Figure 1

Schematic representation of the sucrose, cellulose and starch metabolic pathways, showing genes identified with supporting RNA-seq mapping information. The grey boxes represent enzyme products. The arrows represent enzyme reactions, solid arrows are enzyme reactions where the predicted enzyme-coding genes were identified in sugarcane, dotted arrows where the gene was not identified. EC numbers are shown for the predicted enzyme-coding genes identified. EC numbers in red indicate predicted enzyme-coding genes that were mapped with more than a thousand RNA-seq reads. The number of mRNA reads mapped is indicated in parentheses below the EC number. If more than one BAC to a single Sorghum loci was sequenced, the minimum and the maximum number of reads mapped to all BACs are shown. EC 3.2.1.26: beta-fructofuranosidase, 3.1.3.24: sucrose-6-phosphate phosphohydrolase, EC 2.4.1.14: sucrose phosphate synthase, EC 2.4.1.12: cellulose synthase, EC 2.4.1.13: sucrose synthase, EC 2.7.7.9: UDP glucose pyrophosphorylase, EC 3.2.1.37: xylan 1,4-beta-xylosidase, EC 3.1.1.11: pectinesterase, EC 3.2.1.15: polygalacturonase, EC 5.4.2.2: phosphoglucomutase, EC 2.7.7.27: glucose-1-phosphate adenylyltransferase, EC 2.4.1.21: starch synthase, EC 2.4.1.18: 1,4-alpha-glucan branching enzyme and EC 3.2.1.2: beta-amylase.