Phenotypic variability of natural populations of an invasive drosophilid, Zaprionus indianus, on different continents: comparison of wild-living and laboratory-grown flies.
| Title: | Phenotypic variability of natural populations of an invasive drosophilid, Zaprionus indianus, on different continents: comparison of wild-living and laboratory-grown flies. |
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| Authors: | Yassin A; Laboratoire évolution, génomes et spéciation, CNRS, 91198 Gif-sur-Yvette cedex, France.; David JR; Bitner-Mathé BC |
| Source: | Comptes rendus biologies [C R Biol] 2009 Oct; Vol. 332 (10), pp. 898-908. Date of Electronic Publication: 2009 Aug 12. |
| Publication Type: | Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: Académie des sciences Country of Publication: France NLM ID: 101140040 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1768-3238 (Electronic) Linking ISSN: 16310691 NLM ISO Abbreviation: C R Biol Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2020- : Paris, France : Académie des sciences; Original Publication: Paris : Elsevier, c2002- |
| MeSH Terms: | Drosophilidae/*anatomy & histology; Animal Structures/anatomy & histology ; Animals, Laboratory/anatomy & histology ; Animals, Laboratory/growth & development ; Animals, Wild/anatomy & histology ; Animals, Wild/growth & development ; Drosophilidae/growth & development ; Wings, Animal/anatomy & histology ; Adaptation, Physiological ; Animals ; Body Size ; Brazil ; Climate ; Ecosystem ; Egypt ; Female ; Male ; Phenotype ; Sex Characteristics |
| Abstract: | Phenotypic variability in nature is the most important feature for Darwinian adaptation, yet it has been rarely investigated in invasive species. Zaprionus indianus is an Afrotropical drosophilid species that have recently invaded the Palearctic and the Neotropical regions. Here, we compared the variability of three size-related traits and one meristic trait the sternopleural (STP) bristle number, between wild-collected flies living under different conditions: a stressful Mediterranean environment in Egypt, and a benign tropical environment in Brazil. From each population, a F(1) generation was also grown under the stable conditions of the laboratory. Variability of size in nature had a variance 13 times greater than in the laboratory, but not affected by different climates. By contrast, STP variability was identical in nature and in the laboratory. Sexual dimorphism was also investigated with contrasting results between traits. It is suggested that the very high invasiveness of Z. indianus might be related to a better capacity to survive adverse conditions. |
| Entry Date(s): | Date Created: 20091013 Date Completed: 20091217 Latest Revision: 20151119 |
| Update Code: | 20260130 |
| DOI: | 10.1016/j.crvi.2009.06.003 |
| PMID: | 19819410 |
| Database: | MEDLINE |
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't