Fig. 4

Expression of phenylpropanoid pathway genes in oil palm flower. Transcript levels (± SE, n = 4) of EgCvOMT1 (b), EgCvOMT2 (d), EgCVS (f), EgF5H (h) and EgCOMT (i) in different tissues of oil palm. Samples from different floral stages were collected based on the description of Fig. 2b. Transcript levels were analyzed by qRT-PCR. UBQ: Ubiquitin gene. a Phylogenetic relationships between EgCvOMT and O-methyltransferases from other plants. c Phylogenetic relationships between EgCVS and other NADPH dependent PIP reductases from plants. e Phylogenetic relationships between EgF5H and P450s from other plants. g Phylogenetic relationships between EgCOMT and O-methyltransferases from other plants. Neighbor-joining phylogenetic trees were constructed using MEGA5.1 based on multiple protein sequence alignments made with ClustalX