We investigated the historical demography of Anopheles albimanus using mosquitoes from five countries and three different DNA regions, the mitochondrial cytochrome oxidase subunit I gene (COI), the single copy nuclear white gene and the ribosomal internal transcribed spacer two (ITS2). All the molecular markers supported the taxonomic status of a single species of An. albimanus. Furthermore, agreement between the COI and the white genes suggested a scenario of Pleistocene geographic fragmentation (i.e., population contraction) and subsequent range expansion across southern Central America.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3229172PMC
http://dx.doi.org/10.1016/j.ympev.2010.09.016DOI Listing

Publication Analysis

Top Keywords

anopheles albimanus
8
late pleistocene
4
pleistocene environmental
4
environmental changes
4
changes lead
4
lead unstable
4
unstable demography
4
demography population
4
population divergence
4
divergence anopheles
4

Similar Publications

Malaria Vectors and Transmission in Malaria-Endemic Localities of Colombia.

Trop Med Infect Dis

November 2024

Grupo Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Calle 70 No. 52-21, Medellín 050010, Colombia.

species composition, abundance, and natural infection are important aspects to assess malaria transmission risk. In this study, these aspects were evaluated in a large number of localities in the most important malaria-endemic regions of Colombia. Mosquitoes were collected from 2012 to 2015 in 55 localities of northwestern and western Colombia.

View Article and Find Full Text PDF

Mechanism of complement inhibition by a mosquito protein revealed through cryo-EM.

Commun Biol

May 2024

NIH-NIAID, Laboratory of Malaria and Vector Research, Rockville, MD, USA.

Salivary complement inhibitors occur in many of the blood feeding arthropod species responsible for transmission of pathogens. During feeding, these inhibitors prevent the production of proinflammatory anaphylatoxins, which may interfere with feeding, and limit formation of the membrane attack complex which could damage arthropod gut tissues. Salivary inhibitors are, in many cases, novel proteins which may be pharmaceutically useful or display unusual mechanisms that could be exploited pharmaceutically.

View Article and Find Full Text PDF

Insecticide susceptibility status of Anopheles albimanus populations in historical malaria foci in Quintana Roo, Mexico.

Malar J

May 2024

Unidad Colaborativa de Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, Yucatán, Mexico.

Article Synopsis
  • Mexico has significantly reduced malaria cases over the last 20 years and is considering certifying malaria-free areas (MFAs) as a step towards total elimination, with Quintana Roo being a potential candidate.
  • Monitoring the susceptibility of key malaria vectors like Anopheles albimanus is essential for this MFA certification, leading to a study conducted in three localities in Quintana Roo during the rainy season of 2022.
  • The study found that An. albimanus showed high mortality rates against various insecticides, and genetic analysis revealed no mutations in key resistance genes, indicating that the vector population remains susceptible.
View Article and Find Full Text PDF

Chemical control of medically important arthropods in Panama: A systematic literature review of historical efforts.

Acta Trop

July 2024

Programa Centroamericano de Maestría en Entomología, Vicerrectoría de Investigación y Postgrado, Universidad de Panamá, República de Panamá; Smithsonian Tropical Research Institute, Panama City, Panama; Instituto de Investigaciones Científicas & Servicios de Alta Tecnología, Edificio 219, Clayton, PO 0843-01103, Ciudad del Saber, República de Panamá. Electronic address:

Vector-borne diseases are a major source of morbidity in Panama. Herein, we describe historical usage patterns of synthetic insecticides to control arthropod disease vectors in this country. We examine the influence of interventions by vector control programs on the emergence of insecticide resistance.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!