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Genetic divergence causes parallel evolution of flower color in Chilean Mimulus.

Publication ,  Journal Article
Cooley, AM; Willis, JH
Published in: The New phytologist
August 2009

Deciphering the genetic architecture of phenotypic change provides a framework for understanding how evolution proceeds at a genetic level, and paves the way for work at the molecular level. A series of intra- and interspecific crosses were used to investigate the genetic control of recently evolved floral pigmentation phenotypes in a group of closely related Mimulus species from central Chile. An intraspecific polymorphism was found to be controlled by a single Mendelian locus. Differences between species, by contrast, were composed of multiple independent patterning elements, including both Mendelian and polygenic traits. The most striking phenotypic novelty in this group, anthocyanin pigmentation in the petal lobes, has evolved three times independently. The results illustrate how genetically simple modular elements can interact with polygenic or quantitative traits to create complex new phenotypes. The repeated evolution of petal lobe anthocyanins suggests that natural selection may have played a role in the evolution of red coloration in the Chilean Mimulus, and shows that red coloration has been achieved via different genetic pathways in these closely related species.

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Published In

The New phytologist

DOI

EISSN

1469-8137

ISSN

0028-646X

Publication Date

August 2009

Volume

183

Issue

3

Start / End Page

729 / 739

Related Subject Headings

  • Species Specificity
  • Seeds
  • Quantitative Trait, Heritable
  • Quantitative Trait Loci
  • Polymorphism, Genetic
  • Plant Biology & Botany
  • Pigmentation
  • Phenotype
  • Mimulus
  • Light
 

Citation

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Cooley, A. M., & Willis, J. H. (2009). Genetic divergence causes parallel evolution of flower color in Chilean Mimulus. The New Phytologist, 183(3), 729–739. https://doi.org/10.1111/j.1469-8137.2009.02858.x
Cooley, Arielle M., and John H. Willis. “Genetic divergence causes parallel evolution of flower color in Chilean Mimulus.The New Phytologist 183, no. 3 (August 2009): 729–39. https://doi.org/10.1111/j.1469-8137.2009.02858.x.
Cooley AM, Willis JH. Genetic divergence causes parallel evolution of flower color in Chilean Mimulus. The New phytologist. 2009 Aug;183(3):729–39.
Cooley, Arielle M., and John H. Willis. “Genetic divergence causes parallel evolution of flower color in Chilean Mimulus.The New Phytologist, vol. 183, no. 3, Aug. 2009, pp. 729–39. Epmc, doi:10.1111/j.1469-8137.2009.02858.x.
Cooley AM, Willis JH. Genetic divergence causes parallel evolution of flower color in Chilean Mimulus. The New phytologist. 2009 Aug;183(3):729–739.
Journal cover image

Published In

The New phytologist

DOI

EISSN

1469-8137

ISSN

0028-646X

Publication Date

August 2009

Volume

183

Issue

3

Start / End Page

729 / 739

Related Subject Headings

  • Species Specificity
  • Seeds
  • Quantitative Trait, Heritable
  • Quantitative Trait Loci
  • Polymorphism, Genetic
  • Plant Biology & Botany
  • Pigmentation
  • Phenotype
  • Mimulus
  • Light