Primers Lec1 (GTG CTA CTG ACC
AGC AAG GCA AAC TCA GCG) / Lec2 (GAG
GGT TTT GGG GTG CCG TTT TCG TCA AC)
were used to amplify lectin gene in soy samples with
amplicon size of 164 bp (Vollenhofer et al., 1999);whereas for maize samples, two primers pairs were
used. Inv-F (CCG CTG TAT CAC AAG GGC TGG
TAC C) / Inv-R (GGA GCC CGT GTA GAG CAT
GAC GAT C) was used to screen for invertase gene
with amplicon size of 226 bp (Ehlers et al., 1997);
while Ze03 (AGT GCG ACC CAT ATT CCA G) /
Ze04 (GAC ATT GTG GCA TCA TCA TTT) was
used to screen for zein gene with amplicon size of
277bp (Pauli et al., 2000)