Table 2. Predictive ability (PA) of GBLUP and RKHS statistical models obtained with 28,091 SNPs selected based on linkage disequilibrium (LD), and based on association with target trait detected by genome wide association study (GWAS).
Environment & size of the population | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
280 accessions | 204 accessions | |||||||||
E1 | E1 | E2 | E3 | |||||||
LD | GWAS | LD | GWAS | LD | GWAS | LD | GWAS | |||
GBLUP | DTF | PA | 0.540 b | 0.618 a | 0.599 b | 0.653 a | 0.450 b | 0.519 a | 0.579 b | 0.635 a |
STD | 0.084 | 0.067 | 0.082 | 0.071 | 0.129 | 0.108 | 0.098 | 0.097 | ||
GY | PA | 0.389 b | 0.489 a | 0.345 b | 0.398 b | 0.420 b | 0.476 b | 0.672 b | 0.682 a | |
STD | 0.09 | 0.061 | 0.115 | 0.124 | 0.12 | 0.162 | 0.122 | 0.133 | ||
PH | PA | 0.505 b | 0.623 a | 0.558 b | 0.595 a | 0.648 b | 0.679 b | 0.673 b | 0.703 a | |
STD | 0.087 | 0.086 | 0.085 | 0.046 | 0.087 | 0.049 | 0.073 | 0.057 | ||
RKHS | DTF | PA | 0.539 b | 0.633 a | 0.585 b | 0.662 a | 0.466 b | 0.553 a | 0.554 b | 0.628 a |
STD | 0.081 | 0.062 | 0.09 | 0.071 | 0.114 | 0.110 | 0.098 | 0.089 | ||
GY | PA | 0.387 b | 0.490 a | 0.352 b | 0.391 b | 0.435 b | 0.479 b | 0.668 b | 0.695 b | |
STD | 0.089 | 0.054 | 0.106 | 0.127 | 0.113 | 0.683 | 0.149 | 0.132 | ||
PH | PA | 0.501 b | 0.625 a | 0.547 b | 0.595a | 0.646 b | 0.683 a | 0.675 b | 0.711 a | |
STD | 0.09 | 0.088 | 0.084 | 0.046 | 0.078 | 0.051 | 0.075 | 0.060 |
DTF: days to flowering; GY: grain yield PH: plant height (PH); E1: lowland non-stress environment; E2: lowland stressed; E3: upland stressed. AP of GWAS-derived markers predictions that are followed by different letters than their LD-derived counterpart are significantly different at α <0.05.