Quantitative trait loci associated with different polar metabolites in perennial ryegrass - providing scope for breeding towards increasing certain polar metabolites

Table 6 Identification of quantitative trait loci (QTL) polar components by mapping using SNP and DArT data in the full population (N = 325), with simulation of missing genotype data

Trait	Group	Pos. (cM)	Marker	LOD	μ_A	μ_H	μ_B	% Expl.	Add	se_Add	Dom	se_Dom	One-lod interval
L-leucine	LG 1	8.0	s16737r0011889_11077	4.56	0.004	0.004	0.002	6.57	0.29	0.071	0.19	0.102	6–12
2,3-dihydroxypropanoic acid	LG 1	4.6	s893r0038731_60419	3.91	0.011	0.009	0.008	4.49	0.14	0.036	0.03	0.051	0–9
	LG 2	126.9	s7455r0038980_4917	4.53	0.010	0.010	0.007	6.48	0.09	0.035	0.21	0.052	120–127
	LG 4	125.9	s1679r0036123_7554	3.51	0.008	0.009	0.011	5.05	−0.15	0.036	−0.02	0.063	108–128
Myo-inositol	LG 1	36.9	s697r0011191_46705	3.37	0.037	0.034	0.030	4.55	0.08	0.028	0.11	0.041	23–60
	LG 2	65.6	s13073r0029219_7352	8.85	0.047	0.032	0.030	12.05	0.17	0.031	−0.17	0.041	65–75
Fructose	LG 3	57.3	s15405r0015202_5350	7.91	0.119	0.135	0.178	11.82	−0.21	0.035	−0.06	0.049	55–66
	LG 7	36.1	rv1411	3.98	0.163	0.139	0.125	6.42	0.14	0.035	−0.12	0.048	29–48
Glucose	LG 7	36.1	rv1411	4.47	0.245	0.207	0.174	6.48	0.15	0.035	−0.09	0.049	31–48
L-serine	LG 3	71.6	s13354r0039793_22015	3.53	0.035	0.024	0.021	5.16	0.15	0.037	−0.05	0.053	37–91
Citric acid	LG 7	72.8	s15061r0016601_15890	3.39	0.014	0.012	0.008	5.49	0.30	0.080	0.14	0.112	38–95

For each trait the linkage group, position on genetic map and nearest genetic marker on genetic map, LOD scores, means of the three genotype classes (μ_A, μ_H and μ_B), percentage of variation explained and additive and dominance effects with standard errors have been given. The additive and dominance effects and standard errors come from the analysis of the log-transformed data, but the genotype means have been back-transformed to the natural scale

ISSN: 2730-6844