Abstract
Wild-caught flies of Drosophila melanogaster from seven natural populations of extreme regions of Brazil (São Luís, MA; Teresina, PI; Rio Cipó, MG; Maringá, PR; São José do Rio Preto, SP; Joinville, SC; and Porto Alegre, RS) were studied with the purpose of evaluating hybrid dysgenesis due to mobilization of P elements and the regulatory capacity of the strains' cytotypes. Diagnostic crosses were made and the strains classified according to their P–M phenotypes. Four strains were classified as moderate P (MA, MG, PI, and SP), two as Q (PR and RS) and one as M′ (SC). Females of southern strains (PR, SC, and RS) presented in A crosses lower degrees of gonadal dysgenesis scores than those from northern strains (MA and PI).
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Vetorazzi, V.C.R., Lourenço, M.F. & Carareto, C.M.A. The distribution of the P–M hybrid dysgenesis system in Drosophila melanogaster strains from Brazil. Genetica 105, 273–279 (1999). https://doi.org/10.1023/A:1003831320657
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DOI: https://doi.org/10.1023/A:1003831320657