Temporal and spatial distribution of phosphoglucomutase (PGM) polymorphism in natural populations ofDrosophila melanogaster |
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| Authors: | G Trippa R Scozzari A Loverre R Cicchetti |
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| Institution: | (1) Centro di Genetica Evoluzionistica de C.N.R. and Istituto di Genetica, Facoltà di Scienze, Università degli Studi di Roma, I-00185 Roma, (Italy) |
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| Abstract: | Summary
Drosophila melanogaster adults were collected for several years in various localities of Italy. The frequencies of thePgm electrophoretic alleles were determined and the similarity of the configuration of allelic frequencies observed. It was concluded that the PGM electrophoretic polymorphism could be maintained by random genetic drift in the natural populations studied only if the effective breeding size (N
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) during the bottle-neck period is about 5000.I am grateful to Prof. D. Sperlich and Prof. W. Seyffert for their kind hospitality during my sojourn as Research Fellow of the Alexander von Humboldt Foundation in the Institute of Biology II at the University of Tübingen (FRG) where the final version of this paper has been done. The technical assistance of Mr A. Micheli is also acknowledged. |
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