Juglans regia L.; Pg: Punica granatum L.).