Fig. 4

Mortality in temperature sensitive lethal (SS), wild type (NS) and two hybrid strains after heat exposure at 41°C for 3 hours. Each dot represents a single isofemale family. MNS × FSS: males of wild type strain crossed with females of temperature sensitive lethal strain, MSS × FNS: temperature sensitive lethal males crossed with wild type females. A total of 1560 larvae (52 isofemale families) for SS, 1560 (52 isofemale families) for NS, 840 (28 isofemale families) for MNS × FSS and 750 (25 isofemale families) for MSS × FNS were tested. *P < 0.05, **P < 0.01, ***P < 0.001, ns: not statistically different. Comparisons were done two by two