Fig. 2
From: Everybody loves sugar: first report of plant feeding in triatomines
DNA analysis of 1st instar R. prolixus nymphs exposed to tomato ad libitum. a Image shows negative controls (1–4) and insects (5–8) collected after 24, 48, 72 and 96 h respectively of exposure to tomatoes. Lane 9 is a PCR negative control and lane 10 is a positive control using tomato-extracted DNA. b DNA analysis of 1st instar R. prolixus nymphs with cut proboscis tip exposed to tomato ad libitum. Image shows regular 1st instar R. prolixus nymphs (lane 2) and insects which proboscis was cut before exposure to tomato (lane 3). All insects were collected after 24 h of exposure. Lane 4 is a PCR positive control using tomato DNA and lane 1 is DNA molecular weight marker (100 bp ladder)