Table I. Overview of the considered genetic material and experiments.

ABL, Advanced backcrossed lines; BCxSy, backcross population of x generations of backcross followed by y generations of selfing; P1 and P2, CIMMYT lines Ac7643 and Ac7729/TZSRW.

Name of Population	Parents	Background	Type of Population	Size of Populationa	Tested Environmental Conditionsb	No. Exp.c	Data Origin
Mapping populations
D	F2 × Io	European Flint × Iodent	RIL	110	VPD, Ψ	5	Reymond et al. (2003, 2004); new data
E	F2 × F252	European Flint × U.S. Dent	RIL	98	VPD, Ψ	5	New data
P	P1 × P2	Tropical	RIL	200	VPD, Ψ	6	Welcker et al. (2007); new data
Introgression lines
NILG	Gaspé × B73	Northern Flint × U.S. Dent	BC5S4	18	VPD, Ψ	4	New data
NILF,D	eDent × eFlint	Elite Dent × Elite Flint	BC4S4	16	VPD, Ψ	4	New data
NILD	eDent × eFlint	Elite Dent × Elite Flint	BC5S3, short introgressions	23	VPD	1	New data
ABLT	CML444 × F252	Tropical × U.S. Dent	Pools of BC2S5	4 × 10	VPD, Ψ	4	New data

^aNumber of lines considered in this work.

^bEnvironmental conditions in experiments. Ψ, Soil water potential.

^cNumber of independent experiments. Plants were transferred between the growth chamber and the greenhouse; therefore, each experiment comprises two experimental conditions.