Table 1

Hypotheses for the main effects of several factors on larval time, pupal time, larval growth rate, pupal mass, chill-coma recovery time, and longevity
Traits Factors
Selection regime Inbreeding Rearing temperature Sex Adult temperature Feeding regime
Larval time No No 20°C > 27°C Females > Males - -
Pupal time No No 20°C > 27°C Males > Females - -
Growth rate No No 27°C > 20°C Males > Females - -
Pupal mass No No 20°C > 27°C Females > Males - -
Chill-coma recovery time Controls > Selected Lines No 27°C > 20°C No 27°C > 20°C No
Longevity No No 20°C > 27°C Females > Males 20°C > 27°C Control > Starvation

The hypotheses stated rest on prior results mainly obtained from B. anynana. Selection for increased cold tolerance is expected to have no effect on any trait other than chill-coma recovery time, as no correlated responses to selection were found in a previous study [34]. No inbreeding effects are expected here due to random mating for 14 generations after full-sib matings and thus prior to scoring trait values. Hypotheses regarding temperature, sex and feeding effects are all straight-forward and rest on previous results [e.g. [5,17,20,23,34,36,37]. ‘-‘: Not tested.

Franke et al.

Franke et al. BMC Evolutionary Biology 2012 12:235   doi:10.1186/1471-2148-12-235

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