Table 2 Discovery of unigenes-encoding enzymes involved in terpenoid backbone biosynthesis, sesquiterpenoid and triterpenoid biosynthesis in Atractylodes chinensis transcriptome

MVA

Acetyl-CoA C-acetyltransferase

2.3.1.9

AACT

11

0

1

3-hydroxy-3-methylglutaryl coenzyme A synthase

2.3.3.10

HMGS

5

0

1

3-hydroxy-3-methylglutaryl coenzyme A reductase

1.1.1.34

HMGR

2

1

1

mevalonate kinase

2.7.1.36

MK

4

2

0

phosphomevalonate kinase

2.7.4.2

PMK

2

0

0

Mevalonate 5-diphosphate decarboxylase

4.1.1.33

MDD

3

0

1

Isopentenyl-diphosphate delta-isomerase

5.3.3.2

IDI

11

3

2

Geranylgeranyl pyrophosphate synthase

2.5.1.29

GGPS

5

2

0

Farnesyl diphosphate synthase

2.5.1.1 2.5.1.10

FPPS

3

1

2

MEP

1-deoxy-D-xylulose-5-phosphate synthase

2.2.1.7

DXS

11

4

1

1-deoxy-D-xylulose-5-phosphate reductoisomerase

1.1.1.267

DXR

4

0

0

2-c-methyl-d-erythritol 2,4-cyclodiphosphate synthase

4.6.1.12

MDS

1

0

0

4-diphosphocytidyl-2-C-methyl-D-erythritol kinase

2.7.1.148

CMK

2

0

0

Sesquiterpenoid

Germacrene D synthase

4.2.3.75

GDS

1

0

0

Germacrene A synthase

4.2.3.23

GAS

5

0

0

beta-caryophyllene synthase

4.2.3.57

QHS

17

0

0

Farnesol dehydrogenase

1.1.1.354

FLDH

1

0

0

Nerolidol synthase

4.2.3.48

NS

2

0

1

alpha-farnesene synthase

4.2.3.46

AFS

3

0

1

Terpene synthase

4.2.3.49 4.2.3.47 3.1.7.6

TPS

8

3

0

Triterpenoid

Squalene synthase

1.3.1.96

SQS

6

2

0

Squalene epoxidase

1.14.14.17

SE

4

2

0

Dammarenediol-II synthase

4.2.1.125

DS

13

4

4

Beta-amyrin synthase

5.4.99.39

β-AS

31

2

3

Lupeol synthase

5.4.99.41

LUS

1

0

0

Lanosterol synthase

5.4.99.7

LAS

31

0

0

Geraniol synthase

3.1.7.11

GS

1

1

0

Cytochrome P450

1.14.14.1

CYP450

1

0

1