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Genetic structure of Balearic honeybee populations based on microsatellite polymorphism

  • Pilar De la RúaEmail author
  • José Galián
  • José Serrano
  • Robin FA Moritz
Open Access
Research

Abstract

The genetic variation of honeybee colonies collected in 22 localities on the Balearic Islands (Spain) was analysed using eight polymorphic microsatellite loci. Previous studies have demonstrated that these colonies belong either to the African or west European evolutionary lineages. These populations display low variability estimated from both the number of alleles and heterozygosity values, as expected for the honeybee island populations. Although genetic differentiation within the islands is low, significant heterozygote deficiency is present, indicating a subpopulation genetic structure. According to the genetic differentiation test, the honeybee populations of the Balearic Islands cluster into two groups: Gimnesias (Mallorca and Menorca) and Pitiusas (Ibiza and Formentera), which agrees with the biogeography postulated for this archipelago. The phylogenetic analysis suggests an Iberian origin of the Balearic honeybees, thus confirming the postulated evolutionary scenario for Apis mellifera in the Mediterranean basin. The microsatellite data from Formentera, Ibiza and Menorca show that ancestral populations are threatened by queen importations, indicating that adequate conservation measures should be developed for protecting Balearic bees.

Keywords

honeybee microsatellites population structure genetic diversity Balearic Islands 

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Copyright information

© INRA, EDP Sciences 2003

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Authors and Affiliations

  • Pilar De la Rúa
    • 1
    Email author
  • José Galián
    • 1
  • José Serrano
    • 1
  • Robin FA Moritz
    • 2
  1. 1.Departamento de Biología Animal, Facultad de Veterinaria, Apdo. 4021Universidad de MurciaMurciaSpain
  2. 2.Institute of ZoologyMartin-Luther-University Halle-WittenbergHalle/SaaleGermany

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