Table 2.

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

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