Genetics, structure, and prevalence of FP967 (CDC Triffid) T-DNA in flax

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Table 3 Summary of results for in-house and commercial testing of CDC flax breeder seed

Variety	Year sampled	# samples	# indep. in-house 5.7 g assays	Positive in-house assays	# indep. commercial 60 g subsamples	Positive commercial assays
CDC Arras	2009	1	3	2	5	-
	2010	2	8	0	8	-
CDC Bethune	2009	3	9	0	15	-
CDC Gold	2009	1	3	0	1	-
CDC Mons	2009	1	3	0	2	+
	2010	5	16	trace	36	+
CDC Normandy	2009	1	3	0	2	+
	2010	5	14	3	36	+
CDC Sanctuary	2009	2	6	0	9	-
CDC Sorrel	2009	2	6	0	9	-
CDC Valour	2009	1	3	0	1	-
Flanders	2009	1	3	1	4	-
Somme	2009	1	3	0	4	-
Vimy	2009	1	3	0	1	-

A number of seed samples of CDC varieties were sampled in 2009 and 2010. These samples were tested at a small scale (5.7 g) in-house using the construct- and event-specific assays. Commercial laboratories using the construct-specific assay also tested these same samples. The commercial assay consisted of either a single or four independent 60 g subsamples. Results from the commercial tests were reported as either positive/negative for the subsamples as a whole, or positive/negative/trace for each subsample. As some four-subsample tests were reported as positive or negative, it is not possible to report the number of positive assays. The single positive in-house assay for CDC Mons was very weak and is reported as trace.