Thelytokous parthenogenesis in unmated queen honeybees (Apis mellifera capensis) : central fusion and high recombination rates

Oldroyd, Benjamin P; Allsopp, Michael H; Gloag, Rosalyn S; Lim, Julianne; Jordan, Alex; Beekman, Madeleine

Thelytokous parthenogenesis in unmated queen honeybees (Apis mellifera capensis) : central fusion and high recombination rates

Dateien

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Datum

2008

Autor:innen

Oldroyd, Benjamin P

Allsopp, Michael H

Gloag, Rosalyn S

Lim, Julianne

Jordan, Alex

Beekman, Madeleine

DOI (zitierfähiger Link)

https://doi.org/10.1534/genetics.108.090415

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Genetics. 2008, 180(1), pp. 359-366. ISSN 0016-6731. eISSN 1943-2631. Available under: doi: 10.1534/genetics.108.090415

Zusammenfassung

The subspecies of honeybee indigenous to the Cape region of South Africa, Apis mellifera capensis, is unique because a high proportion of unmated workers can lay eggs that develop into females via thelytokous parthenogenesis involving central fusion of meiotic products. This ability allows pseudoclonal lineages of workers to establish, which are presently widespread as reproductive parasites within the honeybee populations of South Africa. Successful long-term propagation of a parthenogen requires the maintenance of heterozygosity at the sex locus, which in honeybees must be heterozygous for the expression of female traits. Thus, in successful lineages of parasitic workers, recombination events are reduced by an order of magnitude relative to meiosis in queens of other honeybee subspecies. Here we show that in unmated A. m. capensis queens treated to induce oviposition, no such reduction in recombination occurs, indicating that thelytoky and reduced recombination are not controlled by the same gene. Our virgin queens were able to lay both arrhenotokous male-producing haploid eggs and thelytokous female-producing diploid eggs at the same time, with evidence that they have some voluntary control over which kind of egg was laid. If so, they are able to influence the kind of second-division meiosis that occurs in their eggs post partum.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Zitieren

ISO 690

OLDROYD, Benjamin P, Michael H ALLSOPP, Rosalyn S GLOAG, Julianne LIM, Alex JORDAN, Madeleine BEEKMAN, 2008. Thelytokous parthenogenesis in unmated queen honeybees (Apis mellifera capensis) : central fusion and high recombination rates. In: Genetics. 2008, 180(1), pp. 359-366. ISSN 0016-6731. eISSN 1943-2631. Available under: doi: 10.1534/genetics.108.090415

BibTex

@article{Oldroyd2008-09Thely-40593,
  year={2008},
  doi={10.1534/genetics.108.090415},
  title={Thelytokous parthenogenesis in unmated queen honeybees (Apis mellifera capensis) : central fusion and high recombination rates},
  number={1},
  volume={180},
  issn={0016-6731},
  journal={Genetics},
  pages={359--366},
  author={Oldroyd, Benjamin P and Allsopp, Michael H and Gloag, Rosalyn S and Lim, Julianne and Jordan, Alex and Beekman, Madeleine}
}

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