Supplementary Tables 1 Drought-responsive proteins leaves, leaf sheaths and root of the K86-161 and B34-164 cultivars that were identified by LC/MS-MS Spot ID Peptide sequence Change in expression Source Leaves K86-161 cultivar 1 2 3 73-85 -R.LASIGLENTEANR.Q 121-136 -R.KIVDILVEQGIVPGIK.V 122-136 -K.IVDILVEQGIVPGIK.V 122-136 -K.IVDILVEQGIVPGIK.V 122-139 -K.IVDILVEQGIVPGIKVDK.G 140-162 -K.GLVPLAGSNNESWCQGLDGLASR.E 178-192 -R.TVVSIPNGPSELAVK.E 178-200 -R.TVVSIPNGPSELAVKEAAWGLAR.Y 23-50 -R.IDQIIGPVLDITFPPGKLPNIYNALIVK.S 99-107 -R.IAQIPVSEAYLGR.V 108-128 -R.VINALAKPIDGRGEIVASESR.L 108-128 -R.VINALAKPIDGRGEIVASESR.L 142-162 -R-SVYEPLQTGLIAIDSMIPIGR.G 123-143 -K.QSQSNPLPVEEQVATIYTGTR 123-143 -K.QSQSNPLPVEEQVATIYTGTR.G 164-180 -K.HLKDTKPQFQEIISSSK.T Zea mays Saccharum hybrid cultivar SP-80-3280 Zea mays 250-262 -R.VGLTALTMAEYFR.D 263-278 -R.DVNKQDVLLFIDNIFR.F Oryza sativa Japonica Group 5 82-92 -R.NNWVPCLEFSK.E 93-110 -K.EGFVYRENSTSPCYYDGR.Y 99-116 -R.ENSTSPCYYDGRYWTMWK.L 117-130 -K.LPMFGCTDASQVYK.E 131-145 -K.ELQEAIASYPDAYVR.I 131-145 -K.ELQEAIASYPDAYVR.I 146-153 -R.ILGFDNIR.Q Clarkia xantiana 6 106-122 -R.WAMLGALGCVFPELLAR.N 106-122 -R.WAMLGALGCVFPELLAR.N 123-134 -R.NGVKFGEAVWFK.A 127-134 -K.FGEAVWFK.A 4 Spinacia oleracea Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Leaves K86-161 cultivar 7 8 9 10 11 94-109 -R.LYSIASSAIGDFGDSK.T 117-129 -K.RLIYTNDAGEIVK.G 160-178 -K.DPNATIIMLATGTGIAPFR.S 94-115 -R.WAMLAVPGIIVPEALGLGNWVK.A 94-115 -R.WAMLAVPGIIVPEALGLGNWVK.A Zea mays Solanum lycopersicum 89-99 -K.WLAYGEVINGR.Y 164-176 -R.RLQDWYNPGSMGK.Q 177-184 -K.QYFLGLEK.F 185-207 -K.FLAGSGDPSYPGGPLFNPLG FGK.T 185-210 -K.FLAGSGDPSYPGGPLFNPLGFGKTEK.E Zea mays 214-234 - K.QLVATGKPESFGGPFLVPSYR.G 214-234 - K.QLVATGKPESFGGPFLVPS YR.G 245-261 - R.GGSTGYDNAVALPAGGR.G 245-269 - R.GGSTGYDNAVALPAGGRGDEEELQK.E Zea mays 143-154 - R.ANNFDLMYEQVK.A 143-154 - R.ANNFDLMYEQVK.A 185-198 - K.IFVIEGLHPMFDER.V 229-242 - R.GHSLESIKASIEAR.K 229-242 - R.GHSLESIKASIEAR.K 243-254 - R.KPDFDAYIDPQK.Q 311-320 - R.KLTCSYPGIK.F 362-372 - K.FYGEVTQQMLK.H 373-393 - K.HADFPGSNNGTGLFQTIVG LK.I 394-405 - K.IRDLYEQIVAER.A Zea mays Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Leaves B34-164 cultivar 14 16 17 18 20 21 95-107 -R.IAQIPVSEAYLGR.V 95-107 -R.IAQIPVSEAYLGR.V 108-119 -R.VINALAKPIDGR.G 108-119 -R.VINALAKPIDGR.G 108-128 -R.VINALAKPIDGRGEIVASESR.L 108-128 -R.VINALAKPIDGRGEIVASESR.L 129-140 -R.LIESPAPGIISR.R 129-140 -R.LIESPAPGIISR.R 256-266 -R.HTLIIYDDLSK.Q 138-153 -R.LYSIASSAIGDFGDSK.T 138-153 -R.LYSIASSAIGDFGDSK.T 191-203 -K.ITGPVGKEMLMPK.D 204-222 -K.DPNATIIMLATGTGIAPFR.S 43-54 -K.QGADRQLWFASK.Q 89-99 -K.WLAYGEVINGR.Y 89-99 -K.WLAYGEVINGR.Y 164-176 -R.RLQDWYNPGSMGK.Q 165-176 -R.LQDWYNPGSMGK.Q 185-207 -K.FLAGSGDPSYPGGPLFNPLGFGK.T 185-207 -K.FLAGSGDPSYPGGPLFNPLGFGK.T 185-210 -K.FLAGSGDPSYPGGPLFNPLGFGKTEK.E 245-261 -R.GGSTGYDNAVALPAGGR.G 245-269 -R.GGSTGYDNAVALPAGGRGDEE ELQK.E 274-288 -K.NAASSTGNITLSVTK.S 289-313 -K.SNPETGEVIGVFESVQPSDTDLGAK.A 39-51 -K.VAASGSPWYGPDR.V 39-53 -K.VAASGSPWYGPDRVK.Y 122-129 -K.FGEAVWFK.A 39-54 -K.AKPAAASGSPWYGPDR.V 39-54 -K.AKPAAASGSPWYGPDR.V 104-120 -R.WAMLGALGCVFPELLAR.N 125-132 -K.FGEAVWFK.A Oryza sativa Japonica Group Brachypodium distachyon Zea mays Zea mays Zea mays Zea mays Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Leaves B34-164 cultivar 22 143-154 -R.ANNFDLMYEQVK.A 243-254 -R.KPDFDAYIDPQK.Q 362-372 -K.FYGEVTQQMLK.H 394-405 -K.IRDLYEQIVAER.A 394-405 -K.IRDLYEQIVAER.A Zea mays Leaf sheaths K86-161 cultivar 24 45-55 - R.AIAPLFVEHAK.K 79-89 - K.IEAMPTFHFIK.N 79-89 - K.IEAMPTFHFIK.N 90-101 - K.NGETVETIVGAR.K Spinacia oleracea 25 13-23 -K.VNYYTPEYETK.D 24-32 -K.DTDILAAFR.V 138-150 -K.TFQGPPHGIQVER.D Epilobium palustre 26 73-85 -R.LASIGLENTEANR.Q 323-331 -K.AAQDALLLR.A 343-359 -K.YTSDGEAAEAKEGMFVK.N 28 29 132-143 -K.KLCLEPTSFTVK.A 133-143 -K.LCLEPTSFTVK.A 206-213 -R.VPFLFTVK.Q 214-234 -K.QLVATGKPESFGGPFLVPSYR.G 214-234 -K.QLVATGKPESFGGPFLVPSYR.G 245-261 -R.GGSTGYDNAVALPAGGR.G 245-261 -R.GGSTGYDNAVALPAGGR.G 60-72 -R.AGGVDDLPLVGNK.A 163-171 -K.YPLISDVTK.S 163-175 -K.YPLISDVTKSISK.A 197-212 -K.EGVIQHSTINNLAIGR.S Oryza sativa Japonica Group Zea mays Zea mays Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Leaf sheaths K86-161 cultivar 30 31 67-78 -R.LSGVTAEGLGVK.V 165-177 -R.SVQMEGLLWGASK.L 72-82 - K.ALEQLDAAVAK.G 97-110 - K.FNGGGHVNHSIFWK.N 111-126 - K.NLKPISEGGGEPPHGK.L 111-126 - K.NLKPISEGGGEPPHGK.L 168-183 - K.KLSVETTANQDPLVTK.G 168-183 - K.KLSVETTANQDPLVTK.G 206-217 - K.NVRPDYLNNIWK.V 206-217 - K.NVRPDYLNNIWK.V 32 73-86 -R.FYAISAEYPEFSNK.D 73-88 -R.FYAISAEYPEFSNKDK.T 33 54-71 -K.SSVTANDFYYHGLAGQGK.I 54-71 -K.SSVTANDFYYHGLAGQGK.I 78-100 -K.AAVTPAFVGQFPGVNGLGISAAR.L 78-100 -K.AAVTPAFVGQFPGVNGLGISAAR.L 78-100 -K.AAVTPAFVGQFPGVNGLGISAAR.L 201-211 -K.VTFLDDAQVK.K 202-212 -K.VTFLDDAQVKK.L 35 72-85 -K.RLASIGLENTEANR.Q 73-85 -R.LASIGLENTEANR.Q 121-136 -R.KIVDILVEQGIVPGIK.V 122-136 -K.IVDILVEQGIVPGIK.V 122-136 -K.IVDILVEQGIVPGIK.V 140-162 -K.GLVPLAGSNNESWCQGLDGLASR.E 140-162 -K.GLVPLAGSNNESWCQGLDGLASR.E 178-192 -R.TVVSIPNGPSELAVK.E 36 138-150 -K.TFQGPPHGIQRER.D Zea mays Zea mays Hordeum vulgare subsp. vulgare Sorghum bicolor Zea mays Carex albursina Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Leaf sheaths B34-164 cultivar 37 38 39 142-157 -R.LYSIASSALGDFGDSK.T 166-177 -R.LVYTNENGELVK.G 178-194 -K.GVCSNFLCDLKPGAEVK.I 60-72 -R.AGGVDELPLVGNK.A 155-171 -K.SGGLGDLKYPLISDVTK.S 163-171 -K.YPLISDVTK.S 190-196 -R.GLFIIDK.E 197-212 -K.EGVIQHSTINNLAIGR.S 82-92 -R.NNWVPCLEFSK.E 117-130 -K.LPMFGCTDASQVYK.E 117-130 -K.LPMFGCTDASQVYK.E 131-145 -K.ELQEAIASYPDAYVR.I 131-145 -K.ELQEAIASYPDAYVR.I 146-153 -R.ILGFDNIR.Q Glycine max Brachypodium distachyon Miscanthus x giganteus Medicago truncatula 40 318-330 -K.LIALQEGMLVGISSGAAK.R 41 1-16 -.MAYVLISDLMYGDTDK.R Oryza sativa Japonica Group 144-123 -K.EREFPGQVLR.Y 144-165 -K.KTITEYGSPEEFLSQVDFLLGK.Q 144-165 -K.KTITEYGSPEEFLSQVDFLLGK.Q 145-165 -K.TITEYGSPEEFLSQVDFLLGK.Q 145-165 -K.TITEYGSPEEFLSQVDFLLGK.Q 200-209 -K.QYYSVSVLTR.T 210-230 -R.TADGDEGGKHQLITATVSDGK.L Sorghum bicolor 42 Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Leaf sheaths B34-164 cultivar 43 109-116 -K.QATPSDPR.T Populus trichocarpa Root K86-161 cultivar 46 47 48 49 50 44-55 -K.DDGTLASYVGFR.V 244-255 -K.NVDGLDIAQLVK.H 390-399 -R.MGAFTLGVNR.V Zea mays 25-38 -K.GILAADESTGTIGK.R 40-53 -R.LSSINVENVEENRR.A 85-94 -K.DGKPFVDVLK.E 137-149 -K.KVTPEVIAQYTVR.T Zea mays 111-126 -K.NLKPISEGGGEPPHGK.L 163-183 -K.KLSVETTANQDPLVTK.G Zea mays 59-72 - K.SSVHDVVLVGGSTR.I 328-339 - K.ELESLCNPIIAK.M Zea mays 65-74 - K.KANALLGYEK.L 117-130 - K.ELQEFKPVEEGASA.- Sorghum bicolor Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Root K86-161 cultivar 51 52 53 240-255 - K.VVTIDSYEDVPANSEK.S 340-351 - K.CGIAVEPSYPLK.K 113-120 - R.FRLPENAK.T 126-139 -R.AALENGVLTVTVPK.A 17-33 - K.LAEQAERYEEMVEFMEK.V 17-33 - K.LAEQAERYEEMVEFMEK.V 49-56 - R.NLLSVAYK.N 85-92 - R.VTLIKDYR.G 109-124 - K.LLESHLVPSSTAPESK.V 109-124 - K.LLESHLVPSSTAPESK.V 137-147 - R.YLAEFKTGAER.K Zea mays Zea mays Zea mays 54 91-104 -K.KYVYTIDDDCFVAK.N 186-195 -R.YVDAVMTIPK.G 163-171 -K.ASNPFVNLR.K Chlorella variabilis 57 25-39 - K.GILAADESTGTIGKR.L 85-94 - K.DGKPFVDVLK.E 237-249 - K.KVTPEVIAQYTVR.T 237-249 - K.KVTPEVIAQYTVR.T 238-249 - K.VTPEVIAQYTVR.T Zea mays 58 73 72-82 -K.ALEQLDAAVAK.G 97-110 -K.FNGGGHVNHSIFWK.N 97-110 -K.FNGGGHVNHSIFWK.N 111-126 -K.NLKPISEGGGEPPHGK.L 168-183 -K.KLSVETTANQDPLVTK.G 169-183 -K.LSVETTANQDPLVTK.G 206-217 -K.NVRPDYLNNIWK.V 223-233 -K.YAGEVYENVLA.- Saccharum officinarum 27-45 - R.SIVPSASGDSETAAFANAR.I 27-45 - R.SIVPSASGDSETAAFANAR.I Sorghum bicolor Supplementary Tables 1 continued Spot ID Peptide sequence Change in expression Source Roots B34-164 cultivar 59 72 74 12-28 - K.LAEQAERYEEMVEYMEK.V 32-43 - K.TVDVEELTVEER.N 44-51 - R.NLLSVAYK.N 90-103 - K.IEAELSNICDGILK.L 155-171 - K.AAQDIALAELAPTHPIR.L 155-171 - K.AAQDIALAELAPTHPIR.L 80-93 - R.FYAISAEYPEFSNK.D 80-95 - R.FYAISAEYPEFSNKDK.T 128-148 - K.FGGDTPYSIMFGPDICGYSTK.K 198-212 - K.QTGSIYEHWDILPPK.E 198-212 - K.QTGSIYEHWDILPPK.E 5-12 -K.FFVGGNWK.C 101-113 -R.ALLGESNEFVGDK.V 124-135 -K.VIACVGETLEQR.E 176-190 -K.VATPAQAQEVHASLR.D 176-190 -K.VATPAQAQEVHASLR.D Saccharum hybrid cultivar CP65-357 Triticum aestivum Zea mays