Table 1.

Primer sets and targeted genes.

Targeted gene	Primer sets	References
Nucleocapsid (N)gene	FW: 5′-GGGAGCCTTGAATACACCAAAA-3′ RV: 5′-TGTAGCACGATTGCAGCATTG-3′	(Medema et al., 2020)
PMMoV	FW: 5′-GAGTGGTTTGACCTTAACGTTTGA-3′ RV: 5′-TTGTCGGTTGCAATGCAAGT-3′	(Ahmed et al., 2020a, Ahmed et al., 2020b)
BCoV	FW: 5′-TGGTGTCTATATTCATTTCTGCTG-3′ RV: 5′-GGCCACTGCCTAGGATACA-3′	(Christensen and Myrmel, 2018)