- Telephone:+31 20 59 83808
- Room nr:h-134
- Unit:faculteit der aard- en levenswetenschappen ( subafdeling dierecologie )
I have a broad-ranging interest in evolutionary biology and have worked on topics such as sexual selection, sexual conflict and speciation. Recently, I have concentrated on the evolutionary consequences of Wolbachia-induced parthenogenesis in insects. After cataloguing phenotypic effects and population genetic signatures, I have now begun to investigate the effects on the genome of the host.
Working at the Leiden Genome Technology Center, I have developed an interest in the application of next-generation sequencing technology in the study of evolutionary questions. This technology is rapidly changing biological and medical research, a fact that I think the general public should be aware of. I contribute to this effort through the activities of the LeveDNA! Foundation.
A female Leptopilina clavipes attacking a Drosophila larva. Northern populations of this wasp are infected with Wolbachia and reproduce clonally.
Kraaijeveld K, Zwanenburg B, Hubert B, Vieira C, de Pater S, van Alphen JJM, den Dunnen JT & de Knijff P 2012 Transposon proliferation in an asexual wasp. Molecular Ecology 21: 3898-3906.
Reumer BM, van Alphen JJM, Kraaijeveld K 2012 Occasional males in parthenogenetic populations of Asobara japonica (Hymenoptera: Braconidae): low Wolbachia titer or incomplete co-adaptation? Heredity 108: 341-346.
Kraaijeveld K, Franco P, de Knijff P, Stouthamer R & van Alphen JJM 2011 Clonal genetic variation in a Wolbachia-infected asexual wasp: horizontal transmission or historical sex? Molecular Ecology 20: 3644-3652.
Askari Seyahooei M, van Alphen JJM & Kraaijeveld K 2011 Metabolic rate affects adult life span independently of developmental rate in parasitoid wasps. Biological Journal of the Linnean Society 103: 45-56.
Kraaijeveld K, Reumer BM, Mouton M, Kremer N, Vavre F & van Alphen JJM 2011 Does a parthenogenesis-inducing Wolbachia induce vestigial cytoplasmic incompatibility? Naturwissenschaften 98: 175-180Kraaijeveld K, Franco P, Reumer BM, van Alphen JJM 2009 Effects of parthenogenesis and geographic isolation on female sexual traits in a parasitoid wasp. Evolution 63: 3085-3096.
Molecular changes underlying compensated trait loss
Essential traits may become redundant when they are provided for by biological interactions. Such traits may then be lost during evolution. For example, primates (including humans) have lost the ability to synthesize vitamin C de novo, because of excess vitamin C in their diet. Similarly, multiple insect lineages have lost the ability to convert carbohydrates to lipids after switching to a parasitoid lifestyle. We are elucidating the molecular changes underlying the loss of lipid biosynthesis in parasitoid insects. Detailed studies on the wasp Nasonia vitripennis are combined with whole-genome sequencing of selected parasitoids in unrelated families to assess whether the loss of lipogenesis has been repeated on a genomic level.
Stichting Leve DNA