Novel microsatellite DNA markers indicate strict parthenogenesis and few genotypes in the invasive willow sawfly Nematus oligospilus
V Caron, M Norgate, FJ Ede, T Nyman, P Sunnucks
BULLETIN OF ENTOMOLOGICAL RESEARCH | CAMBRIDGE UNIV PRESS | Published : 2013
Invasive organisms can have major impacts on the environment. Some invasive organisms are parthenogenetic in their invasive range and, therefore, exist as a number of asexual lineages (=clones). Determining the reproductive mode of invasive species has important implications for understanding the evolutionary genetics of such species, more especially, for management-relevant traits. The willow sawfly Nematus oligospilus Förster (Hymenoptera: Tenthredinidae) has been introduced unintentionally into several countries in the Southern Hemisphere where it has subsequently become invasive. To assess the population expansion, reproductive mode and host-plant relationships of this insect, microsatel..View full abstract
We would like to thank colleagues for sharing samples (H. Roininen, C. Eardley, P. Price, C. Linnen and L. Kapari), A. Weeks for methodological advice, G. Perdomo, T. Hunt and D. Clements for technical assistance, A. Pavlova, C. Schmuki and T. Draper for useful discussions and H. Loxdale and an anonymous reviewer for helpful suggestions on the manuscript. This research was funded by Holsworth Endowment, the Department of Primary Industries Nancy Millis Postgraduate Award, North East Catchment Management Agency, West Gippsland Catchment Management Agency, North Central Catchment Management Agency and Melbourne Water.