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March 30, 2026New Phytologist1 citationsOpen Access

Mating System Modulates Phenotypic Associations with Introgression in Clarkia

Introgression despite minimal hybridization: mating system modulates phenotypic associations with introgression in Clarkia

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Authors

SSShelley A. SiantaBKBrooke KernASAmal Suri

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Overview

Analysis reveals introgression and backcrossing dynamics shaped by sexual traits in Clarkia species.

Key Points

  • This research examines the role of mating systems in influencing gene flow and introgression between Clarkia species.
  • Analyzed 410 genomes from selfing and outcrossing Clarkia sister taxa across four contact zones.
  • Utilized common garden and geospatial data to assess hybrid formation and admixture proportions.
  • Tested associations between admixture proportions and phenotypic/spatial variation within the contact zones.
  • Identified asymmetric introgression from selfing to outcrossing species with no early generation hybrids.
  • Found spatially structured phenotypic associations linked to introgression in selfers.
  • Highlighted the influence of sexual traits, particularly flower color, on reducing admixture and promoting introgression.

Cite This Study

Sianta et al. (2026) studied this question.

synapsesocial.com/papers/69c9c5c5f8fdd13afe0bdb26https://doi.org/10.1111/nph.71113
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