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Home / Archives for Vicente JL

Massive introgression drives species radiation at the range limit of Anopheles gambiae

  • Authors: Antao T, Bottà G, Caputo B, Clarkson CS, Dinis J, Donnelly MJ, Drury E, Gomes B, Kwiatkowski DP, Mancini E, Mead D, Miles A, Petrarca V, Pinto J, Pombi M, Rodrigues A, Sousa CA, Stalker J, Torre AD, Vicente JL, Weetman D
  • Publication Year: 2017
  • Journal: Scientific Reports
  • Link: https://www.nature.com/articles/srep46451

Impacts of introgressive hybridisation may range from genomic erosion and species collapse to rapid adaptation and speciation but opportunities to study these dynamics are rare. We investigated the extent, causes and consequences of a hybrid zone between Anopheles coluzzii and Anopheles gambiae in Guinea-Bissau, where high hybridisation rates appear to be stable at least since […]
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Insecticide resistance is mediated by multiple mechanisms in recently introduced Aedes aegypti from Madeira Island (Portugal)

  • Authors: Grigoraki L, Pinto J, Seixas G, Silva AC, Sousa CA, Vicente JL, Vontas J, Weetman D
  • Publication Year: 2017
  • Journal: Plos Neglected Tropical Diseases
  • Link: http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0005799

BACKGROUND: Aedes aegypti is a major mosquito vector of arboviruses, including dengue, chikungunya and Zika. In 2005, Ae. aegypti was identified for the first time in Madeira Island. Despite an initial insecticide-based vector control program, the species expanded throughout the Southern coast of the island, suggesting the presence of insecticide resistance. Here, we characterized the […]
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Genetic diversity and population structure of Plasmodium falciparum over space and time in an African archipelago

  • Authors: Figueiredo RC, Pinto J, Salgueiro P, Vicente JL
  • Publication Year: 2016
  • Journal: Infection Genetics and Evolution
  • Link: https://www.sciencedirect.com/science/article/pii/S1567134816302258?via%3Dihub

The archipelago of São Tomé and Principe (STP), West Africa, has suffered the heavy burden of malaria since the 16th century. Until the last decade, when after a successful control program STP has become a low transmission country and one of the few nations with decreases of more than 90% in malaria admission and death […]
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The last bastion? X chromosome genotyping of Anopheles gambiae species pair males from a hybrid zone reveals complex recombination within the major candidate ‘genomic island of speciation’

  • Authors: Caputo B, Della Torre A, Dinis J, Mancini E, Petrarca V, Pichler V, Pinto J, Pombi M, Rodrigues A, Steen K, Vicente JL, Weetman D
  • Publication Year: 2016
  • Journal: Molecular Ecology
  • Link: http://onlinelibrary.wiley.com/doi/10.1111/mec.13840/pdf

Speciation with gene flow may be aided by reduced recombination helping to build linkage between genes involved in the early stages of reproductive isolation. Reduced recombination on chromosome X has been implicated in speciation within the Anopheles gambiae complex, species of which represent the major Afrotropical malaria vectors. The most recently diverged, morphologically indistinguishable, species […]
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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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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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