| Autor: |
Alessia Russo, Mattia Alessandrini, Moaine El Baidouri, Daniel Frei, Teresa Rosa Galise, Lara Gaidusch, Hannah F. Oertel, Sara E. Garcia Morales, Giacomo Potente, Qin Tian, Dmitry Smetanin, Joris A. M. Bertrand, Renske E. Onstein, Olivier Panaud, Jürg E. Frey, Salvatore Cozzolino, Thomas Wicker, Shuqing Xu, Ueli Grossniklaus, Philipp M. Schlüter |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2041-1723 |
| DOI: |
10.1038/s41467-024-50622-4 |
| Popis: |
Abstract Pollinator-driven evolution of floral traits is thought to be a major driver of angiosperm speciation and diversification. Ophrys orchids mimic female insects to lure male pollinators into pseudocopulation. This strategy, called sexual deception, is species-specific, thereby providing strong premating reproductive isolation. Identifying the genomic architecture underlying pollinator adaptation and speciation may shed light on the mechanisms of angiosperm diversification. Here, we report the 5.2 Gb chromosome-scale genome sequence of Ophrys sphegodes. We find evidence for transposable element expansion that preceded the radiation of the O. sphegodes group, and for gene duplication having contributed to the evolution of chemical mimicry. We report a highly differentiated genomic candidate region for pollinator-mediated evolution on chromosome 2. The Ophrys genome will prove useful for investigations into the repeated evolution of sexual deception, pollinator adaptation and the genomic architectures that facilitate evolutionary radiations. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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