Complementary sex determination in the parasitoid wasp Cotesia vestalis (C. plutellae)

J. G. De Boer, P. J. Ode, L. E.M. Vet, J. Whitfield, George E Heimpel

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In the Hymenoptera, single locus complementary sex determination (sl-CSD) describes a system where males develop either from unfertilized haploid eggs or from fertilized diploid eggs that are homozygous at a single polymorphic sex locus. Diploid males are often inviable or sterile, and are produced more frequently under inbreeding. Within families where sl-CSD has been demonstrated, we predict that sl-CSD should be more likely in species with solitary development than in species where siblings develop gregariously (and likely inbreed). We examine this prediction in the parasitoid wasp genus Cotesia, which contains both solitary and gregarious species. Previous studies have shown that sl-CSD is absent in two gregarious species of Cotesia, but present in one gregarious species. Here, we demonstrate CSD in the solitary Cotesia vestalis, using microsatellite markers. Diploid sons are produced by inbred, but not outbred, females. However, frequencies of diploid males were lower than expected under sl-CSD, suggesting that CSD in C. vestalis involves more than one locus.

Original languageEnglish (US)
Pages (from-to)340-348
Number of pages9
JournalJournal of Evolutionary Biology
Volume20
Issue number1
DOIs
StatePublished - Jan 1 2007

Fingerprint

Cotesia plutellae
Cotesia
sex determination
wasp
parasitoid
loci
gender
diploidy
egg
inbreeding
sibling species
parasitic wasps
haploidy
Hymenoptera
prediction
microsatellite repeats

Keywords

  • Developmental mortality
  • Diamondback moth
  • Diploid males
  • Inbreeding
  • Mating system
  • Sex ratio

Cite this

Complementary sex determination in the parasitoid wasp Cotesia vestalis (C. plutellae). / De Boer, J. G.; Ode, P. J.; Vet, L. E.M.; Whitfield, J.; Heimpel, George E.

In: Journal of Evolutionary Biology, Vol. 20, No. 1, 01.01.2007, p. 340-348.

Research output: Contribution to journalArticle

De Boer, J. G. ; Ode, P. J. ; Vet, L. E.M. ; Whitfield, J. ; Heimpel, George E. / Complementary sex determination in the parasitoid wasp Cotesia vestalis (C. plutellae). In: Journal of Evolutionary Biology. 2007 ; Vol. 20, No. 1. pp. 340-348.
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