Table 1. Nodulins with reduced expression in root hairs of inoculated M. truncatula nin with close L. japonicus homologs identified using ChIP-seq for LjNIN (Soyano et al., 2014).

ChIP data are from Soyano et al. (2014). CaOMT, Caffeic acid O-methytransferase; MIP, major intrinsic protein; na, no gene name yet assigned; PP2C, protein phosphatase2C; TF, transcription factor.

M. truncatula Gene Model	L. japonicus Gene Model	Gene Name	Description	Fold Change (nin/Wild Type)	Fold Enrichment (ChIP)
Medtr1g056530	chr5.CM0571.340.r2.m	NF-YA1	CCAAT-box TF	0.01	68.02
Medtr5g011950	chr2.CM0021.2380.r2.m	na	Lipid transfer protein	0.02	25.82
Medtr3g012420	chr3.CM0005.520.r2.m	N21	MtN21 transporter	0.03	11.49
Medtr6g007160	chr2.CM0081.540.r2.d	N24	Transmembrane protein	0.07	20.17
Medtr3g079850	chr6.CM0041.530.r2.a	SymCRK	Cys-rich RK-like protein	0.09	14.03
Medtr6g086170	chr2.CM0610.70.r2.m	SST1	Sulfate transporter	0.09	14.33
Medtr7g114870	LjSGA_056148.1	na	IQ calmodulin protein	0.10	17.89
Medtr8g098815	chr4.CM0004.760.r2.d	na	BEL1-related protein	0.12	18.97
Medtr3g074610	chr4.CM0182.350.r2.m	na	PP2C	0.13	2.87
Medtr2g055940	chr1.LjT11G20.60.r2.d	na	CaOMT	0.16	11.27
Medtr8g087710	chr4.CM0046.1620.r2.m	Nod26	MIP family transporter	0.17	30.91
Medtr1g090807	chr5.CM0909.840.r2.a	RPG	Myosin-like protein	0.17	8.51
Medtr1g018790	chr4.CM0536.30.r2.m	na	F-box SKIP2-like protein	0.17	13.00
Medtr5g026850	chr2.CM0803.150.r2.m	IPD3L	CYCLOPS protein	0.19	26.80
Medtr6g081810	LjSGA_016193.1	na	MATE efflux family protein	0.19	12.33
Medtr1g085680	chr1.CM0017.80.r2.m	na	Cytochrome P450	0.22	11.07
Medtr5g014640	chr2.CM0021.390.r2.m	na	Basic helix-loop-helix TF	0.24	3.67
Medtr4g079610	CM0446.165.r2.a	CLE13	Clavata3/ESR peptide	0.25	31.35
Medtr8g069775	chr4.CM0161.180.r2.d	NRT2.7	High-affinity NO3 transporter	0.30	17.25