Genomic prediction for root and yield traits of barley under a water availability gradient: a case study comparing different spatial adjustments

Table 3 Variance components and genetic parameter estimates for root traits

Trait	\({\widehat{\sigma }}_{g}^{2}\)	\({\widehat{\sigma }}_{l}^{2}\)	\({\widehat{\sigma }}_{r}^{2}\)	\({\widehat{\sigma }}_{s1}^{2}\)	\({\widehat{\sigma }}_{s2}^{2}\)	\({\widehat{\sigma }}_{s3}^{2}\)	\({\widehat{\sigma }}_{e}^{2}\)	Time 1		Time 2		Time 3		\(GCV\) (%)
Trait	\({\widehat{\sigma }}_{g}^{2}\)	\({\widehat{\sigma }}_{l}^{2}\)	\({\widehat{\sigma }}_{r}^{2}\)	\({\widehat{\sigma }}_{s1}^{2}\)	\({\widehat{\sigma }}_{s2}^{2}\)	\({\widehat{\sigma }}_{s3}^{2}\)	\({\widehat{\sigma }}_{e}^{2}\)	\({\widehat{h}}^{2}\)	\({\widehat{H}}^{2}\)	\({\widehat{h}}^{2}\)	\({\widehat{H}}^{2}\)	\({\widehat{h}}^{2}\)	\({\widehat{H}}^{2}\)	\(GCV\) (%)
TRL_RM1	10.13	2.6E−07	127.82	61.89	88.45	232.72	50.00	0.04	0.04	0.04	0.04	0.02	0.02	9.4
TRL_RM2	8.86	9.5E−07	193.46	95.16	53.37	238.64	60.82	0.03	0.03	0.03	0.03	0.02	0.02	8.8
SRL_RM1	4.02	6.5E−07	109.82	16.76	1.93	26.42	19.00	0.03	0.03	0.03	0.03	0.03	0.03	10.2
SRL_RM2	4.23	1.1E−07	110.64	29.55	2.15	66.19	19.67	0.03	0.03	0.03	0.03	0.02	0.02	10.4
DRL_RM1	0.69	4.2E−08	34.46	6.30	29.88	67.70	19.06	0.01	0.01	0.01	0.01	0.01	0.01	6.5
DRL_RM2	0.36	8.6E−08	40.25	1.70	44.11	159.85	24.07	0.005	0.005	0.003	0.003	0.002	0.002	4.7

TRL total root length, SRL shallow root length, DRL deep root length, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{g}}}^{2}\): estimated additive genomic variance, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{l}}}^{2}\): estimated line variance, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{r}}}^{2}\): estimated row variance, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{s}}1}^{2}\): estimated spatial variance for time-point 1, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{s}}2}^{2}\): estimated spatial variance for time-point 2, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{s}}3}^{2}\): estimated spatial variance for time-point 3, \({\widehat{{\varvec{\sigma}}}}_{{\varvec{e}}}^{2}\): estimated residual variance, \({{\varvec{h}}}^{2}\): narrow-sense heritability, \({{\varvec{H}}}^{2}\): broad-sense heritability, \({\varvec{G}}{\varvec{C}}{\varvec{V}}\): genetic coefficient of variation. Standard errors of variance estimates are presented in Additional file 5

ISSN: 1746-4811