Signatures of selection reveal candidate genes involved in economic traits and cold acclimation in five Swedish cattle breeds

Table 1 Descriptive statistics for the studied Swedish cattle breeds

Breed	N samples	Type (distribution)	Characteristic	Citation
FNC	16	Native (north)	Smaller body size than the Fjäll breed; lower milk yield; said to be hardy and hold strong ability to find food in natural pastures	[16]
SMC	23	Native (north)	Small body size of cows about 400-450 kg; said to be hardy and hold strong ability to find food in natural pastures	[16]
SHF	24	Commercial (south)	The old Friesian type was more of a dual-purpose; the SHF is a commercial dairy breed with live weight of cows around 700 kg	[16]
SRC	25	Commercial (south middle to south)	A commercial dairy breed; live weight of cows 550–650 kg	[16]
SRP	18	Native (middle)	The focus is on conservation; said to be hardy; live weight of cows 350–600 kg	[16]

Breed: FNC (Fjällnära Cattle), SMC (Fjäll also known as Swedish Mountain Cattle), SHF (Swedish Holstein–Friesian), SRC (Swedish Red Cattle), SRP (Swedish Red Polled)
N samples: number of genotyped samples (i.e. before data quality control); note that according to data quality control, four samples (due to animal call-rate < 0.95) were removed, and principal component (PC) analyses, three samples (due to locating outside their expected breed cluster) were removed; resulting in 99 individuals for analyses of selection signatures

ISSN: 1297-9686