| Title: | Floral scent of the Mediterranean fig tree: significant inter-varietal difference but strong conservation of the signal responsible for pollinator attraction |
| Author(s): | Cao L; Hmimsa Y; El Fatehi S; Buatois B; Dubois MP; Le Moigne M; Hossaert-McKey M; Aumeeruddy-Thomas Y; Bagneres AG; Proffit M; |
| Address: | "CEFE, CNRS/University of Montpellier/EPHE/IRD (UMR 5175), 1919 Route de Mende, 34293, Montpellier Cedex 5, France. li.cao@cefe.cnrs.fr. TEDAEEP Research Team, Abdelmalek Essaadi University (FPL), B. P. 745, Poste Principale, 92004, Larache, Morocco. CEFE, CNRS/University of Montpellier/EPHE/IRD (UMR 5175), 1919 Route de Mende, 34293, Montpellier Cedex 5, France. CEFE, CNRS/University of Montpellier/EPHE/IRD (UMR 5175), 1919 Route de Mende, 34293, Montpellier Cedex 5, France. magali.proffit@cefe.cnrs.fr" |
| DOI: | 10.1038/s41598-023-32450-6 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "For thousands of years, humans have domesticated different plants by selecting for particular characters, often affecting less-known traits, including the volatile organic compounds (VOCs) emitted by these plants for defense or reproduction. The fig tree Ficus carica has a very wide range of varieties in the Mediterranean region and is selected for its traits affecting fruits, including pollination, but the effect of human-driven diversification on the VOCs emitted by the receptive figs to attract their pollinator (Blastophaga psenes) is not known. In the present study, VOCs from receptive figs of eight varieties in northern Morocco, were collected at different times within the manual pollination period and analyzed by gas chromatography-mass spectrometry. Genetic analyses using microsatellite loci were performed on the same varieties. Despite strong inter-varietal differences in the quantity and relative proportions of all VOCs, the relative proportions of the four pollinator-attractive VOCs showed limited variation among varieties. There was no significant correlation between genetic markers and chemical profiles of the different varieties. While diversification driven by humans has led to differences between varieties in VOC profiles, this paper suggests that throughout the process of domestication and varietal diversification, stabilizing selection has maintained a strong signal favoring pollinator attraction" |
| Keywords: | *Ficus/genetics Flowers/genetics/chemistry *Odorants/analysis Pollination Trees; |
| Notes: | "MedlineCao, Li Hmimsa, Younes El Fatehi, Salama Buatois, Bruno Dubois, Marie-Pierre Le Moigne, Mailys Hossaert-McKey, Martine Aumeeruddy-Thomas, Yildiz Bagneres, Anne-Genevieve Proffit, Magali eng Research Support, Non-U.S. Gov't England 2023/04/07 Sci Rep. 2023 Apr 6; 13(1):5642. doi: 10.1038/s41598-023-32450-6" |
