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Genetica. 2012 Mar;140(1-3):53-63. doi: 10.1007/s10709-012-9657-6. Epub 2012 May 22.

Genetic variability of arrhenotokous and thelytokous Venturia canescens (Hymenoptera).

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  • 1Evolutionary Genetics, Centre for Ecological and Evolutionary Studies, University of Groningen, PO Box 11103, 9700 CC, Groningen, The Netherlands.

Abstract

The ichneumonid wasp Venturia canescens (Hymenoptera) has been studied extensively for foraging behaviour and population dynamics of sexually (arrhenotokous) and parthenogenetically (thelytokous) reproducing individuals. Here we report the development of a set of microsatellite markers for V.canescens and use them to show that arrhenotokous individuals have more genetic variability than thelytokous ones, which are even homozygous for all tested loci. Crosses between arrhenotokous individuals suggested one marker, Vcan071, to be linked with the Complementary Sex Determiner (CSD) locus and one, Vcan109, with the Virus Like Protein (vlp-p40) locus. The genome size of V. canescens was estimated to be 274-279 Mb. We discuss how both reproductive modes can give rise to the observed genetic variability and how the new markers can be used for future genetic studies of V. canescens.

PMID:
22729870
[PubMed - indexed for MEDLINE]
PMCID:
PMC3386485
Free PMC Article
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