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Table 1 Differential metabolites in the roots of the incompatible soybean variety PI437654 and three compatible soybeans, WM82, ZH13 and HF47, infected with the HG1.2.3.5.7

From: Combining targeted metabolite analyses and transcriptomics to reveal the specific chemical composition and associated genes in the incompatible soybean variety PI437654 infected with soybean cyst nematode HG1.2.3.5.7

Metabolite

PI 437654

WM82

ZH13

HF47

linolenic acid

−1.604a

−1.254

− 1.741

−1.172

D-leucine

−0.759

0.322

−2.313

−1.289

16-hydroxyhexadecanoic acid

−1.100

−0.537

−1.138

0.685

D,L-tryptophan

1.300

−0.544

−0.892

− 0.556

D-aspartic acid

−8.796

/

/

/

linoleic acid

−6.199

/

/

/

N-palmitoyl alanine

−3.060

/

/

/

cycloleucine

−1.632

/

/

/

D,L-2,4-diaminobutyric acid

−1.307

/

/

/

phytosphingosine

−0.987

/

/

/

10-oxo-nonadecanoic acid

−0.885

/

/

/

N-acetyltranexamic acid

3.688

/

/

/

nicotine

2.543

/

/

/

L-arginine

0.893

/

/

/

pipecolinic acid

−2.026

−1.591

−1.390

/

gallocatechin gallate

−1.688

− 1.573

/

/

4-methylquinoline

1.110

/

/

−0.584

nicotyrine

1.096

/

/

−0.563

L-trans-4-hydroxy-L-proline

1.047

/

/

−0.556

2-oxo-4-methylthiobutanoic acid

/

−0.852

−1.311

−0.474

4-hydroxycoumarin

/

−0.933

−1.293

−0.430

N-cyclohexanecarbonylpentadecylamine

/

−2.816

−4.143

/

PC(O-14:0/2:0)

/

−2.613

/

1.522

isoliquiritigenin

/

−2.000

−3.391

/

rhamnazin

/

−1.037

/

/

betulinic acid

/

−1.020

/

/

drimenol

/

−0.923

−2.296

/

3-hydroxy-7-methoxyflavone

/

2.170

−7.687

/

prunetin

/

1.637

/

/

baicalein

/

/

−1.560

/

ent-kaur-16-en-19-ol

/

/

/

−5.012

isopimaric acid

/

/

/

−3.091

communic acid

/

/

/

−2.529

hydroxy citronellal

/

/

/

−1.470

hexadecanamide

/

/

/

−1.324

dichotosinin

/

−2.044

/

−1.212

trans-ferulic acid

/

/

/

3.011

  1. Note: ‘a’ represents the log2 FC value, which is the ratio of the average relative expression of metabolites in the incompatible soybean variety PI437654 and the three compatible soybean varieties, WM82, ZH13 and HF47, infected by HG1.2.3.5.7 compared with that in the controls innoculated with water. A positive value indicates that the differential metabolites are up-regulated, while a negative value indicates the differential metabolites are down-regulated. ‘/’ indicates that such metabolites were absent in the tested soybean varieties