Short- and Long-Term Changes in Chromosomal Inversion Polymorphism and Global Warming: Drosophila Subobscura From the Balkans
| Autor: | Zivanovic, Goran, Arenas Solà, Concepción, Mestres i Naval, Francesc |
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| Přispěvatelé: | Universitat de Barcelona |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Israel Journal of Ecology & Evolution Dipòsit Digital de la UB Universidad de Barcelona Recercat. Dipósit de la Recerca de Catalunya instname |
| Popis: | The chromosomal inversion polymorphism of Drosophila subobscura is adaptive to environmental changes. The population of Petnica, Serbia, was chosen to analyze short- and long-term changes in this polymorphism. Short-term changes were studied in the samples collected in May, June, and August of 1995. The inversion polymorphism varied over these months, although various interpretations are possible. To analyze long-term changes, samples obtained in May 1995 and May 2010 were compared. The frequency of the "cold" adapted inversions (A(st), J(st), U-st, E-st, and O-st) decreased and that of the "warm" adapted inversions (A(2), J(1), U1+2, and O3+4) increased, from 1995 to 2010. These changes are consistent with the general increase in temperature recorded in Petnica for the same period. Finally, the possible response of chromosomal polymorphism to global warming was analyzed at the regional level (Balkan peninsula). This polymorphism depends on the ecological conditions of the populations, and the changes observed appear to be consistent with global warming expectations. Natural selection seems to be the main mechanism responsible for the evolution of this chromosomal polymorphism. Ministry of Education, Science and Technological Development of the Republic of Serbia [173025]; Ministerio de Ciencia e Innovacion (Spain) [BFU2009-07564]; Generalitat de Catalunya (Spain) [2009 SGR 636] |
| Databáze: | OpenAIRE |
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