Table 5. Lowest amount of detection of each plant species by RT-qPCR assay based on AOX genes.

TCN: target copy number.

Target	Lowest amount	Cq	TCN
Maize	0.04 ng	32.1	55.4
Barley	0.04 ng	34.3	8.4
Soybean	0.04 ng	33.5	73.8
Wheat	0.2 ng	33.5	159.7
Flax	0.2 ng	34.9	28.7
Sunflower	0.04 ng	34.3	377.3
Peanut	0.4 ng	34.0	2003.1
Rice	0.04 ng	34.4	8.8
Cotton	0.04 ng	32.9	65.0