• Publications
  • Influence
Reinforcement in plants.
  • R. Hopkins
  • Biology, Medicine
  • The New phytologist
  • 1 March 2013
TLDR
This work discusses how all three strategies for the investigation of the process of reinforcement find evidence consistent with reinforcement occurring in plants, and focuses largely on case studies, and uses research on Phlox drummondii to illustrate the importance of testing alternative hypotheses. Expand
Pollinator-Mediated Selection on Flower Color Allele Drives Reinforcement
TLDR
Using common-garden field experiments, it is demonstrated that reinforcing selection is generated by nonrandom pollinator movement, in which pollinators move less frequently between intensely pigmented P. drummondii and P. cuspidata. Expand
Identification of two genes causing reinforcement in the Texas wildflower Phlox drummondii
TLDR
Names are identified of two genes that appear to cause a flower colour change in Phlox drummondii that involve cis-regulatory mutations to genes in the anthocyanin biosynthetic pathway (ABP). Expand
A latitudinal cline and response to vernalization in leaf angle and morphology in Arabidopsis thaliana (Brassicaceae).
TLDR
The results show genetically based clinal variation as well as environmentally induced variation in leaf traits in Arabidopsis thaliana as predicted by functional and adaptive hypotheses. Expand
MOLECULAR SIGNATURES OF SELECTION ON REPRODUCTIVE CHARACTER DISPLACEMENT OF FLOWER COLOR IN PHLOX DRUMMONDII
TLDR
It is demonstrated that restricted gene flow and genetic drift cannot explain the pattern of flower‐color divergence in this species and a signature of selection at the second locus is revealed, indicating selection is responsible for divergence in sympatry. Expand
The Cost of Reinforcement: Selection on Flower Color in Allopatric Populations of Phlox drummondii*
TLDR
This work investigates flower color divergence in the wildflower Phlox drummondii, which is caused by reinforcement in the regions sympatric with its congenerPhlox cuspidata, and predicts how flower color alleles migrating from sympatry will evolve in allopatry. Expand
Hybridization in Plants: Old Ideas, New Techniques[OPEN]
TLDR
How new advancements in genomic and genetic tools are revolutionizing the ability to document the occurrence of and investigate the outcomes of hybridization in plants is discussed. Expand
Parental effects in Plantago lanceolata L. II. Manipulation of grandparental temperature and parental flowering time
TLDR
The data suggest that heritable GPT effects arise from gametophytic selection or genomic modification, and that genotype-specific responses are necessary if parental temperature is to influence the evolutionary divergence of life history and breeding patterns in populations growing in different temperature regimes. Expand
Sonicating bees demonstrate flexible pollen extraction without instrumental learning
TLDR
The results show that although bees did not display instrumental learning of sonication frequency, their sonication motor routine is nevertheless flexible, and larger bees showed more flexibility in sonications frequency and acceleration. Expand
Strong Reinforcing Selection in a Texas Wildflower
TLDR
This work quantifies the strength of reinforcing selection in the Texas wildflower Phlox drummondii using a strategy that weds a population genetic model with field data and finds that selection on flower color genes generated by reinforcement is exceptionally strong. Expand
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