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ALLOZYME VARIATION IN HALICTUS RUBICUNDUS (CHRIST): A PRIMITIVELY SOCIAL HALICTINE BEE (HYMENOPTERA: HALICTIDAE)

Published online by Cambridge University Press:  31 May 2012

Laurence Packer
Affiliation:
Department of Biology, York University, 4700 Keele St., Downsview, Ontario, Canada M3J 1P3
Robin E. Owen
Affiliation:
Department of Biological Sciences, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4

Abstract

Halictus rubicundus (Christ) is a primitively eusocial halictine bee. Studies of electrophoretic variation at 48 loci for 37 enzymes with an average of 38 bees per locus provided an expected heterozygosity of 0.038 ± 0.018 for a population from Vancouver, B.C. This value is well within the range found for other primitively eusocial bees and wasps. Comparisons of allozyme mobilities made among samples from France, Alberta, and Vancouver indicated that there are some genetic differences, with the French sample appearing particularly distinct. The loci Diaph, G3pdh-1, and 6Pgd-1 had variants with both alleles at high frequency within the Vancouver population. These loci could provide good estimates of the average relatedness between nest mates.

Résumé

Halictus rubicundus (Christ) est une abeille halictine primitivement eusociale. L’étude de la variation électrophorétique observée à 48 loci et pour 37 enzymes avec en moyenne 38 abeilles par locus a révélé un niveau d’hétérozygosité de 0,038 ± 0,018 dans une population de Vancouver. Cette valeur est bien en déça des limites observées chez d’autres abeilles et guêpes eusociales. La comparaison de la mobilité isozymatique entre des échantillons de France, d’Alberta et de Vancouver indique qu’il existe des différences génétiques, l’échantillon de France se distinquant de façon particulière. Les loci Diaph, G3pdh-1, et 6Pgd-1 avaient des variantes, les deux allèles montrant des fréquences élevées dans la population de Vancouver. Ces loci pourraient permettre d’estimer la parenté entre cohabitants d’un même nid.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1989

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