Consulta: subjectFacets:"Drosophila buzzatii cluster"
Registros recuperados: 2
Data/hora: 16/06/2024 10:35:06

Molecular characterization of SSS139, a new satellite DNA family in sibling species of the Drosophila buzzatii cluster
Provedor de dados: 74
Autores: Franco,Fernando F.; Sene,Fabio M.; Manfrin,Maura H.
We characterized sequences of a novel SSS139 RsaI satellite DNA family in Drosophila gouveai and Drosophila seriema, two members of the Drosophila buzzatii cluster (D. repleta group). The sequences were AT-rich (69%) with a monomer unit length of about 139 bp and contained two direct subrepeats of 14 bp and 16 bp, suggesting that it might have originated by the duplication of smaller sequences. Southern and dot-blot hybridization analyses also detected SSS139 in other Drosophila buzzatii cluster species (D. koepferae, D. antonietae, D. borborema and D. serido) but not in D. buzzatii. These results agree with the marginal phylogenetic position of D. buzzatii within the D. buzzatii cluster.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Drosophila buzzatii cluster; Molecular evolution; Repetitive DNA; Satellite DNA; SSS139 satellite DNA.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100026

Aedeagus morphology as a discriminant marker in two closely related Cactophilic species of Drosophila (Diptera; Drosophilidae) in South America
Provedor de dados: 42
Autores: Franco,Fernando F.; Prado,Pedro R.R.; Sene,Fábio M.; Costa,Luciano F.; Manfrin,Maura H.
Drosophila serido and D. antonietae are sibling species belonging to the Drosophila buzzatii cluster. Morphologically, they can only be discriminated by quantitative traits. In this paper we analyze the length and equalized average curvature of four regions of the aedeagus of D. antonietae and D. serido. Specimens of D. serido and D. antonietae were classified correctly 96.74% of the time. Based only on the variable that most contributed to the discrimination of the groups (equalized average curvature of the arch IV of the aedeagus), we observed significant intraspecific morphological divergence in D. serido in relation to the D. antonietae, in agreement with other markers. The high morphological divergence in equalized average curvature of the arch IV of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphometric; Curvature; Drosophila buzzatii cluster; Aedeagus.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000200002