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Laboratory studies on the adaptation of the Mediterranean fruitfly after one year of rearing under artificial conditions

AuthorsMuñiz, Mariano
KeywordsCeratitis capitata
Issue Date1989
CitationIn: Fruit Flies of Economic Importance 87,585-588
AbstractA series of laboratory experiments at fixed environmental conditions has been carried out to estimate larval development and reproductive parameters of a field-collected strain (one year-old) and a very well adapted colony to the laboratory (20 year-old), of the Mediterranean fruit fly, Ceratitis capitata Wied. On the other hand, power-exponential functions have been fitted to the experimental data in order to study the variation of the fecundity rate along the female's life span. The preliminary results showed that larval growth, pupal yield and fecundity of females were statistically identical. So, it is possible to obtain a good fitness of newly field-collected adults, after a short period of rearing with our laboratory techniques. Ihe protein source (Hansenula anomala) and the oviposition devices have been the most important requirements for this success. Further research on the possible existence of reproductive barriers is being carried out. For this purpose, we use homogamic and reciprocal heterogamic crosses with "lab" and "field" individuals, as well as F2 crosses
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