Figure 2.

Histochemical GUS activity in leaves and roots of transgenic soybean containing the individual promoter-GUS construct uninfected or infected with soybean cyst nematode (SCN, Heterodera glycines) at 8 and 12 days after inoculation (DAI). Arrows indicate localized GUS expression within the nematode-induced feeding sites. Three independent transgenic lines and six plants from each line were used for 4 × M1.1 and 4 × M2.3 promoter-GUS constructs. One transgenic line and six plants from the transgenic line were used for 35S and minimal (Min) 35S promoter-GUS constructs. A similar GUS expression was observed from each line.