An oligogenic architecture underlying ecological and reproductive divergence in sympatric populations.
| Autor: | Briševac D; Max Planck Research Group Biological Clocks, Max Planck Institute for Evolutionary Biology, Ploen, Germany., Peralta CM; Max Planck Research Group Biological Clocks, Max Planck Institute for Evolutionary Biology, Ploen, Germany., Kaiser TS; Max Planck Research Group Biological Clocks, Max Planck Institute for Evolutionary Biology, Ploen, Germany. |
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| Jazyk: | angličtina |
| Zdroj: | ELife [Elife] 2023 Feb 28; Vol. 12. Date of Electronic Publication: 2023 Feb 28. |
| DOI: | 10.7554/eLife.82825 |
| Abstrakt: | The evolutionary trajectories and genetic architectures underlying ecological divergence with gene flow are poorly understood. Sympatric timing types of the intertidal insect Clunio marinus (Diptera) from Roscoff (France) differ in lunar reproductive timing. One type reproduces at full moon, the other at new moon, controlled by a circalunar clock of yet unknown molecular nature. Lunar reproductive timing is a magic trait for a sympatric speciation process, as it is both ecologically relevant and entails assortative mating. Here, we show that the difference in reproductive timing is controlled by at least four quantitative trait loci (QTL) on three different chromosomes. They are partly associated with complex inversions, but differentiation of the inversion haplotypes cannot explain the different phenotypes. The most differentiated locus in the entire genome, with QTL support, is the period locus, implying that this gene could not only be involved in circadian timing but also in lunar timing. Our data indicate that magic traits can be based on an oligogenic architecture and can be maintained by selection on several unlinked loci. Competing Interests: DB, CP, TK No competing interests declared (© 2023, Briševac et al.) |
| Databáze: | MEDLINE |
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