AFLP reveals cryptic population structure in migratory European red admirals (Vanessa atalanta)

Brattström, O. , Åkesson, S. and Bensch, S. (2010) AFLP reveals cryptic population structure in migratory European red admirals (Vanessa atalanta). Ecological Entomology, 35(2), pp. 248-252. (doi: 10.1111/j.1365-2311.2009.01163.x)

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1. The genetic differentiation in a migratory butterfly, the red admiral (Vanessa atalanta), was investigated to discern patterns of migratory routes used across Europe. AFLP profiles showed significant differences between almost all sampled locations, but there was no clear pattern of isolation-by-distance. 2. Using the software STRUCTURE 2.2, we found two distinct genotype clusters present in different frequencies at all study sites. The frequencies of these genotypic clusters varied significantly between years within the same site. Remarkably few individuals were of mixed ancestry, indicating that some isolating mechanisms are present. Twenty-seven mtDNA haplotypes were identified but they showed no geographic structure, nor were they related to either of the two genotype clusters identified in the AFLP data. 3. Most field observations of migrating red admirals suggest a regular north–south migration pattern in Europe. Our data indicate both long-distance migration and a more variable pattern in orientation, since the composition of the two genotypic clusters shows dramatic variation between sites and years in the northern part of the distribution range.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Brattstrom, Dr Oskar
Authors: Brattström, O., Åkesson, S., and Bensch, S.
College/School:College of Medical Veterinary and Life Sciences > School of Life Sciences
Journal Name:Ecological Entomology
Publisher:Royal Entomological Society
ISSN (Online):1365-2311
Published Online:24 January 2010

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