Summary
The temperate race (D) ofS. peregrina undergoes pupal diapause in response to certain environmental conditions of photoperiod (13L:11D–11L:13D) and temperature (under 20°C). The tropical race (ND) does not do so under the same circumstances. The tendency toward diapause was suppressed in 30–40% of the hybrids of crossings D♀×ND♂ and ND♀×D♂ even under such short day and low temperature conditions as 11L:13D–9L:15D, 20°C. For entering diapause, the hybrids require a shorter day length (13L:11D) than that of (D) parents (15L:9D).
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We thank Dr R. Kano and Dr S. Shinonaga, Tokyo Medical and Dental University, for supplying the New Guinean material.
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Kurahashi, H., Ohtaki, T. Crossing between nondiapausing and diapausing races of Sarcophaga peregrina. Experientia 33, 186–187 (1977). https://doi.org/10.1007/BF02124056
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DOI: https://doi.org/10.1007/BF02124056