Figure 3: Rubber biosynthesis and expansion of the REF/SRPP gene family in Hevea.
From: The rubber tree genome reveals new insights into rubber production and species adaptation
a, The rubber biosynthesis pathway and expression profiles (reads per kilobase per million reads mapped; RPKM) of the genes involved in rubber biosynthesis. Lx, latex; Bk, bark; Lf, leaf; Rt, root; FF, female flower; MF, male flower. b, Phylogeny of the REF/SRPP gene family. Full-length coding sequences of the 18 REF/SRPPs are aligned with MAFFT v7.205. The tree is constructed by using MEGA5.1, with the Neighbour-Joining model and bootstrap test with 1,000 replicates. c, Genomic ___location of the Hevea REF/SRPP genes. Scaffolds are represented as solid bars with their names on the left and length scale on the bottom. Note that most of the REF/SRPP genes, including the four laticifer-specific ones (REF1, SRPP1, REF3 and REF7), are located in a single scaffold (Scaffold1222).
