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Home / Archives for Della Torre A

The “far-west” of Anopheles gambiae molecular forms.

  • Authors: Besansky NJ, Caputo B, Conway DJ, Della Torre A, Jaenson T, Jawara M, Mancini E, Nwakanma DC, Palsson K, Petrarca V, Santolamazza F, Vicente JL, White BJ
  • Journal: PLoS One
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=The+%E2%80%9Cfar-west%E2%80%9D+of+Anopheles+gambiae+molecular+forms

The main Afrotropical malaria vector, Anopheles gambiae sensu stricto, is undergoing a process of sympatric ecological diversification leading to at least two incipient species (the M and S molecular forms) showing heterogeneous levels of divergence across the genome.
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Geographic population structure of the African malaria vector Anopheles gambiae suggests a role for the forest-savannah biome transition as a barrier to gene flow

  • Authors: Caccone A, Charlwood JD, Della Torre A, Donnelly MJ, Egyir-Yawson A, Elissa N, Gomes B, Moreno M, Santolamazza F, Simard F, Vicente JL, Weetman D
  • Journal: Evolutionary Applications
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/24062800

The primary Afrotropical malaria mosquito vector Anopheles gambiae sensu stricto has a complex population structure. In west Africa, this species is split into two molecular forms and displays local and regional variation in chromosomal arrangements and behaviors.
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Comparative analyses reveal discrepancies among results of commonly used methods for Anopheles gambiaemolecular form identification.

  • Authors: Calzetta M, Caputo B, Della Torre A, Mancini E, Petrarca V, Pinto J, Santolamazza F, Vicente JL
  • Journal: Malaria Journal
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=Comparative+analyses+reveal+discrepancies+among+results+of+commonly+used+methods+for+Anopheles+gambiae+molecular+form+identification.

BACKGROUND:
Anopheles gambiae M and S molecular forms, the major malaria vectors in the Afro-tropical region, are ongoing a process of ecological diversification and adaptive lineage splitting, which is affecting malaria transmission and vector control strategies in West Africa. These two incipient species are defined on the basis of single nucleotide differences in the IGS and ITS regions of multicopy rDNA located on the X-chromosome.
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First report of an exophilic Anopheles arabiensis population in Bissau City, Guinea-Bissau: recent introduction or sampling bias?

  • Authors: Caputo B, Della Torre A, Dinis J, Gordicho V, Palsson K, Pinto J, Pombi M, Rodrigues A, Seixas G, Sousa CA, Vicente JL, Weetman D
  • Publication Year: 2014
  • Journal: Malaria Journal
  • Link: http://www.malariajournal.com/content/13/1/423

This study reports for the first time the presence of An. arabiensis in Antula, a suburb of Bissau city, the capital of Guinea Bissau, where high levels of hybridization between Anopheles coluzzii and An. gambiae have been reported. Given that previous surveys in the area, based on indoor collections, did not sample An. arabiensis, the possibility of a recently introduced exophilic population was investigated.
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Prominent intraspecific genetic divergence within Anopheles gambiae sibling species triggered by habitat discontinuities across a riverine landscape

  • Authors: Caputo B, Caputo FP, Conway DJ, Della Torre A, Dia I, Hamid-Adiamoh M, Jawara M, Konate L, Nwakanma D, Oriero EC, Petrarca V, Pinto J
  • Publication Year: 2014
  • Journal: Molecular Ecology
  • Link: http://onlinelibrary.wiley.com/doi/10.1111/mec.12866/abstract

The Anopheles gambiae complex of mosquitoes includes malaria vectors at different stages of speciation, whose study enables a better understanding of how adaptation to divergent environmental conditions leads to evolution of reproductive isolation. We investigated the population genetic structure of closely related sympatric taxa that have recently been proposed as separate species (An. coluzzii and An. gambiae), sampled from diverse habitats along the Gambia river in West Africa.
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About GHTM

GHTM is a R&D Unit that brings together researchers with a track record in Tropical Medicine and International & Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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