Figure 1.

Multiple protein sequence alignment and phylogeny analysis of different REF/SRPP family members in the rubber tree. (A) Sequence alignment of REF and SRPP. Threshold into gray frames is 50% and the approximate location of the REF domain is underlined. Identical and similar amino acids are colored with dark and light gray frames, respectively; (B) Phylogeny relationships of REF and SRPP by complete protein sequence. Branch lengths are proportional to accumulated amino acid substitutions. Accession numbers in GeneBank of the six genes are listed in the Materials and Methods section; (C) The multiple domains of REF₂₅₈.