HR: 11:45h
AN: NB52C-06    [Abstracts]
TI: Molecular phylogeny of the Drusinae (Trichoptera: Limnephilidae): preliminary results
AU: * Pauls, S
EM: steffen.pauls@senckenberg.de
AF: Department of Conservation and Limnology, Research Institute Senckenberg, Lochmuehle 2, Biebergemuend-Bieber, HE 63599 Germany
AU: Lumbsch, T
EM: tlumbsch@fieldmuseum.org
AF: Department of Botany, The Field Museum, 1400 S. Lake Shore Drive, Chicago, IL 60605 United States
AU: Haase, P
EM: phaase@senckenberg.de
AF: Department of Conservation and Limnology, Research Institute Senckenberg, Lochmuehle 2, Biebergemuend-Bieber, HE 63599 Germany
AB: We examine the phylogenetic relationships within the subfamily of the Drusinae using molecular markers. Sequence data from two mitochondrial loci (mitochondrial cytochrome oxidase I, mitochondrial ribosomal large subunit) are used to infer the relationships within and among the genera of the Drusinae. Sequence data were generated for 21 taxa from five genera from the subfamily. The molecular data were analyzed using a Bayesian Markov Chain Monte Carlo and a Maximum Parsimony approach for both single gene and combined data sets. Several hypotheses of relationships previously inferred based on morphological characters were tested. The study revealed a very close relationship between Drusus discolor and D. romanicus suggesting that divergence between these two species occurred recently. The relationships inferred by molecular data suggest that larval morphology may be an important taxonomic character, which has often been neglected. The data also indicate that the genera Ecclisopteryx and Drusus are polyphyletic with respect to one another.
DE: 0400 Biogeosciences
DE: 4239 Limnology
SC: North American Benthological Society [NB]
MN: 2005 Joint Assembly