Table 1.

Summary of growth, expression, and physiology experiments conducted

	Experiment type	Genotypes	Number of plants of each genotype	Tissue	Age of plant during treatment	Evaluation methods	Parameters measured	Stage Figure or Table
1	Growth 1	Alba, Quncho, Tsedey	18	Roots, shoots	From 4 to 28 days	Measure shoot length in pots	Shoot length	Early stage Figure S1
2	Growth 2	Quncho, Tsedey	66	Roots, shoots	From 4 to 28 days	Harvest 4 controls and 4 waterlogged at 2, 4, 7, 9, 11, 16, and 24 days after treatment	Root and shoot length, dry weight, cross section	Early stage Figures 1 and S6 Tables 2, S1, S2
3	Root growth 1	Alba, Quncho, Tsedey	2	Roots	From 4 to 22 days	Visualization with rhizotron	Root growth	Early stage Figure S2
4	Root growth 2	Wheat, maize, Alba, Tsedey	2	Roots, shoots	From 7 to 35 days	Visualization with rhizotron	Root growth	Early stage Figures S3 (wheat) and S4 (maize)
5	Physiology	Tsedey		Shoots	From 19 to 28 days	Porometer SPAD	Chlorophyll a and b, carotenoid, stomatal conductance	Tillering stage Figure 2
6	Cross sections	Alba, Quncho, Tsedey	21	Roots	From 19 to 28 days	Count adventitious roots, cross sections	Number of adventitious roots Aerenchyma size	Tillering stage Figures 3, 4 and S5 Table S3
7	qPCR	Alba, Quncho, Tsedey		Shoots	From 19 to 28 days	Microscopy, qPCR	Differential gene expression	Tillering stage Figure 5 Table S6
8	RNA‐Seq	Tsedey		Shoots	From 19 to 28 days	RNA‐Seq	Differential gene expression	Tillering stage Figures S7, S8, S9, S10, S11, and S12 Tables 3, 4, 5, S4, and S5