Playing with Extremes Origins and Evolution of Exaggerated Female
Molecular Phylogenetics and Evolution 115 (2017) 95–105 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Playing with extremes: Origins and evolution of exaggerated female forelegs MARK in South African Rediviva bees ⁎ Belinda Kahnta,b, , Graham A. Montgomeryc, Elizabeth Murrayc, Michael Kuhlmannd,e, Anton Pauwf, Denis Michezg, Robert J. Paxtona,b, Bryan N. Danforthc a Institute of Biology/General Zoology, Martin-Luther-University Halle-Wittenberg, Hoher Weg 8, 06120 Halle (Saale), Germany b German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany c Department of Entomology, Cornell University, 3124 Comstock Hall, Ithaca, NY 14853-2601, USA d Zoological Museum, Kiel University, Hegewischstr. 3, 24105 Kiel, Germany e Dept. of Life Sciences, Natural History Museum, Cromwell Rd., London SW7 5BD, UK f Department of Botany and Zoology, Stellenbosch University, Matieland 7602, South Africa g Laboratoire de Zoologie, Research institute of Biosciences, University of Mons, Place du Parc 23, 7000 Mons, Belgium ARTICLE INFO ABSTRACT Keywords: Despite close ecological interactions between plants and their pollinators, only some highly specialised polli- Molecular phylogenetics nators adapt to a specific host plant trait by evolving a bizarre morphology. Here we investigated the evolution Plant-pollinator interaction of extremely elongated forelegs in females of the South African bee genus Rediviva (Hymenoptera: Melittidae), in Ecological adaptation which long forelegs are hypothesised to be an adaptation for collecting oils from the extended spurs of their Greater cape floristic region Diascia host flowers. We first reconstructed the phylogeny of the genus Rediviva using seven genes and inferred Trait evolution an origin of Rediviva at around 29 MYA (95% HPD = 19.2–40.5), concurrent with the origin and radiation of the Melittidae Succulent Karoo flora.
[Show full text]