Table 1 Descriptive statistics by breeding populations

Breeding Program	Abbreviation	Spike-Type	No. Markers	Sample Size	Average Pairwise Diversity	Mean F_IS	Private SNP
Spring barley			2392	2952	0.331		72
University of Idaho in Aberdeen	AB2	2	2103	239	0.266	0.983	3
University of Idaho in Aberdeen	AB6	6	1791	142	0.257	0.984	1
Busch Agricultural Resources, Inc.	BA2	2	2029	172	0.203	0.997	0
Busch Agricultural Resources, Inc.	BA6	6	1770	147	0.166	0.997	0
Busch Agricultural Resources, Inc.(International)	BAI2	2	1508	60	0.295	0.997	0
University of Minnesota	MN6	6	1650	386	0.148	0.989	0
Montana State University	MT2	2	2041	317	0.264	0.989	1
North Dakota State University Two-row	N2	2	2177	353	0.241	0.959	5
North Dakota State University Six-row	N6	6	1722	380	0.197	0.98	2
Washington State University	WA2	2	2032	351	0.248	0.971	1
Washington State University	WA6	6	1665	32	0.256	0.976	0
Winter barley			2336	661	0.291		16
Oregon State University	OR2	2	2052	73	0.293	0.960	0
Oregon State University	OR6	6	2272	268	0.274	0.968	11
Utah State University	UT2	2	1650	30	0.360	0.975	1
Utah State University	UT6	6	2283	343	0.303	0.970	6
Virginia Polytechnic Institute and State University	VT6	6	2025	320	0.246	0.985	2
Average			1972.1	401.4	0.258	0.980	6.7