Genotype-by-environment interaction in Holstein heifer fertility traits using single-step genomic reaction norm models

Table 6 Candidate genes and QTLs for the top genomic regions of two environmental gradients (EG)

EG^a	Trait^b	Parameter	Chromosome	Genes	Var%	#QTL	QTL traits
Prop-EG	AFC	slope	BTA14	CLVS1	2.30	1	Milk unglycosylated kappa-casein percentage
	CR	intercept	BTA14	CLVS1	2.29	3	Milk kappa-casein percentage
	CR	slope	BTA14	CLVS1	1.83	1	Milk kappa-casein percentage
	CR	intercept	BTA14	CLVS1	1.72	2	Milk kappa-casein percentage
	AFC	slope	BTA14	LOC112449637	1.49	1	Milk unglycosylated kappa-casein percentage
	CR	slope	BTA5	FKBP4, DDX11	1.20	3	Bovine tuberculosis susceptibility, Milk kappa-casein percentage
mTHI-EG	AFC	intercept	BTA14	CLVS1	2.27	1	Milk glycosylated kappa-casein percentage
	AFC	slope	BTA14	CLVS1	2.03	1	Milk unglycosylated kappa-casein percentage
	AFC	slope	BTA14	LOC112449637	1.80	1	Milk unglycosylated kappa-casein percentage
	CR	intercept	BTA14	CLVS1	1.39	3	Milk kappa-casein percentage
	CR	slope	BTA5	FKBP4, DDX11	1.35	2	Milk kappa-casein percentage
	CR	slope	BTA14	CLVS1	1.34	3	Milk kappa-casein percentage

^a prop-EG the number of days that exceeding the threshold temperature humidity index in the period, mTHI-EG Minimum temperature humidity index for each day of the period
^b AFC Age at first calving, IFL Interval from the first to last service, CR Conception rate of first service

ISSN: 1471-2164