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Table 2 Number of unigenes encoding key enzymes involved in starch and sucrose biosynthesis and amino and nucleotide sugar metabolism in P. cyrtonema

From: Transcriptome analysis of Polygonatum cyrtonema Hua: identification of genes involved in polysaccharide biosynthesis

Enzyme name EC number Unigene Number No. in tubers No. in roots No. in leaves
β-Fructofuranosidase (sacA) 3.2.1.26 35 15 19 17
Hexokinase (HK) 2.7.1.1 24 8 11 8
Fructokinase (scrK) 2.7.1.4 14 6 5 7
Mannose-6-phosphate isomerase (MPI) 5.3.1.8 3 3 3 3
Phosphomannomutase (PMM) 5.4.2.8 10 4 6 7
Mannose-1-phosphate Guanylyltransferase (GMPP) 2.7.7.13 14 5 5 8
GDP-mannose 4,6-dehydratase (GMDS) 4.2.1.47 7 4 4 4
GDP-l-fucose synthase (TSTA3) 1.1.1.271 3 0 2 2
Glucose-6-phosphate isomerase (GPI) 5.3.1.9 17 9 10 9
Phosphoglucomutase (pgm) 5.4.2.2 11 5 6 5
UTP-glucose-1-phosphate Uridylyltransferase (UGP2) 2.7.7.9 117 52 64 64
UDP-glucose 4-epimerase (GALE) 5.1.3.2 13 7 8 8
UDP-glucuronate 4-epimerase (UGE) 5.1.3.6 12 4 4 4
UDP-glucose 6-dehydrogenase (UGDH) 1.1.1.22 7 4 2 2
UDP-apiose/xylose synthase (AXS) AXS 7 4 5 2
UDP-arabinose 4-epimerase (UXE) 5.1.3.5 23 6 7 8
UDP-glucose 4,6-dehydratase (RHM) 4.2.1.76 16 6 10 9
3,5-Epimerase-4-reductase (UER1) 5.1.3.- 1.1.1.- 4 2 4 3