Journal of Entomological Research

In the present study, wild type, locally collected Drosophila ananassae flies which exhibited certain abnormalities in the antennae at extremely low frequency were tested for transgenerational effect of Bisphenol A (BPA). Five generations were observed at BPA concentrations of 10, 15 and 20 mg/L. Results indicate that BPA could increase the type and number of abnormalities, generation after generation with increasing doses. Most of the abnormalities were observed on the terminal segment (funiculus) or in the aristae. Abnormalities such as miniature antennae, lack of aristae of both sides (bilateral absence of aristae) or unilateral aristae, incompletely developed aristae (bilateral or unilateral), absence of funiculus and abnormal melanization of scape or pedicel or of both segments, were observed during the study. A total of forty three phenotypic abnormalities in the antennae were observed following BPA treatments.