Table 2. Size-related QTL identified in two families (CC5 and CC10) of bay scallop.

Trait	QTL name	LG	Position (cM)	Confidence interval (cM)#	Nearest marker	LOD	PVE(%)	Phenotype means				Significance
								f1m1	f2m1	f1m2	f2m2
CC5
SL	qSL-7	7	6.8	4.0–8.2	AiDD154	2.9†	15.3	35.4	34.9	38.8	37.5	***
SH	qSH-7	7	2.5	4.0–7.0	AiEM002	3.1‡	15.8	34.9	37.7	34.9	37.7	****
SW	qSW-10	10	5.0	0–10.1	AiAD121	3.6‡	20.5	15.5	17.0	15.5	17.0	****
TW	qTW-5	5	45.8	43.3–47.6	N391	2.7†	9.8	38.0	39.7	35.2	36.1	**
	qTW-10	10	7.4	0–13.3	AiAD121	4.2‡	27.7	8.2	8.2	10.7	10.7	****
CC10
SL	qSL-13	13	55.3	52.5–57.3	AIMS003	2.8†	10.2	35.9	35.9	38.8	38.8	***
SH	qSH-10	10	27.6	25.3–30.6	AIMS013	2.7†	9.5	34.9	34.7	36.9	36.8	**
TW	qTW-6	6	32.4	31.5–33.4	AiAD079	2.6†	8.9	8.4	8.6	8.9	10.8
	qTW-13	13	53.1	52.1–53.9	Asd013	2.6†	9.6	8.5	8.5	10.0	10.0	*

SL, shell length; SH, shell height; TW, total weight; PVE, percentage of phenotypic variance explained by the QTL; association between four parental genotypes (f1m1, f2m1, f1m2, f2m2) of markers nearest each QTL peak and mean phenotypic values of each trait was tested by Kruskal-Wallis analysis.

^#Confidence interval at 95% significance;

^†linkage-group-wide;

^‡genome wide;

*P<0.1, **P<0.05, *** P<0.01, ****P<0.005, ***** P<0.001.