Nitrogen-metabolism related genes in barley - haplotype diversity, linkage mapping and associations with malting and kernel quality parameters

Table 2 Marker-trait associations in a set of 190 barley cultivars based on three statistical models

			GLM - PCA		MLM - Q5 + K		GLM - Q5
Fragment	SNP-/ID-marker	Trait	P	Sign.	P	Sign.	P	Sign.
Nitrate Reduktase 1 (NAR)
GB015-25	SNP3	Raw protein in malt [%]	0,0025	**	0.005	**	0.005	**
	SNP5	Raw protein in malt [%]	0,0025	**	0.005	**	0.005	**
	SNP11	Raw protein in malt [%]	0,002	**
	SNP12	Raw protein in malt [%]	0,0054	**
	SNP13	Raw protein in malt [%]	0,0053	**
	SNP3	Soluble N [mg/100g_MTrS]	0,0126	**
	SNP5	Soluble N [mg/100g_MTrS]	0,0126	**
	SNP7	Fermentable Extract [%]	0,0067	**
	SNP8	Fermentable Extract [%]	0,0067	**
	SNP4	pH in malt					0.001	***
	SNP11	pH in malt					0.008	**
	SNP12	pH in malt					0.009	**
	SNP13	pH in malt					0.009	**
Ferredoxin-dependent Glutamate Synthase (GOGAT)
GB005	SNP1	Marketable Yield [dt/ha]	0,0079	**	0.009	**	0.007	**
	SNP2	Marketable Yield [dt/ha]	0,0086	**	0.010	**	0.009	**
	SNP3	Marketable Yield [dt/ha]	0,0086	**	0.010	**	0.009	**
	SNP4	Marketable Yield [dt/ha]	0,0079	**	0.009	**	0.007	**
	SNP5	Marketable Yield [dt/ha]	0,0079	**	0.009	**	0.007	**
	SNP2	Final attenuation [%]			0.005	**	0.005	**
	SNP3	Final attenuation [%]			0.005	**	0.005	**
	SNP1	Viscosity [mPas]			0.000	***
	SNP2	Viscosity [mPas]			0.000	***
Aspartate Aminotransferase (AAT)
GB056	SNP2	Fermentable Extract [%]			0.001	***	0.001	***
	SNP3	Fermentable Extract [%]	0,0041	**	0.002	**	0.003	**
	SNP2	Friability [%]			0.006	**	0.002	**
	SNP3	Malting quality index			0.014	**	0.011	**
	SNP3	pH in malt			0.006	**	0.002	**
	SNP4	pH in malt					0.007	**
Asparaginase (ASP)
GB033	SNP1	Kernel formation [1–9]	0,0011	***
	SNP1	Glume Fineness [1–9]	0,00043812	***
	SNP1	pH in malt	0,00033973	***			0.005	**

GLM – PCA = General linear model considering Eigenvalues; MLM – Q5 + K = Mixed linear model considering population structure + kinship; GLM-Q5 = General linear model considering population structure assuming five groups. * P ≤ 0.05; **P ≤ 0.01; ***P ≤ 0.001.

ISSN: 2730-6844