Table I. Carbohydrate metabolism and transport genes included in this study

For a full list of all analyzed genes and the corresponding references, see Supplemental Table S1.

Metabolic/Transport GroupGene NameEnzymeLocus
Suc synthesisSPS1FSuc phosphate synthase1FAt5g20280
SPS3FSuc phosphate synthase3FAt1g04920
SPP1Suc phosphatase1At1g51420
SPP2Suc phosphatase2At2g35840
Cell wall acid invertaseAtcwINV3Cell wall invertase3At1g55120
AtcwINV4Cell wall invertase4At2g36190
Cytoplasmic neutral invertaseA/N-INVIAlkaline/neutral invertase I (CINV2)At4g09510
A/N-INVBAlkaline/neutral invertase BAt4g34860
A/N-INVFAlkaline/neutral invertase FAt1g72000
Sugar transport proteinAtSTP2Monosaccharide-H+ symporterAt1g07340
AtSTP8Monosaccharide-H+ symporterAt5g26250
AtSTP14Monosaccharide-H+ symporterAt1g77210
Vacuolar Glc transporter-likeAtVGT2Tonoplast sugar transport proteinAt5g17010
AtVGTLTonoplast sugar transport proteinAt5g59250
Tonoplast monosaccharide transporterAtTMT3Tonoplast monosaccharide transporterAt3g51490
Plastidic sugar transporterpGlcTPutative monosaccharide transporterAt5g16150
MEX1Maltose excess1At5g17520
SWEET sugar transporterSWEET4Sugars will eventually be exported transporter4At3g28007
SWEET8 (RPG1)Sugars will eventually be exported transporter8At5g40260
SWEET10Sugars will eventually be exported transporter10At5g50790
Early responsive to dehydration6-likeAtERDL8Putative sugar transport protein (ERD group)At3g05150
AtERDL14Putative sugar transport protein (ERD group)At4g04760
Starch biosynthesisPGI1 (PGI)PhosphoglucoisomeraseAt4g24620
PGM1 (PGM)PhosphoglucomutaseAt5g51820
APS1 (ADG1)AGPase small subunit1At5g48300
APL2AGPase large subunit2At1g27680
GBS1Granule-bound starch synthase1At1g32900
SS1Soluble starch synthase1At5g24300
SS2Soluble starch synthase2At3g01180
SS3Soluble starch synthase3At1g11720
SS4Soluble starch synthase4At4g18240
BE2Starch-branching enzyme2At5g03650
BE3Starch-branching enzyme3At2g36390
ISA1Isoamylase1At2g39930
ISA2Isoamylase2At1g03310
Starch breakdownGWD1 (SEX1)Glucan water dikinase1At1g10760
GWD2Glucan water dikinase2At4g24450
PWD (GWD3)Phosphoglucan water dikinaseAt5g26570
SEX4Starch excess4At3g52180
BAM1 (BMY7/TR-BYM)β-Amylase1At3g23920
BAM2 (BMY9)β-Amylase2At4g00490
BAM5 (BMY1/RAM1)β-Amylase5At4g15210
BAM8β-Amylase8At5g45300
BAM9 (BMY3)β-Amylase9At5g18670
AMY1α-Amylase1At4g25000
ISA3Isoamylase3At4g09020
LDA (PU1)Limit dextrinaseAt5g04360
PHS1Glucan phosphorylaseAt3g29320
PHS2Glucan phosphorylaseAt3g46970
DPE1Disproportionating enzymeAt5g64860
DPE2Maltose transglucosidaseAt2g40840
Cytoplasmic hexose phosphate metabolismPGICPhosphoglucoisomeraseAt5g42740
PGM2Phosphoglucomutase2At170730
PGM3Phosphoglucomutase3At1g23190
HXK1Hexokinase1At4g29130
HXK2Hexokinase2At2g19860
HKL3Hexokinase-like3At4g37840
AtTPS7T6P synthaseAt1g06410
AtTPS11T6P synthaseAt2g18700
AtTRE1Trehalase1At4g24040
Plastidic translocator and translocator-likeAtGPT16-Phosphate/phosphate translocator1At5g54800
AtGPT-likeGlc-6-P/phosphate translocator-like proteinAt5g17630
TPT (TPT1)Phosphate/triose phosphate translocator precursorAt5g46110