Table 1. Estimated heritability of QTSs detected for six branch traits.

Trait	$h_A^2$(%)	$h_D^2$(%)	$h_I^2$(%)	$h_{AE}^2$(%)	$h_{DE}^2$ (%)	$h_{IE}^2$(%)	$h_T^2$ (%)	$R_{\widehat{Y}}$
BFBNN	1.09	43.98	46.54	0.79	1.82	1.78	96.00	93.45
BFBL	24.27	25.38	0.00	12.09	11.96	0.00	73.70	89.80
MFBNN	7.87	40.49	0.00	2.33	19.14	0.00	69.83	87.37
MFBL	21.02	41.31	11.18	1.95	7.98	0.00	83.44	72.48
UFBNN	14.93	47.36	0.00	4.38	0.71	0.00	67.38	63.83
UFBL	13.18	19.46	0.00	8.08	13.28	0.00	54.00	52.85

$h_A^2$ = heritability of additive effects, $h_D^2$ = heritability of dominance effects, $h_I^2$ = heritability of epistasis effects including AA, AD, DA, DD, $h_{AE}^2$ = heritability of environment-specific additive interaction effects, $h_{DE}^2$ = heritability of environment-specific dominance effects, $h_{IE}^2$ = heritability of environment-specific epistasis effects including AAE, ADE, DAE, DDE, $h_T^2$ = total heritability. $R_{\widehat{Y}}$ = correlation coefficient between predicted values and phenotypic values.