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Table 2 QTLs detected with double and multiple QTL mapping. QTLs with an influence on fermentation parameters and the production of extracellular metabolites and volatile secondary metabolites that were additionally detected with double and multiple QTL searches

From: QTL mapping of volatile compound production in Saccharomyces cerevisiae during alcoholic fermentation

 

Trait

QTL name

Chromosome

Peak [bp]

LOD Score

 

Diethyl succinate

chr1@64.7

I

194,100

4.23

1

Ethyl 2-methylbutanoate

chr2@116.2

II

348,600

4.13

1

Hexanoic acid

chr2@122.1

II

366,300

2.54

2

Ethyl lactate

chr2@181.0

II

543,000

4.78

 

Ethyl 2-methylpropanoate

chr3@78.8

III

236,400

2.84

3

Pyruvate yield

chr4@91.9

IV

275,730

2.39

3

Ethyl butanoate

chr4@92.0

IV

275,985

3.63

4

Ethyl hexanoate

chr4@132.0

IV

396,000

2.59

5

2-methylpropyl acetate

chr4@165.8

IV

497,400

2.42

6

Diethyl succinate

chr4@175.0

IV

525,000

2.99

6

Ethyl octanoate

chr4@175.0

IV

525,000

2.14

 

Dodecanoic acid

chr4@298.0

IV

894,000

4.60

 

Valeric acid

chr4@324.9

IV

974,700

2.50

7

2-methylpropanol

chr4@348.9

IV

1,046,700

3.36

7

3-methylbutanol

chr4@348.9

IV

1,046,730

3.66

9

Pyruvate yield

chr4@411.9

IV

1,235,730

2.54

 

G/F ratio

chr6@62.0

VI

186,000

3.90

 

Ethyl 3-methylbutanoate

chr6@85.2

VI

255,600

4.14

12

Decanoic acid

chr7@198.0

VII

594,000

3.65

13

2-methylpropyl acetate

chr9@16.9

IX

50,700

2.09

13

Dodecanoic acid

chr9@17.6

IX

52,800

3.20

 

2-methylbutyl acetate

chr9@32.6

IX

97,800

1.75

14

Dry weight

chr9@60.0

IX

180,066

3.67

14

Ethyl propanoate

chr9@67.5

IX

202,500

2.88

14

Propanol

chr9@67.5

IX

202,500

1.85

 

2-phenylethyl acetate

chr9@101.1

IX

303,300

2.25

 

Propyl acetate

chr10@27.2

X

81,600

1.53

15

Ethyl hexanoate

chr10@61.3

X

183,900

2.97

15

Hexanoic acid

chr10@61.3

X

183,900

2.78

 

Ethyl octanoate

chr10@88.5

X

265,500

5.24

 

Propanol

chr10@104.7

X

314,100

2.08

16

2-methylpropanol

chr10@213.1

X

639,300

2.29

16

2-methylpropyl acetate

chr10@221.7

X

665,100

4.04

16

2-methylbutyl acetate

chr10@228.1

X

684,300

2.34

16

3-methylbutyl acetate

chr10@228.8

X

686,400

2.97

17

Decanoic acid

chr11@29.2

XI

87,600

3.95

17

Ethyl decanoate

chr11@34.2

XI

102,438

2.65

17

t80%

chr11@43.2

XI

129,600

3.10

17

Ethyl octanoate

chr11@51.7

XI

155,100

4.95

 

Glycerol yield

chr11@70.0

XI

210,000

2.72

 

G/F ratio

chr11@85.6

XI

256,800

2.65

 

Ethyl propanoate

chr11@107.7

XI

323,100

3.78

18

3-methylbutanoic acid

chr11@134.4

XI

403,170

3.68

 

2-methylpropyl acetate

chr12@98.3

XII

294,900

3.15

 

Ethyl 2-methylbutanoate

chr12@123.8

XII

371,400

3.34

 

Ethyl propanoate

chr12@139.6

XII

418,800

3.67

 

CO2 production rate at t80%

chr12@257.3

XII

771,900

2.47

 

2-methylpropanol

chr12@317.1

XII

951,300

3.08

 

G/F ratio

chr13@164.5

XIII

493,500

4.99

 

Propyl acetate

chr13@248.3

XIII

744,900

2.11

 

2-phenylethyl acetate

chr13@304.0

XIII

912,000

2.55

21

Dodecanoic acid

chr14@36.3

XIV

108,900

4.69

 

Ethyl 3-methylthiopropanoate

chr14@227.0

XIV

681,000

3.42

22

2-phenylethanol

chr15@132.0

XV

396,000

1.62

23

2-methylbutyl acetate

chr15@172.0

XV

516,000

2.55

 

Ethyl hexanoate

chr15@265.4

XV

796,200

4.47

 

Ethyl 3-methylbutanoate

chr15@304.4

XV

913,200

2.77

 

2-methylpropanoic acid

chr15@314.4

XV

943,200

2.95

 

2-phenylethyl acetate

chr15@352.0

XV

1,056,000

2.85

24

2-methylpropanol

chr16@13.8

XVI

41,400

4.06

24

2-methylbutyl acetate

chr16@16.4

XVI

49,200

2.78

24

G/F ratio

chr16@18.3

XVI

54,900

2.75

 

Valeric acid

chr16@116.5

XVI

349,500

2.04

25

Ethyl lactate

chr16@304.0

XVI

912,000

7.00

  1. Single traits that are influenced by the same QTL (under the condition that the distance between detected peaks is less than 10 cM; in combination with Table 1) are indicated with superscript numbers in the left column of the table