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 Group | Gene Name | Enzyme | Locus |
|---|---|---|---|
| Suc synthesis | SPS1F | Suc phosphate synthase1F | At5g20280 |
| SPS3F | Suc phosphate synthase3F | At1g04920 | |
| SPP1 | Suc phosphatase1 | At1g51420 | |
| SPP2 | Suc phosphatase2 | At2g35840 | |
| Cell wall acid invertase | AtcwINV3 | Cell wall invertase3 | At1g55120 |
| AtcwINV4 | Cell wall invertase4 | At2g36190 | |
| Cytoplasmic neutral invertase | A/N-INVI | Alkaline/neutral invertase I (CINV2) | At4g09510 |
| A/N-INVB | Alkaline/neutral invertase B | At4g34860 | |
| A/N-INVF | Alkaline/neutral invertase F | At1g72000 | |
| Sugar transport protein | AtSTP2 | Monosaccharide-H+ symporter | At1g07340 |
| AtSTP8 | Monosaccharide-H+ symporter | At5g26250 | |
| AtSTP14 | Monosaccharide-H+ symporter | At1g77210 | |
| Vacuolar Glc transporter-like | AtVGT2 | Tonoplast sugar transport protein | At5g17010 |
| AtVGTL | Tonoplast sugar transport protein | At5g59250 | |
| Tonoplast monosaccharide transporter | AtTMT3 | Tonoplast monosaccharide transporter | At3g51490 |
| Plastidic sugar transporter | pGlcT | Putative monosaccharide transporter | At5g16150 |
| MEX1 | Maltose excess1 | At5g17520 | |
| SWEET sugar transporter | SWEET4 | Sugars will eventually be exported transporter4 | At3g28007 |
| SWEET8 (RPG1) | Sugars will eventually be exported transporter8 | At5g40260 | |
| SWEET10 | Sugars will eventually be exported transporter10 | At5g50790 | |
| Early responsive to dehydration6-like | AtERDL8 | Putative sugar transport protein (ERD group) | At3g05150 |
| AtERDL14 | Putative sugar transport protein (ERD group) | At4g04760 | |
| Starch biosynthesis | PGI1 (PGI) | Phosphoglucoisomerase | At4g24620 |
| PGM1 (PGM) | Phosphoglucomutase | At5g51820 | |
| APS1 (ADG1) | AGPase small subunit1 | At5g48300 | |
| APL2 | AGPase large subunit2 | At1g27680 | |
| GBS1 | Granule-bound starch synthase1 | At1g32900 | |
| SS1 | Soluble starch synthase1 | At5g24300 | |
| SS2 | Soluble starch synthase2 | At3g01180 | |
| SS3 | Soluble starch synthase3 | At1g11720 | |
| SS4 | Soluble starch synthase4 | At4g18240 | |
| BE2 | Starch-branching enzyme2 | At5g03650 | |
| BE3 | Starch-branching enzyme3 | At2g36390 | |
| ISA1 | Isoamylase1 | At2g39930 | |
| ISA2 | Isoamylase2 | At1g03310 | |
| Starch breakdown | GWD1 (SEX1) | Glucan water dikinase1 | At1g10760 |
| GWD2 | Glucan water dikinase2 | At4g24450 | |
| PWD (GWD3) | Phosphoglucan water dikinase | At5g26570 | |
| SEX4 | Starch excess4 | At3g52180 | |
| BAM1 (BMY7/TR-BYM) | β-Amylase1 | At3g23920 | |
| BAM2 (BMY9) | β-Amylase2 | At4g00490 | |
| BAM5 (BMY1/RAM1) | β-Amylase5 | At4g15210 | |
| BAM8 | β-Amylase8 | At5g45300 | |
| BAM9 (BMY3) | β-Amylase9 | At5g18670 | |
| AMY1 | α-Amylase1 | At4g25000 | |
| ISA3 | Isoamylase3 | At4g09020 | |
| LDA (PU1) | Limit dextrinase | At5g04360 | |
| PHS1 | Glucan phosphorylase | At3g29320 | |
| PHS2 | Glucan phosphorylase | At3g46970 | |
| DPE1 | Disproportionating enzyme | At5g64860 | |
| DPE2 | Maltose transglucosidase | At2g40840 | |
| Cytoplasmic hexose phosphate metabolism | PGIC | Phosphoglucoisomerase | At5g42740 |
| PGM2 | Phosphoglucomutase2 | At170730 | |
| PGM3 | Phosphoglucomutase3 | At1g23190 | |
| HXK1 | Hexokinase1 | At4g29130 | |
| HXK2 | Hexokinase2 | At2g19860 | |
| HKL3 | Hexokinase-like3 | At4g37840 | |
| AtTPS7 | T6P synthase | At1g06410 | |
| AtTPS11 | T6P synthase | At2g18700 | |
| AtTRE1 | Trehalase1 | At4g24040 | |
| Plastidic translocator and translocator-like | AtGPT1 | 6-Phosphate/phosphate translocator1 | At5g54800 |
| AtGPT-like | Glc-6-P/phosphate translocator-like protein | At5g17630 | |
| TPT (TPT1) | Phosphate/triose phosphate translocator precursor | At5g46110 |