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Table 3 Candidate genes for amino acid traits as identified by a priori candidate genes from amino acid biosynthesis and degradation pathways

From: Genome-wide association study reveals that different pathways contribute to grain quality variation in sorghum (Sorghum bicolor)

Trait

SNP

Chr

Position (bp)a

candidate gene

Distance (kb)b

Annotation

Pathwayc

Asp family

1:10068032

1

10,068,032

Sobic.001G127700

−25.64

similar to Lysine Decarboxylase, putative

lysine degradation I

Leu/BCAA

1:1014946

1

1,014,946

Sobic.001G011700

−4.06

similar to Aspartokinase

superpathway of lysine, threonine and methionine biosynthesis II

Val/BCAA

1:24852243

1

24,852,243

Sobic.001G241200

−21.77

similar to EDR1

threonine degradation III (to methylglyoxal)

Ile/BCAA

1:69010559

1

69,010,559

Sobic.001G405500

4.08

similar to Pyruvate decarboxylase isozyme 2

superpathway of leucine, valine, and isoleucine biosynthesis

Phe/Shikimate family

1:69010559

1

69,010,559

Sobic.001G405500

4.08

similar to Pyruvate decarboxylase isozyme 2

superpathway of leucine, valine, and isoleucine biosynthesis

Tyr/Shikimate

1:69010559

1

69,010,559

Sobic.001G405500

4.08

similar to Pyruvate decarboxylase isozyme 2

superpathway of leucine, valine, and isoleucine biosynthesis

Leu/BCAA

1:72963758

1

72,963,758

Sobic.001G453100

−10.87

similar to Homocysteine S-methyltransferase 1

superpathway of lysine, threonine and methionine biosynthesis II

Lys

2:13818293

2

13,818,293

Sobic.002G113600

15.98

similar to Rac GTPase activating protein 3-like protein

superpathway of lysine, threonine and methionine biosynthesis II

Ile/Asp family

2:4671226

2

4,671,226

Sobic.002G049200

−15.65

weakly similar to PHD finger transcription factor-like

superpathway of leucine, valine, and isoleucine biosynthesis

Thr/Asp family

2:58060555

2

58,060,555

Sobic.002G193800

15.95

GLUCOSE TRANSPORTER TYPE 1

superpathway of lysine, threonine and methionine biosynthesis II

Leu/Pyruvate

3:11583493

3

11,583,493

Sobic.003G126500

17.82

similar to Os01g0269000 protein

leucine degradation I

Ala/Pyruvate

3:3063590

3

3,063,590

Sobic.003G033900

26.43

similar to 1-aminocyclopropane-1-carboxylic acid synthase

phenylalanine degradation III

Ala/total

3:5411028

3

5,411,028

Sobic.003G061300

−17.63

Thiamine pyrophosphate dependent pyruvate decarboxylase family protein

superpathway of leucine, valine, and isoleucine biosynthesis

Leu/Pyruvate

3:57321213

3

57,321,213

Sobic.003G234701

12.80

similar to Pectin-glucuronyltransferase-like

arginine degradation I (arginase pathway)

Gly

3:70271670

3

70,271,670

Sobic.003G391600

9.40

similar to Putative 4-coumarate:coenzyme A ligase

superpathway of lysine, threonine and methionine biosynthesis II

Lys

4:11594929

4

11,594,929

Sobic.004G114500

−18.26

Core-2/I-branching beta-1,6-N-acetylglucosaminyltransferase family protein

glycine cleavage complex

Ser

4:1351183

4

1,351,183

Sobic.004G016800

−22.65

similar to Putative serine/threonine protein kinase

threonine degradation III (to methylglyoxal)

Thr/total

4:49321838

4

49,321,838

Sobic.004G156000

10.33

similar to Putative steroleosin

lysine degradation II

Leu/Pyruvate family

4:65472831

4

65,472,831

Sobic.004G319400

−16.93

similar to DNA helicase RECQE-like

superpathway of leucine, valine, and isoleucine biosynthesis

Val/BCAA

4:65472831

4

65,472,831

Sobic.004G319400

−16.93

similar to DNA helicase RECQE-like

superpathway of leucine, valine, and isoleucine biosynthesis

Glu/Glutamate family

5:3605534

5

3,605,534

Sobic.005G039700

10.91

similar to Rac GTPase activating protein 1

superpathway of lysine, threonine and methionine biosynthesis II

Pro

5:3605534

5

3,605,534

Sobic.005G039700

10.91

similar to Rac GTPase activating protein 1

superpathway of lysine, threonine and methionine biosynthesis II

Pro/Glutamate family

5:3605534

5

3,605,534

Sobic.005G039700

10.91

similar to Rac GTPase activating protein 1

superpathway of lysine, threonine and methionine biosynthesis II

Lys

5:5579891

5

5,579,891

Sobic.005G055300

–

similar to Tropinone reductase

lysine degradation II

Lys

5:5579891

5

5,579,891

Sobic.005G055300

–

similar to Tropinone reductase

phenylalanine degradation III

Lys

5:5579891

5

5,579,891

Sobic.005G055400

1.07

similar to Amidase family protein

arginine degradation X (arginine monooxygenase pathway)

Val/BCAA

5:63968450

5

63,968,450

Sobic.005G164200

2.49

similar to Putative uncharacterized protein

superpathway of leucine, valine, and isoleucine biosynthesis

Val/BCAA

5:63968450

5

63,968,450

Sobic.005G164300

6.84

similar to Putative uncharacterized protein

superpathway of leucine, valine, and isoleucine biosynthesis

Ile/BCAA

5:67881473

5

67,881,473

Sobic.005G194900

−22.93

similar to Phosphoserine phosphatase

superpathway of serine and glycine biosynthesis I

Val/Pyruvate

5:67881473

5

67,881,473

Sobic.005G194900

−22.93

similar to Phosphoserine phosphatase

superpathway of serine and glycine biosynthesis I

Val/BCAA

5:67881473

5

67,881,473

Sobic.005G194900

−22.93

similar to Phosphoserine phosphatase

superpathway of serine and glycine biosynthesis I

Val/total

5:67881473

5

67,881,473

Sobic.005G194900

−22.93

similar to Phosphoserine phosphatase

superpathway of serine and glycine biosynthesis I

Met/Asp family

5:69690963

5

69,690,963

Sobic.005G210500

20.74

similar to ATP-dependent DNA helicase, RecQ family protein, expressed

superpathway of leucine, valine, and isoleucine biosynthesis

Leu/BCAA

6:54237869

6

54,237,869

Sobic.006G187900

−0.29

similar to Acc synthase

phenylalanine degradation III

Leu/BCAA

6:54237869

6

54,237,869

Sobic.006G187900

−0.29

similar to Acc synthase

tyrosine degradation I

Tyr/total

7:60330803

7

60,330,803

Sobic.007G168200

−14.06

similar to Peptidyl-prolyl cis-trans isomerase

phenylalanine degradation III

Tyr/total

7:60330803

7

60,330,803

Sobic.007G168200

−14.06

similar to Peptidyl-prolyl cis-trans isomerase

tyrosine degradation I

Leu/Pyruvate

8:1074094

8

1,074,094

Sobic.008G012400

−27.01

similar to Os11g0142500 protein

superpathway of leucine, valine, and isoleucine biosynthesis

Ala/total

8:51569085

8

51,569,085

Sobic.008G111100

1.99

Predicted transporter (major facilitator superfamily)

superpathway of lysine, threonine and methionine biosynthesis II

Leu/Pyruvate

8:52368227

8

52,368,227

Sobic.008G114900

18.62

similar to Rac GTPase activating protein 3, putative, expressed

superpathway of lysine, threonine and methionine biosynthesis II

Leu/Pyruvate

8:59438201

8

59,438,201

Sobic.008G160700

−28.52

similar to Methylcrotonoyl-CoA carboxylase subunit alpha, mitochondrial precursor

leucine degradation I

Glu/Glutamate family

8:5993722

8

5,993,722

Sobic.008G057500

1.10

similar to Aldehyde dehydrogenase family protein

arginine degradation I (arginase pathway)

Pro/Glu family

8:5993722

8

5,993,722

Sobic.008G057500

1.10

similar to Aldehyde dehydrogenase family protein

arginine degradation I (arginase pathway)

Hist/total

10:6862967

10

6,862,967

Sobic.010G080300

−16.74

similar to Putative aminoacylase

superpathway of lysine, threonine and methionine biosynthesis II

Cys

10:8489698

10

8,489,698

Sobic.010G094900

9.71

similar to Putative uncharacterized protein

Tryptophan degradation III (eukaryotic)

Cys/total

10:8489698

10

8,489,698

Sobic.010G094900

9.71

similar to Putative uncharacterized protein

Tryptophan degradation III (eukaryotic)

Val/BCAA

10:55465480

10

55,465,480

Sobic.010G212000

25.56

similar to Putative uncharacterized protein

arginine degradation I (arginase pathway)

Val/BCAA

10:55465480

10

55,465,480

Sobic.010G212000

25.56

similar to Putative uncharacterized protein

proline degradation I

Val/BCAA

10:55465480

10

55,465,480

Sobic.010G212000

25.56

similar to Putative uncharacterized protein

proline degradation II

Val/BCAA

10:55465480

10

55,465,480

Sobic.010G212000

25.56

similar to Putative uncharacterized protein

valine degradation I

  1. a Physical position in base pairs for the peak SNP according to v3.1 of the sorghum genome
  2. b Distance of the gene from the significant SNP
  3. c Biosynthesis or degradation pathway of the candidate gene as curated from the Gramene pathway tool [38]