부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ympev.2006.05.040 Byline: Linn F. Groeneveld (a), Viola Clausnitzer (b), Heike Hadrys (a)(c) Keywords: Odonata; Pseudostigmatidae; 16S rDNA; EF1; ND1 Abstract: Extreme large body size is rare in modern Zygoptera (damselflies). Only the South and Central American damselfly family Pseudostigmatidae and one African species, Coryphagrion grandis, share the morphological trait of gigantism. By means of phylogenetic analyses using two mitochondrial markers (16S rDNA and ND1) and one nuclear marker (EF1) in combination with an existing morphological data set, we trace the evolution of gigantism in damselflies. Individual and combined data sets were analyzed using the maximum parsimony, minimum evolution and maximum likelihood algorithms. Regardless of the algorithm used and the data set analyzed all principal tree topologies support a monophyly of the damselfly taxa displaying giant body size. This supports the view that the evolution of gigantism in damselflies from Africa and South America is not the result of convergent evolution due to strikingly similar habitat preferences, but rather the result of close genealogical relationship. Because modern odonates evolved before the split of Africa from Gondwanaland, the proposed phylogeny suggests that C. grandis represents a Gondwana relict. Author Affiliation: (a) ITZ, Ecology and Evolution, TiHo Hannover, Bunteweg 17d, D-30559 Hannover, Germany (b) Department of Geography, Philipps-University of Marburg, Deutschhausstr. 10, D-35032 Marburg, Germany (c) Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520-8104, USA Article History: Received 30 July 2004; Revised 24 May 2006; Accepted 26 May 2006