Signals of generalist plant species adaptation to local pollinator communities and abiotic factors - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Conference Papers Year : 2024

Signals of generalist plant species adaptation to local pollinator communities and abiotic factors

Abstract

The combined effect of changes in pollinator communities, and the direct impact of soil and climate variation on plant-pollinator interactions can strongly affect the reproductive success of flowering plants. However, knowledge of the adaptative potential of plants to complex ecological networks and the underlying genetic mechanisms is still limited. Based on a pool-sequencing approach of 21 natural populations of Brassica incana in Southern Italy, we combined a genome-environmental association (GEA) analysis with a genome scan for signature of selection to discover genetic variants associated with pollinator communities, edaphic and climatic variation. We demonstrated that B. incana is locally adapted to both single pollinator species and the overall pollinator interactions. Interestingly, we observed a significant number of genetic variants shared between the soil texture (fine silt) and the visits of bumblebees and hoverflies, while few genetic variants involved in both pollinator and climate variation were identified. Our results highlight the adaptive potential of generalist species to complex biotic interactions, and the importance of considering multiple environmental factors to describe their adaptive landscape.
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Dates and versions

hal-04586515 , version 1 (24-05-2024)

Identifiers

  • HAL Id : hal-04586515 , version 1

Cite

Léa Frachon, Luca Arigo, Quint Rusman, Weihong Qi, Giovanni Scopece, et al.. Signals of generalist plant species adaptation to local pollinator communities and abiotic factors. EAGS2024 Toulouse, France génomique, Feb 2024, Toulouse, France. ⟨hal-04586515⟩
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