Ana Carolina Martins Junqueira

Publications of Ana Carolina Martins Junqueira

• Molecular phylogeny of the Drosophila tripunctata and closely related species groups (Diptera: Drosophilidae).

  Authors: Luciane Mendes Hatadani, James O McInerney, Hermes Fonseca de Medeiros, Ana Carolina Martins Junqueira, Ana Maria de Azeredo-Espin, Louis Bernard Klaczko

  Molecular phylogenetics and evolution. 04/2009;

  We suggest a new phylogenetic hypothesis for the tripunctata radiation based on sequences of mitochondrial genes. Phylogenetic trees were reconstructed by parsimony, maximum likelihood and BayesianWe suggest a new phylogenetic hypothesis for the tripunctata radiation based on sequences of mitochondrial genes. Phylogenetic trees were reconstructed by parsimony, maximum likelihood and Bayesian methods. We performed tests for hypotheses of monophyly for taxonomic groups and other specific hypotheses. Results reject the monophyly for the tripunctata group whereas monophyly is not rejected for the tripunctata radiation and other specific groups within the radiation. Although most of the basal nodes were unresolved we were able to identify four clusters within the tripunctata radiation. These results suggest the collection of additional data before a proper taxonomic revision could be proposed.

• Structure and evolution of the mitochondrial genomes of Haematobia irritans and Stomoxys calcitrans: The Muscidae (Diptera: Calyptratae) perspective.

  Authors: Marcos Túlio Oliveira, Joan Grande Barau, Ana Carolina Martins Junqueira, Pedro Cipriano Feijão, Aline Coelho DA Rosa, Cristina Feix Abreu, Ana Maria L Azeredo-Espin, Ana Cláudia Lessinger

  Molecular phylogenetics and evolution. 06/2008;

  We present the first two mitochondrial genomes of Muscidae dipterans for the species Haematobia irritans (the horn fly) and Stomoxys calcitrans (the stable fly). Typical insect mtDNA features areWe present the first two mitochondrial genomes of Muscidae dipterans for the species Haematobia irritans (the horn fly) and Stomoxys calcitrans (the stable fly). Typical insect mtDNA features are described, such as a high A+T content (79.1% and 78.9%, respectively), the preference for A+T-rich codons, and the evidence of a non-optimal codon usage. The strong A+T enrichment partially masks another nucleotide content bias maintained by A+C mutation pressure in these Muscidae mtDNAs. The analysis of this data provides a model of metazoans tRNA anticodon evolution, based on the selection hypothesis of anticodon versatility. H. irritans mitochondrial genome (16078bp) is structurally similar to the hypothetical ancestral mitochondrial genome of arthropods and its control region (A+ T-rich region in insects) organization is consistent with the structure described for Brachycera dipterans. On the other hand, the mitochondrial genome of S. calcitrans is approximately 2kb longer (18kb), characterized by the presence of approximately 550bp tandem repeats in the control region, and an extra copy of trnI remarkably similar to a duplicated element of blowflies mtDNA. Putative sequence elements, involved in the regulation of transcription and replication of the mtDNA, were reliably identified in S. calcitrans control region despite the 0.8-1.5kb gap uncovered from this genome. The use of amino acid and nucleotide sequences of concatenated mitochondrial protein-coding genes (PCGs) in phylogenetic reconstructions of Diptera does not support the monophyly of Muscomorpha, as well as the monophyly of Acalyptratae. Within the Calyptratae group, the inclusion of Muscidae (Muscoidea) as a sister group of Calliphoridae (Oestroidea) implies in a potential conflict concerning the monophyly of the superfamily Oestroidea.

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• Molecular phylogeny of the Drosophila tripunctata and closely related species groups (Diptera: Drosophilidae)

  Authors: Luciane Mendes Hatadani, James O. McInerney, Hermes Fonseca de Medeiros, Ana Carolina Martins Junqueira, Ana Maria de Azeredo-Espin, Louis Bernard Klaczko

  Molecular Phylogenetics and Evolution.

  We suggest a new phylogenetic hypothesis for the tripunctata radiation based on sequences of mitochondrial genes. Phylogenetic trees were reconstructed by parsimony, maximum likelihood and BayesianWe suggest a new phylogenetic hypothesis for the tripunctata radiation based on sequences of mitochondrial genes. Phylogenetic trees were reconstructed by parsimony, maximum likelihood and Bayesian methods. We performed tests for hypotheses of monophyly for taxonomic groups and other specific hypotheses. Results reject the monophyly for the tripunctata group whereas monophyly is not rejected for the tripunctata radiation and other specific groups within the radiation. Although most of the basal nodes were unresolved we were able to identify four clusters within the tripunctata radiation. These results suggest the collection of additional data before a proper taxonomic revision could be proposed.

• Structure and evolution of the mitochondrial genomes of Haematobia irritans and Stomoxys calcitrans: The Muscidae (Diptera: Calyptratae) perspective

  Authors: Marcos Túlio Oliveira, Joan Grande Barau, Ana Carolina Martins Junqueira, Pedro Cipriano Feijão, Aline Coelho da Rosa, Cristina Feix Abreu, Ana Maria L. Azeredo-Espin, Ana Cláudia Lessinger

  Molecular Phylogenetics and Evolution.

  We present the first two mitochondrial genomes of Muscidae dipterans for the species Haematobia irritans (the horn fly) and Stomoxys calcitrans (the stable fly). Typical insect mtDNA features areWe present the first two mitochondrial genomes of Muscidae dipterans for the species Haematobia irritans (the horn fly) and Stomoxys calcitrans (the stable fly). Typical insect mtDNA features are described, such as a high A + T content (79.1% and 78.9%, respectively), the preference for A + T-rich codons, and the evidence of a non-optimal codon usage. The strong A + T enrichment partially masks another nucleotide content bias maintained by A + C mutation pressure in these Muscidae mtDNAs. The analysis of this data provides a model of metazoans tRNA anticodon evolution, based on the selection hypothesis of anticodon versatility. H. irritans mitochondrial genome (16078 bp) is structurally similar to the hypothetical ancestral mitochondrial genome of arthropods and its control region (A + T-rich region in insects) organization is consistent with the structure described for Brachycera dipterans. On the other hand, the mitochondrial genome of S. calcitrans is ∼2 kb longer (18 kb), characterized by the presence of ∼550 bp tandem repeats in the control region, and an extra copy of trnI remarkably similar to a duplicated element of blowflies mtDNA. Putative sequence elements, involved in the regulation of transcription and replication of the mtDNA, were reliably identified in S. calcitrans control region despite the 0.8–1.5 kb gap uncovered from this genome. The use of amino acid and nucleotide sequences of concatenated mitochondrial protein-coding genes (PCGs) in phylogenetic reconstructions of Diptera does not support the monophyly of Muscomorpha, as well as the monophyly of Acalyptratae. Within the Calyptratae group, the inclusion of Muscidae (Muscoidea) as a sister group of Calliphoridae (Oestroidea) implies in a potential conflict concerning the monophyly of the superfamily Oestroidea.