Table 2. Description of trait simulation in the Miscanthus sinensis (Msi) and Miscanthus sacchariflorus (Msa) diversity panels and simulated 50 F2 populations that were used to perform genomic selection.

Scenario	Description	QTNa Effect	Model + QTN #b	H2 Panelc	H2 F2
1	The same QTNs in Msi and Msa	Random uniform between 0 and 1 (Same effects in both Msi and Msa)	A20D0E0, A20D4E0, A20D0E4	0.60	0.37
2	Half of the QTNs similar and half different between Msi and Msa	Random uniform between 0 and 1 (Same effects in both Msi and Msa)	A20D0E0, A20D4E0, A20D0E4	0.60	0.37
3	Completely different QTNs used in Msi and Msa	Random uniform between 0 and 1 (Same effects in both Msi and Msa)	A20D0E0, A20D4E0, A20D0E4	0.60	0.37
4	Different QTNs with Large Effects in Msi	QTN from Msi with large effects (random uniform between 0.5 and 0.99) and Msa with small effects (random uniform between 0 and 0.25)	A20D0E0, A20D4E0, A20D0E4	0.60	0.37
5	Different QTNs with Large Effects in Msa	QTN from Msa with large effects (random uniform between 0.5 and 0.99) and Msi with small effects (random uniform between 0 and 0.25)	A20D0E0, A20D4E0, A20D0E4	0.60	0.37

^aQTN, Quantitative trait nucleotide.

^bA, D, and E respectively refer to additive, dominance, and additive-by-additive epistatic QTNs. The number after each letter refers to the number of QTNs with that genetic mechanism simulated. For example A20D0E0 means that 20 additive QTN were simulated, 0 dominance QTN were simulated, and 0 epistatic QTN were simulated.

^cH², broad-sense heritability.