Fig. 1.

Phylogenetic relationship analysis and multiple sequence alignment of PbELF4 proteins. A Maximum likelihood phylogenetic tree showing the evolutionary relationships among ELF4/ELF4-like proteins from pear and other species. The red triangles and blue dots indicate members in pear and Arabidopsis, respectively. B Amino acid sequence alignment of ELF4/ELF4-like proteins from pear and Arabidopsis. The DUF1313 domain is marked with a black horizontal line, and the red box denotes four conserved amino acid residues