Supporting information – Tables Table S1 Genotyping primers for mutants Mutant line Seed stock Primer code Primer sequences (5’-3’) tt1 SALK_107737C tt2-3 FLAG_106F02 tt2-5 SALK_005260 tt5-4 SALK_034145 tt6-1 SALK_061570 tt7-8 SALK_089186 tt8 SALK_063334 tt10-10 SALK_128292C tt18-12 SALK_028793 tt19-1 SALK_113805C fae1-2 SALK_086589 LP RP LP RP LP RP LP RP LP RP LP RP LP RP LP RP LP RP LP RP LP RP LBb1.3 AGCGATTGAATGTCTTGAAGC AACCCTGCAATGACAAAGTTG CTAAAACCGAATAACCCGACC CAACAAGTGAAGTCTCGGAGC GCGGGTCAGAATCTAGTTTCC AAGCAGATGGTCGTTGATAGC GGAGGGAATGTTTCTTCCTTG TTTTTCTTTGATTTTCCGAAAG ACTGCCAAGGTATGTGTTTCG TACTCACGGTGGCCAGATAAG ATGAATCAGACATCGCTCAGC TGAACAAGTTAGGATGTCGGC AACATTATTGCGACCGTTGAG GGAAGAAGCATGGAACAGAAG CAGAATCTGCTGATTTGGCTC TCAGCCATTGTTTTTGGAAAC TTCAACCATTTTGATACTTGCG GTGTCTTCGTTTGCTAGCGAC AGAGACTTGCCCAAAAGGTTC CTTTCTGGAGCTGCACTCAAC TTTGGCTGATGTAGGCTCATC TTCGATGTGTGCAACAAGAAG ATTTTGCCGATTTCGGAAC All Salk lines Table S2 Primer pairs used to amplify promoter and cDNA fragments for the construction of ProLEC2:TT2 and ProABI5:TT2 molecular cassettes Primer codes Primer sequence(5'-3') PCR product size Hind III-ProABI5-F CTCTAAGCTTCCTATGTAAAACATTCTCAGC 2140 bp Kpn1-ProABI5-R CCTAGGTACCAACAACTGCATCATATACACAAC Hind III-ProLEC2-F GGTGACAGTCAAGCTTATATTATC Kpn 1-ProLEC2-R TTACGGTACCTCCATTTTTCCCGGAGAGAGAGAG Kpn 1TT2-F TAACGGTACCATGGGAAAGAGAGCAACTACTAGTGTG Sac 1-TT2-R TAAAGAGCTCTCAACAAGTGAAGTCTCGGAGC 1330 bp 777 bp Table S3 Ingredients in the buffers used for the CHIP enrichment test Buffer type MC buffer Reaction buffer IP buffer High-salt IP buffer LNDET buffer Elution buffer Ingredients 0.1 M sucrose, 50 mM NaCl , 0.1 M sucrose, 10 mM potassium phosphate (pH 7.0) 150 mM NaCl, 1%Triton X-100, 1 mM EDTA, 0.1 % SDS, 150 mM NaCl, 1 mM EDTA, 1%Triton X-100, 0.1 % SDS, 50 mM HEPES (pH 7.5) 150 mM KCl, 10 mM ZnSO4, 0.05 % SDS, 5 mM MgCl2, 1 % Triton X-100,50 mM HEPES (pH 7.5) 500 mM KCl, 10 mM ZnSO4, 0.05 % SDS, 5 mM MgCl2, 1 % Triton X-100,50 mM HEPES (pH 7.5) 10 mM Tris, pH 8.0, 0.25 M LiCl, 1% deoxycholate, 1% Nonidet P-40, 1 mM EDTA 1% SDS, 10 mM EDTA, 50 mM Tris (pH 8.0) Table S4 Primer pairs applied for the ChIP enrichment test Code Primer Sequence FUS3-CHIP-F1 FUS3-CHIP-R1 FUS3-CHIP-F2 FUS3-CHIP-R2 FUS3-CHIP-F3 FUS3-CHIP-R3 FUS3-CHIP-F4 FUS3-CHIP-R4 FUS3-CHIP-F5 FUS3-CHIP-R5 FUS3-CHIP-F6 FUS3-CHIP-R6 FUS3-CHIP-F7 FUS3-CHIP-R7 FUS3-CHIP-F8 FUS3-CHIP-R8 FUS3-CHIP-F9 FUS3-CHIP-R9 FUS3-CHIP-F10 FUS3-CHIP-R10 FUS3-CHIP-F11 FUS3-CHIP-R11 EF1aA4-qRT-F EF1aA4-qRT-R TUB2-qRT-F TUB2-qRT-R AACTCCCGTTGGAGTTGGTC CTTTGTGTCCTCCCGTGACA GTGGAAAAGTGGACGTAGATGC TTACTCATGGTCACGCCTCG ATCGTGTGCGTGAGAAGTGT AAATTGGCCGGAGCCACATA AGCAAATCAAGATTTCGCGGT TTTGGATTCCGGTCCACAGAA TTCTGTGGACCGGAATCCAA AACTTAGTACACACAACTTCAGGA AGTCAATACATAAAATCTACA AGCTGTAACAGATTTCAACTA ACGCCCTTATCAAGAAAAATGGA AACACATTTCCATGGGTTTTAACT ACGGGCGTTACTAAATGAAAGT TGCGACCAAGAATAAAGGCT ACCATGCACAATCCACTCGT ACGCAACAAGATCTAATGCCAC AACCCAAATCTCTGATTGCCCA AAATGGTGGATCTCTTTGGGTT TGGACGGTTTTCACGTTTGG TCCGTTATAGATTCGTACTAGCCA CTGGAGGTTTTGAGGCTGGTA CCAAGGGTGAAAGCAAGAAGA ATCCGTGAAGAGTACCCAGAT AAGAACCATGCACTCATCAGC