Table 1. Description of experimental data sets.

	Species
	Ricea	Wheatb	Arabidopsisc
No. observations n	413	254	199
No. SNPs p	36,901	2,056	215,908
No. chromosomes	12	21	5
Average distance of neighboring SNPs	10.1 kb	NAd	0.55 kb
Average minor allele frequency	0.26	0.20	0.24
Average r2 of neighboring SNPs	0.39	NAd	0.26
Traits analyzed (acronym)	Days to heading in Aberdeen (flowering time)	Yield	Flowering time in the field (flowering time)
	Plant height	Thousand-kernel weight	Plant diameter at flowering (plant diameter)
	Panicle length	Days to heading	FRIGIDA (FRI) gene expression
	Length of seed with hull (seed length)		Plant diameter grown at 10° (plant width)

^aData sets previously described in Zhao et al. (2011).

^bData sets previously described in Poland et al. (2012).

^cData sets previously described in Atwell et al. (2010).

^dMarker positions not available.