Populations structure of the malaria vector Anopheles funestus in Senegal based on microsatellite and cytogenetic data

Autor: Ibrahima Dia, Anna Cohuet, Frédéric Simard, Michel Raymond, Didier Fontenille
Přispěvatelé: Laboratoire de Lutte contre des Insectes Nuisibles (LIN-IRD), Institut Recherche Développement, Institut Pasteur de Dakar, Réseau International des Instituts Pasteur (RIIP), Organisation de Coordination pour la lutte contre les Endémies en Afrique Centrale (OCEAC), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), This study was funded by the French ministry of research throughout the PAL + project. We thank F. Rousset for helpful comments.
Jazyk: angličtina
Rok vydání: 2004
Předmět:
Ecological selection
MESH: Geography
CHROMOSOME
[SDV]Life Sciences [q-bio]
MESH: Chromosomes/genetics
STRUCTURE DE POPULATION
Genome
Linkage Disequilibrium
0302 clinical medicine
Gene Frequency
MESH: Chromosome Inversion
INVERSION
MESH: Animals
MESH: Microsatellite Repeats/genetics
Genetics
0303 health sciences
Geography
MESH: Genetic Variation
Anopheles funestus
MESH: Genetics
Population
Incipient speciation
Senegal
3. Good health
MESH: Anopheles/genetics
MESH: Linkage Disequilibrium
MOUSTIQUE
Microsatellite
MICROSATELLITE
030231 tropical medicine
Biology
Chromosomes
03 medical and health sciences
MESH: Senegal
Genetic algorithm
Anopheles
parasitic diseases
medicine
MESH: Gene Frequency
Animals
Molecular Biology
030304 developmental biology
Isolation by distance
VECTEUR
Genetic Variation
PALUDISME
DIVERSITE GENETIQUE
medicine.disease
Genetics
Population
Insect Science
Chromosome Inversion
POLYMORPHISME GENETIQUE
Malaria
Microsatellite Repeats
Zdroj: Insect Molecular Biology
Insect Molecular Biology, Wiley, 2004, 13, pp.251-258. ⟨10.1111/j.0962-1075.2004.00482.x⟩
ISSN: 0962-1075
1365-2583
DOI: 10.1111/j.0962-1075.2004.00482.x⟩
Popis: The study of chromosomal inversions distribution within natural Anopheles funestus populations from West Africa revealed high levels of genetic structuring. In Burkina Faso, this was interpreted as evidence for incipient speciation, and two chromosomal forms were described, namely ‘Folonzo' and ‘Kiribina'. Assignation of field collected specimens to one chromosomal form depends upon application of an algorithm based on chromosomal inversions. We assessed relevance and applicability of this algorithm on An. funestus populations from Senegal, where both forms occur. Furthermore, we estimated the level of genetic differentiation between populations using microsatellite loci spread over the whole genome. Significant genetic differentiation was revealed between geographical populations of An. funestus , and the pattern observed suggested isolation by distance. Chromosomal heterogeneity was not detected by microsatellite markers. Thus, although incipient speciation could not be ruled out by our data, our results suggest that differential environmental selection pressure acting on inversions should be considered a major factor in shaping their distribution in wild An. funestus populations.
Databáze: OpenAIRE
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