Biomics

The consequences of starvation (limited access to food) during the maturation of the reproductive system of the adults were studied using a model object – two strains of houseflies with contrasting lifespan (LS) indices. Virgin individuals, separated by sex, were fed for 30 minutes throughout the day for 8 days. During this time, females ate half of the daily food ration, and males ate a third. The weight of the adults at the end of the starvation period did not differ from the weight of individuals in the control groups. Then, crosses were carried out in 4 variants: 1) control females and males; 2) control females and starved males; 3) starved females and control males; 4) starved females and males. In the parent generation, life span and the number of laid egg clutches were recorded, and in the offspring, in addition to this, the body weight of individuals and the concentration of hemolymph protein were determined at all stages of ontogenesis. A negative effect of starvation on the indices of metabolic processes at the larval and puparium stages has been established. A decrease in the fertility of the offspring is shown, which resulted  in a significant reduction in reproduction in all variants of crossing with starved individuals. The role of maternaland paternal contributions to the manifestation of transgenerational effects of starvation is discussed. 

housefly, Musca domestica L., starvation, stress, reproduction

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