Materials and methods
2.1. Plant material
Seeds of transgenic (T) (variety MSOY 7575 RR) and nontransgenic
(NT) (variety MSOY 7501) soybeans were originally
obtained from Monsanto, Brazil and kindly donated by Prof. Siu
Mui Tsai (CENA/USP, Piracicaba, SP, Brazil). The Institute of
Chemistry (Unicamp, Brazil) has a Certificate of Quality in
Biosafety (number 240/2007, July 24, 2007) for handling the T
soybean material.