Table 1. Primer pairs used for identification and sequencing of vip3 gene in the Bt isolates.

	Primers	Sequencea (5’-3’)	Nucleotide position in the reference sequence	Amplicon size (bp)	References
Screening primers	vip3-sc(f)	TGCCACTGGTATCAARGA	-	-	[10]
	vip3-scII(r)	CCATTAATYGGAKTCAAAAATGTTTCACTGAT	78–1472	1395	[11]
Typing primers	vip3A-F1	ASTTTAAGATATGAGGYAACAGC	-	-	In this work
	vip3Aa-R1	CATCGTAAAAATGTACAATAGGA	1297–2356	1060	In this work
	vip3Af-R1	TCAAATGATATATGACCACCA	1297–2348	1052	In this work
	vip3Ag-R1	ATGTAAAACGAGAAAGCTCTACA	1297–2323	1027	In this work

^a Universal code for degenerate bases: R = A, G; Y = C, T; K = G,T; S = G, C.