The patterns of genomic variances and covariances across genome for milk production traits between Chinese and Nordic Holstein populations

Table 1 Total estimated genomic variance (Va), covariance (Cov), correlation (Corr) with standard error (SE) in parentheses, heritability (h²), and DIC for Chinese (CN) and Nordic (NO) Holstein population in different scenarios

Method	Group^a	Trait^b	Va_CN	Va_NO	Cov	Corr	h²_CN^c	h²_NO^c	DIC^d
MT-GBLUP	All SNP	MY	358160.4 (25519.1)	112.3(4.1)	4116.0(289.4)	0.649(0.037)	0.41	0.86	NA
		FY	469.8(33.0)	104.6(3.8)	134.7(10.1)	0.607(0.038)	0.42	0.86	NA
		PY	309.0(22.3)	107.1(3.9)	98.2(8.5)	0.540(0.042)	0.40	0.86	NA
MT-rrBLUP	All SNP	MY	349985.3(27058.4)	108.2(3.8)	3825.6(271.7)	0.622(0.034)	0.40	0.84	125746.4
		FY	462.2(34.4)	102.2(3.8)	126.5(11.5)	0.582(0.044)	0.42	0.85	83081.2
		PY	302.1(21.5)	104.4(3.6)	93.6(8.5)	0.527(0.043)	0.39	0.84	81589.5
	BTA	MY	346995.3(27762.0)	104.7(5.0)	3550.9(306.1)	0.589(0.042)	0.40	0.84	125726.5
		FY	418.2(36.6)	95.2(5.1)	112.0(12.0)	0.562(0.048)	0.39	0.83	83255.6
		PY	289.5(20.8)	101.6(4.4)	90.8(8.1)	0.529(0.040)	0.38	0.83	81554.3
	100 SNPs	MY	279770.6(23729.6)	85.4(3.7)	2856.8(281.3)	0.585(0.044)	0.35	0.81	125667.4
		FY	331.4(26.9)	74.5(4.1)	82.2(7.3)	0.523(0.037)	0.34	0.80	83143.4
		PY	272.5(18.1)	86.6(4.1)	85.9(8.0)	0.559(0.044)	0.36	0.81	81570.8

^a All SNP the whole genome, BTA, each chromosome as one genome region, 100 SNPs every 100 SNP as one genome region
^b MY Milk Yield, FY, Fat Yield, PY Protein Yield
^c h ² represented the reliability of DRP
^d DIC Deviance Information Criterion

ISSN: 2730-6844