Sequential generations of honey bee (Apis mellifera) queens produced using cryopreserved semen
Brandon K. Hopkins A C , Charles Herr B and Walter S. Sheppard AA Washington State University, Department of Entomology, Pullman, WA 99164-6382, USA.
B Center for Animals Near Biological Extinction, 1016 S. Main Street, Colfax, WA 99111, USA.
C Corresponding author. Email: bhopkins@wsu.edu
Reproduction, Fertility and Development 24(8) 1079-1083 https://doi.org/10.1071/RD11088
Submitted: 9 April 2011 Accepted: 9 February 2012 Published: 10 April 2012
Abstract
Much of the world’s food production is dependent on honey bees for pollination, and expanding food production will further increase the demand for managed pollination services. Apiculturists outside the native range of the honey bee, in the Americas, Australia and eastern Asia, have used only a few of the 27 described subspecies of honey bees (Apis mellifera) for beekeeping purposes. Within the endemic ranges of a particular subspecies, hybridisation can threaten native subspecies when local beekeepers import and propagate non-native honey bees. For many threatened species, cryopreserved germplasm can provide a resource for the preservation of diversity and recovery of endangered populations. However, although instrumental insemination of queen honey bees is well established, the absence of an effective means to cryopreserve honey bee semen has limited the success of efforts to preserve genetic diversity within the species or to develop repositories of honey bee germplasm for breeding purposes. Herein we report that some queens inseminated with cryopreserved semen were capable of producing a substantial number of fertilised offspring. These diploid female larvae were used to produce two additional sequential generations of new queens, which were then back-crossed to the same stock of frozen semen. Our results demonstrate the ability to produce queens using cryopreserved honey bee spermatozoa and the potential for the establishment of a honey bee genetic repository.
Additional keywords: conservation, instrumental insemination.
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