Figure 3

Frequency distribution of pairs of flea beetles with different larval survival rates on Barbarea and radish, respectively. All pairs consisted of an offspring from an intraline AE1 cross reared on radish, and an ST-beetle. (a) Line AE1 males × ST-females, bioassays on Barbarea; (b) line AE1 males × ST-females, bioassays on radish; (c) line AE1 females × ST-males, bioassays on Barbarea; (d) line AE1 females × ST-males, bioassays on radish.