Table 2. Known function of genes under selection in sheep¹⁾

Trait class	Trait	Gene
Growth and development	Body weight	GHR, MB, LEPR, GHRHR, CAST
	Average daily gain	LEPR
	Shin circumference	MB
	Curd firmness	FAS, LALBA
Reproduction	Litter size	FSHR, GHR, MB
	Age at first lambing	MB
	Teat number	MB
	Interval between first and second lambing	MB
	Age at puberty	LEPR
	Testes weight	TGFB1
Carcass and meat quality	Backfat at 12th/13th ribs	GHR, GHRHR, CAST
	Backfat at third lumbar	MB
	Carcass length	GHR
	Hot carcass weight	GHR
	Lumbar vertebra number	MB
	Lumbar weight	MB
	Subcutaneous fat thickness	MB
	Muscle depth at third lumbar	MB, ACACA
	Tail fat deposition	MB
	Abdominal fat weight	GHR
	Longissimus muscle area	SCD5
Milk	Yield	MB
	Curd firming time	FAS, LALBA
	Composition	GHR, MB, GHRHR, FAS, ITGB1, IGF1, ACACA, TGFB1, STAT5A
Fiber quality	Greasy fleece weight	MB
	Mean fiber diameter	MB, FST
	Fiber diameter coefficient of variance	MB, FST
	Fiber diameter standard deviation	MB, FST
	Wool crimp	FST
	Staple length	TGFB1
Health	Haemonchus contortus resistance	MB
	Fecal egg count	MB
	Maedi-Visna virus susceptibility	MB, TMEM154
	Pneumonia susceptibility	MB, KCNMA1, IL6
	Facial eczema susceptibility	MB
	Scrapie susceptibility	MB

This table is based on the information searched in Animal QTLdb (accessed April 22, 2020) database.
GHR, growth hormone receptor; MB, myoglobin; LEP, leptin receptor; GHRHR, growth hormone releasing hormone receptor; CAST, calpastatin; FAS, Fas cell surface death receptor; LALBA, lactalbumin alpha; FSHR, follicle stimulating hormone receptor; TGFB1, transforming growth factor beta 1; ACACA, acetyl-CoA carboxylase alpha; SCD5, stearoyl-CoA desaturase 5; ITGB1, integrin subunit beta 1; IGF1, insulin like growth factor 1; STAT5A, signal transducer and activator of transcription 5A; FST, follistatin; KCNMA1, potassium calcium-activated channel subfamily M alpha 1; IL6, interleukin 6.