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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Distribution of the Bari-I transposable element in stable hybrid strains between Drosophila melanogaster and Drosophila simulans and in Brazilian populations of these species

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Author(s):
Marcos de Lucca Jr. [1] ; Claudia Marcia Aparecida Carareto [2] ; Carlos Roberto Ceron [3]
Total Authors: 3
Affiliation:
[1] Universidade Estadual Paulista. Instituto de Biociências, Letras e Ciências Exatas. Departamento de Biologia - Brasil
[2] Universidade Estadual Paulista. Instituto de Biociências, Letras e Ciências Exatas. Departamento de Biologia - Brasil
[3] Universidade Estadual Paulista. Instituto de Biociências, Letras e Ciências Exatas. Departamento de Química e Ciências Ambientais - Brasil
Total Affiliations: 3
Document type: Journal article
Source: GENETICS AND MOLECULAR BIOLOGY; v. 30, n. 3, p. 676-680, 2007-00-00.
Abstract

We analyzed the distribution of the Bari-I transposable element in Drosophila melanogaster (IN(1)AB), its sibling species Drosophila simulans (C167.4) and in eight hybrid strains derived from initial crosses involving D. simulans females and D. melanogaster males of the above cited strains as well as in Brazilian populations of these species. Polymerase chain reaction (PCR) data showed the presence of the Bari-I element among species populations and hybrid strains. Hybridization with a 703 bp probe homologous to the Bari-I sequence showed that the number of Bari-I copies in D. melanogaster IN(1)AB was higher than in D. simulans C167.4 strains. Hybrid strains presented Bari-I sequences related to both parental species. In addition some strains displayed a Bari-I sequence that came from D. melanogaster, suggesting introgression of D. melanogaster genetic material in the background of D. simulans. In contrast, some hybrids showed deletions of D. simulans Bari-I sequences. (AU)