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Polytene chromosomes and phylogenetic relationships in ten Drosophila species of the annulimana group (Diptera, Drosophilidae) Genet. Mol. Biol.
Tosi,Deborah; Pereira,Maria Augusta Q.R.; Vilela,Carlos R..
Polytene chromosomes banding patterns of ten of the 16 species of the Neotropical annulimana group of Drosophila were used to propose phylogenetic relationships among species. Drosophila annulimana chromosomes were used as the standard sequence and the most parsimonious series of changes (paracentric inversions) were considered. In some cases, intermediate hypothetical rearrangements were proposed to explain the sequences present in a given species. A total of 47 paracentric inversions were detected, most of them (44.7%) in chromosome 4. Three subgroups, partially coincident with those previously proposed based on morphological and karyotypical analyses, were classified as: 1) annulimana subgroup (Drosophila annulimana, D. aracataca, D. aragua, and D....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome phylogeny; Drosophilinae; Imagos; Neotropical Region; Paracentric inversions.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600023
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Chromosomal phylogeny of the Drosophila fasciola species subgroup revisited (Diptera, Drosophilidae) Genet. Mol. Biol.
Diniz,Nilda Maria; Sene,Fabio Melo.
The analysis of polytene chromosomes in 26 strains of seven species in the Drosophila fasciola subgroup, from several locations in Brazil, in addition to strains of two species belonging to the Drosophila mulleri subgroup (D. aldrichi and D. mulleri), enabled us to determine that the 3c inversion found in the latter species differ in one of its break points from that present in the species of the fasciola subgroup. Therefore, a change in the mulleri complex denomination from inversion 3c to inversion 3u is proposed. Accordingly, the fasciola subgroup is no longer a lesser phylogenetic part within the mulleri subgroup. Rather, it is directly related to the likely ancestor of the repleta group, called Primitive I. This information removes the main obstacle...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drosophila; Chromosome phylogeny; Repleta group; Fasciola subgroup; Chromosome inversions.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000400016
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