Gonadal hybrid dysgenesis in Drosophila sturtevanti (Diptera, Drosophilidae)
Loading...
External sources
External sources
Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Fundação Zoobotânica do Rio Grande do Sul
Type
Article
Access right
Acesso aberto
External sources
External sources
Abstract
The occurrence of hybrid dysgenesis was investigated in Drosophila sturtevanti Duda, 1927 using diagnostic crosses similar to those used for induction of dysgenics traits in D. melanogaster. Reciprocal test crosses were made, at 27° C, between an old laboratory strain of D. sturtevanti (COL, from Colombia), assumed to be an M'-like strain, and eight freshly collected strains from several natural populations. The gonadal dysgenesis indices were under 10% in most of crosses, except in hybrids of COL with I27, a strain from Minas Gerais (Brazil), in which the index values were moderate in both directions of crosses (25.71 and 12.87). The smallest productivity was also observed in hybrids of females COL mated to I27 males. No causal relationship between the observed gonadal dysgenesis and mobilization of P element or another transposable element could be effectively established.
Description
Keywords
Hybrid sterility, P element, I element, hobo element, Transposable element
Language
English
Citation
Iheringia. Série Zoologia. Fundação Zoobotânica do Rio Grande do Sul, v. 92, n. 2, p. 71-79, 2002.
