Table S1.

Oligonucleotide primers used in this work

Assays	Destination products	Templet	Primer name	Primer sequence
Transformation	p1300-PIF4-TAP	TAP	TAP-F	5′-CCGGGGATCCTCTAGAGGTGAACAAAAGTTGATTTCTGAA-3′
			TAP-R	5′-GATCCTGCAGGTCGACTCACTTGTCATCGTCATCCTTG’
		PIF4	PIF4-F	5′-TCCCCCCGGGATGGAACACCAAGGTTGGAG-3′
			PIF4-R	5′-TGCTCTAGAGTGGTCCAAACGAGAACCG-3′
Dual-LUC	pGreen-0800-YUC8p	YUC8 promoter	YUC8-F	5′-CCGCTCGAGATTAGGAGTAAACAAGAAGCAAGG-3′
			YUC8-R	5′-CGCGGATCCTCTTTTTTTATAAGTTTCTTTAATAAGTATT-3′
	pHBT-PIF4	PIF4	PIF4-F	5′-GAGGCGCGCCGGATCCATGGAACACCAAGGTTGGAG-3′
			PIF4-R	5′-GCACTCCCATGGATCCGTGGTCCAAACGAGAACCG-3′
qRT-PCR		IAA19	IAA19-F	5′-GGTGACAACTGCGAATACGTTACCA-3′
			IAA19-R	5′-CCCGGTAGCATCCGATCTTTTCA-3′
		IAA29	IAA29-F	5′-CACGGCGATGAACAACAACATAT-3′
			IAA29-R	5′-CTCTGTCGCAATCTTCATATTCG-3′
		CRY1	CRY1-F	5′-CTCTAAGAACCGCAGAAAAGCC-3′
			CRY1-R	5′-CTTTTCTCACACTCACTTCCCCA-3′
		YUC1	YUC1-F	5′-TGGAGAGTAAAGACTCATGAT-3′
			YUC1-R	5′-GTACTCACTCGCGTGAACGAT-3′
		YUC2	YUC2-F	5′-GGTGACACGGATCGGTTAGGGT-3′
			YUC2-R	5′-TGCCGAATAATGCATTACCCGT-3′
		YUC4	YUC4-F	5′-TTATGGCAAAAAAGAACCTACGAC-3′
			YUC4-R	5′-GGAAGTTTTTAGGGAAAGGCAT-3′
		YUC5	YUC5-F	5′-TTCAACGAGTGTGTCCAGTCTGCT-3′
			YUC5-R	5′-TCTCTGGAACAACTTTCTCCGCGT-3′
		YUC6	YUC6-F	5′-GGGCTGTCCATGTTCTTACTGAA-3′
			YUC6-R	5′-CGGGAAACAACCAAAAGGAA-3′
		YUC8	YUC8-F	5′-TGTATGCGGTTGGGTTTACGAGGA-3′
			YUC8-R	5′-CCTTGAGCGTTTCGTGGGTTGTTT-3′
		YUC9	YUC9-F	5′-CCTGCAATCAAACAGTTCTCGCGT-3′
			YUC9-R	5′-TGAAGCCAAGAAGGGACGTTGCTA-3′
		YUC10	YUC10-F	5′-TTCTGAAGTATGCTCCAGTGGCGA-3′
			YUC10-R	5′-GTTTGGTGGCGAAAGGACCTTGTT-3′
		ACT7	ACT7-F	5′-AGGCACCTCTTAACCCTAAAGC-3′
			ACT7-R	5′-GGACAACGGAATCTCTCAGC-3′
ChIP		YUC8	YUC8-F	5′-GGGAATGGGTTTGATGTGGAATT-3′
		IAA19	YUC8-R	5′-GAGAAGGGAAGTGATGGAATTAG-3′
			IAA19-F1	5′-GATATCAAATGACTCCACGTGTC-3′
			IAA19-R1	5′-TCCGTGAAAGCTCTCTTCTTCAT-3′
			IAA19-F2	5′-GGTGCTACAAATGTCGTTTGGTA-3′
			IAA19-R2	5′-GATGGGGTTTAGAGGACGTAGGG-3′
		IAA29	IAA29-F	5′-CTCACTACCTTTCGCTTAACGTG-3′
			IAA29-R	5′-GTAGTATGTAAATCTAGACCCAA-3′
		ACT2	ACT2-F	5′-CGTTTCGCTTTCCTTAGTGTTAGCT-3′
			ACT2-R	5′-CACAACGCATGCTAAACAGATCTAG-3′
Pull down	pCold-TF	PIF4	PIF4-F	5′-CCGGAATTCATGGAACACCAAGGTTGGAG-3′
			PIF4-R	5′-CGCGTCGACCTAGTGGTCCAAACGAGAACC-3′
	pGEX4T1	PIF3	PIF3-F	5′-CCGGAATTCATGCCTCTGTTTGAGCTTTTC-3′
			PIF3-R	5′-CCGCTCGAGTCACGACGATCCACAAAACT-3′
	pFastBac HTA	CRY1	CRY1-F	5′-CCGGAATTCATGTCTGGTTCTGTATCTGGTTG-3′
			CRY1-R	5′-CCGCTCGAGTTACCCGGTTTGTGAAAGC-3′
EMSA			YUC8-F	5′-CTCATCCTCTCCACGTGGCTTCCATTCCACGTCATCTTTTTCTTCCC-3′
			YUC8-R	5′-CGAGAGGAAGCCACGTGGGGAAGAAAAAGATGACGTGGAATGGAAGC-3′