Genetic characterization of the honeybee (Apis mellifera) population of Rodrigues Island, based on microsatellite and mitochondrial DNA

Techer Maéva Angélique, Clémencet Johanna, Turpin Patrick, Volbert Nicolas, Reynaud Bernard, Delatte Hélène. 2015. Genetic characterization of the honeybee (Apis mellifera) population of Rodrigues Island, based on microsatellite and mitochondrial DNA. Apidologie, 46 (4) : 445-454.

https://doi.org/10.1007/s13592-014-0335-9

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Quartile : Q2, Sujet : ENTOMOLOGY

Résumé : Apis mellifera is present in Rodrigues, an island in the South-West Indian Ocean. The history of the established honeybee population is poorly known, and its biodiversity has never been studied. In this study, maternal origins of A. mellifera in Rodrigues have been assessed with the DraI test and sequencing of the mitochondrial COI-COII region. Nuclear genetic diversity was investigated with 18 microsatellite markers. A total of 524 colonies were sampled from 16 beekeepers in 20 sites. The Rodrigues population was characterized by the absence of the African lineage and presence of three European haplotypes from the C lineage. C1 haplotype was the most frequent (81.3 %), followed by C2 (18.0 %) (characteristics of A. m. ligustica and carnica, respectively) and a new haplotype, C1-Rod (0.7 %). No genetic structure was detected, and genetic diversity was comparable to continental populations. According to approximate Bayesian computation (ABC) analyses, bottleneck scenarios are most likely to have occurred.

Mots-clés Agrovoc : Apis mellifera, variation génétique, génétique des populations, biologie moléculaire, conservation de la diversité biologique, marqueur génétique, microsatellite

Mots-clés géographiques Agrovoc : Maurice

Mots-clés complémentaires : Apis mellifera unicolor

Classification Agris : L60 - Taxonomie et géographie animales
L10 - Génétique et amélioration des animaux
U30 - Méthodes de recherche

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

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