Genetic effects of polymorphisms in candidate genes and the QTL region on chicken age at first egg

BMC Genomic Data

Table 3 Association of the SNPs in the candidate genes with chicken AFE

No.	Candidate gene	Sites¹	Genotype	N²	AFE³	P value
M1	GnRH-I	G840327C	CC	26	135.1 ± 3.2^A	0.0002**
			GC	208	121.2 ± 1.1^B
			GG	972	123.6 ± 0.5^B
M2	NPY	C31394761T	CC	392	121.5 ± 0.8^a	0.0143*
			TC	600	124.1 ± 0.7^b
			TT	214	125.0 ± 1.1^b
M3	DRD2	T5841629C	CC	1060	123.2 ± 0.5^a	0.0390*
			TC	217	126.2 ± 1.1^b
			TT	5	119.2 ± 7.4^ab
M4	VIP	G51389822T	GG	74	123.6 ± 1.9	0.3271
			GT	400	124.4 ± 0.8
			TT	732	122.8 ± 0.6
M5	VIPR-1	A1661691G	GG	1028	123.9 ± 0.5^a	0.0390*
			GA	95	121.4 ± 1.7^ab
			AA	83	119.7 ± 1.8^b
M6	VIPR-1	C1704887T	CC	1128	123.2 ± 0.5	0.2022
			TC	72	125.7 ± 2.0
			TT	6	132.0 ± 6.7
M7	VIPR-1	C1715301T	CC	842	123.9 ± 0.6	0.2648
			TC	252	122.1 ± 1.0
			TT	112	122.6 ± 1.6
M8	PRL	I59724210D	II	10	126.2 ± 5.2	0.1851
			ID	187	121.4 ± 1.2
			DD	1009	123.7 ± 0.5

¹The sites were referred to the chicken genome sequences released in May, 2006 http://genome.ucsc.edu/cgi-bin/hgGateway;
²N indicated the number of tested chickens of each genotype;
³AFE = age at first egg, the values are least-square means ± standard errors (SE).
^a,bWithin a column, for each site, measurements with no common superscripts are significantly different in single marker analysis, but not significantly different after Bonferroni correction (0.0042 < P < 0.05);
^A,BWithin a column, for each site, measurements with no common superscripts are great significantly different (P < 0.00083); * and ** indicate 0.0042 < P < 0.05 and P < 0.00083, respectively.

ISSN: 2730-6844