Putative Signals of Generalist Plant Species Adaptation to Local Pollinator Communities and Abiotic Factors
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Date
2023-03
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Journal Article
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Abstract
The reproductive success of flowering plants with generalized pollination systems is influenced by interactions with a diverse pollinator community and abiotic factors. However, knowledge about 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 analysis with a genome scan for signals of population genomic differentiation to discover genetic variants associated with the ecological variation. We identified genomic regions putatively involved in the adaptation of B. incana to the identity of local pollinator functional categories and pollinator community composition. Interestingly, we observed several shared candidate genes associated with long-tongue bees, soil texture, and temperature variation. We established a genomic map of potential generalist flowering plant local adaptation to complex biotic interactions, and the importance of considering multiple environmental factors to describe the adaptive landscape of plant populations.
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published
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40 (3)
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Publisher
Oxford University Press
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Subject
Brassica incana; generalist-pollinated plant species; local adaptation; natural populations; plant-pollinator interactions; genome-environmental association
Organisational unit
02207 - Functional Genomics Center Zurich / Functional Genomics Center Zurich