Mapping quantitative trait loci (QTL) in sheep. IV. Analysis of lactation persistency and extended lactation traits in sheep

Table 4 Results of the two-QTL analysis using QTL Express

OAR	Trait	Position (cM)		Flanking marker		F-value		SD (SE)
		QTL A	QTL B	QTL A	QTL B	2vs0	2vs1	QTL A	QTL B
10	Extended lactation somatic cells	12	84	MNS64-OARHH41	TGLA441-OARDB3	8.36*	6.49*	0.61 (0.18)	-0.52 (0.21)
10	Extended lactation useful yield	13	62	MNS64-OARHH41	ILSTS056-TGLA441	6.06*	6.92*	0.56 (0.20)	-0.52 (0.20)

Shown are the peak position of QTL A and QTL B; flanking markers of both peaks; F-value and significant threshold (*chromosome-wide P < 0.05) reached under 2 vs 0 QTL (F-statistic for testing two QTL vs no QTL on chromosome), or 2 vs 1 QTL (F-statistic for testing two QTL vs one QTL on chromosome); standardised QTL effect (SD) and standard error (SE).

ISSN: 1297-9686