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Whole-genome resequencing of honeybee drones to detect genomic selection in a population managed for royal jelly

Abstract : Four main evolutionary lineages of A. mellifera have been described including eastern Europe (C) and western and northern Europe (M). Many apiculturists prefer bees from the C lineage due to their docility and high productivity. In France, the routine importation of bees from the C lineage has resulted in the widespread admixture of bees from the M lineage. The haplodiploid nature of the honeybee Apis mellifera, and its small genome size, permits affordable and extensive genomics studies. As a pilot study of a larger project to characterise French honeybee populations, we sequenced 60 drones sampled from two commercial populations managed for the production of honey and royal jelly. Results indicate a C lineage origin, whilst mitochondrial analysis suggests two drones originated from the O lineage. Analysis of heterozygous SNPs identified potential copy number variants near to genes encoding odorant binding proteins and several cytochrome P450 genes. Signatures of selection were detected using the hapFLK haplotype-based method, revealing several regions under putative selection for royal jelly production. The framework developed during this study will be applied to a broader sampling regime, allowing the genetic diversity of French honeybees to be characterised in detail.
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David Wragg, Maria Marti-Marimon, Benjamin Basso, Jean Pierre Bidanel, Emmanuelle Labarthe, et al.. Whole-genome resequencing of honeybee drones to detect genomic selection in a population managed for royal jelly. Scientific Reports, Nature Publishing Group, 2016, 6, pp.1-13. ⟨10.1038/srep27168⟩. ⟨hal-02641643⟩

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