| Title: | "Origin of gall-inducing from leaf-mining in Caloptilia micromoths (Lepidoptera, Gracillariidae)" |
| Author(s): | Guiguet A; Ohshima I; Takeda S; Laurans F; Lopez-Vaamonde C; Giron D; |
| Address: | "Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS/Universite de Tours, UFR Sciences et Techniques, Tours, France. antoine.guiguet@etu.univ-tours.fr. Department of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan. antoine.guiguet@etu.univ-tours.fr. Department of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan. Cell and Genome Biology, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan. BioForA, INRA, ONF, 45075, Orleans, France. Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS/Universite de Tours, UFR Sciences et Techniques, Tours, France. INRA, UR0633 Zoologie Forestiere, Orleans, France" |
| DOI: | 10.1038/s41598-019-43213-7 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "In insects, the gall-inducing life-style has evolved independently many times. Several evolutionary pathways leading to this lifestyle have been proposed. While there is compelling evidence supporting surface-feeders and stem-borers as ancestral states of insect gall-inducers, an evolutionary pathway from leaf-miners remains hypothetical. Here we explored this question by comparing the developmental processes of two micromoths, a gall-inducer Caloptilia cecidophora (Lep., Gracillariidae), and its non-gall-inducing relative C. ryukyuensis. Like other Caloptilia, the first and second instars of C. cecidophora are leaf-miners and the gall is initiated inside the leaf mine by the third instar, thus suggesting leaf-mining as an ancestral, plesiomorphic state in this case. This is the first example of an insect species switching from leaf-mining to gall-inducing during larval development. The first two leaf-mining instars of C. cecidophora exhibit an absence of growth and a reduced time duration compared to C. ryukyuensis. The shortening of the duration of leaf-mining stages is apparently compensated in C. cecidophora by a larger egg size than C. ryukyuensis, and an additional larval instar during the gall phase" |
| Keywords: | Animals Biological Evolution *Herbivory *Host-Parasite Interactions Larva/*physiology Lepidoptera/*physiology Plant Leaves/*parasitology Plant Tumors/*parasitology; |
| Notes: | "MedlineGuiguet, Antoine Ohshima, Issei Takeda, Seiji Laurans, Francoise Lopez-Vaamonde, Carlos Giron, David eng Research Support, Non-U.S. Gov't England 2019/05/03 Sci Rep. 2019 May 1; 9(1):6794. doi: 10.1038/s41598-019-43213-7" |
