. 2014 Mar 17;15:34. doi: 10.1186/1471-2156-15-34

Table 1.

Breeds, samples, genotypes (SNPs) and known genes in each group of cattle and sheep

Species	Trait	Groups	Breeds (n)^a	Animals (n)	Genome assembly	SNPs (n)^a	SNP density (kb)	Derived SNPs (n)	Known genes	Dataset code
Cattle	Polledness	Poll head	7	85	UMD3.1	38,290	65.50	38,177	POLL locus	A
	Polledness	Horn head	7	127	UMD3.1	38,290	65.50	38,177	POLL locus	A
	Double muscling	Double muscling	3	49	UMD3.1	38,520	65.15	38,407	MSTN	B
	Double muscling	Normal muscling	14	308	UMD3.1	38,520	65.15	38,407	MSTN	B
Sheep	Polledness	Poll head	37	1489	OARv1.0	47,498	51.26	-	RXFP2	C
	Polledness	Horn head	36	1290	OARv1.0	47,498	51.26	-	RXFP2	C
	Double muscling	Double muscling	3	149	OARv1.0	47,502	51.26	-	MSTN	D
	Double muscling	Normal muscling	71	2654	OARv1.0	47,502	51.26	-	MSTN	D
Cattle	Geographic location	African	7	226	UMD3.1	37,905	65.67	37,795	-	E
Cattle	Geographic location	European	46	847	UMD3.1	37,905	65.67	37,795	-	E

^aDetails of breeds and genotyping information about cattle and sheep is available in the (Additional files 1, 2 and 3: Table S1, S2 and S3, respectively).