Evolutionary Transitions in Floral Color

@article{Rausher2008EvolutionaryTI,
  title={Evolutionary Transitions in Floral Color},
  author={Mark D. Rausher},
  journal={International Journal of Plant Sciences},
  year={2008},
  volume={169},
  pages={7 - 21}
}
  • M. Rausher
  • Published 1 January 2008
  • Biology
  • International Journal of Plant Sciences
The tremendous diversity in flower color among angiosperms implies that there have been numerous evolutionary transitions in this character. The conventional wisdom is that a large proportion of these transitions reflect adaptation to novel pollinator regimes. By contrast, recent research suggests that many of these transitions may instead have been driven by selection imposed by nonpollinator agents of selection acting on pleiotropic effects of flower color genes. I evaluate the evidence for… 

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TLDR
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TLDR
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TLDR
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TLDR
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Genetic changes contributing to the parallel evolution of red floral pigmentation among Ipomoea species.

TLDR
Although multiple molecular mechanisms are capable of producing red flowers, a deviation between the distributions of observed and expected mutation types responsible for these evolutionary transitions is found, which suggests the possibility that flower color evolved independently via the same genetic mechanism.

Flower color as a model system for studies of plant evo-devo

TLDR
What is known about the ecological and molecular basis of anthocyanic flower color transitions in natural systems is reviewed and suggestions for future work on this trait are provided, suggesting that there is still much to be learned from the evolutionary development of flowercolor transitions in nature.

Floral Color Variation in Drosera cistiflora Is Associated With Switches in Beetle Pollinator Assemblages

TLDR
The results suggest that beetle pollinators are a significant factor in the evolution of D. cistiflora s.l. flower color, and strong pollinator partitioning among color forms at sites where they are sympatric indicates that pollinators may select strongly on color.

Arctic Mustard Flower Color Polymorphism Controlled by Petal-Specific Downregulation at the Threshold of the Anthocyanin Biosynthetic Pathway

TLDR
A widespread purple-white flower color polymorphism in the mustard Parrya nudicaulis spanning Alaska is described, suggesting the correlation of flower color and climate suggests that the loss of flavonoids in the petals alone may affect the tolerance of white-flowered individuals to colder environments.

Convergent Evolution at the Pathway Level: Predictable Regulatory Changes during Flower Color Transitions

TLDR
Results support the idea that the macroevolution of floral pigmentation follows predictable evolutionary trajectories to reach convergent phenotype space, repeatedly involving regulatory changes.
...

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