Flower Evolution: The Origin and Subsequent Diversification of the Angiosperm Flower

@article{Specht2009FlowerET,
  title={Flower Evolution: The Origin and Subsequent Diversification of the Angiosperm Flower},
  author={Chelsea D. Specht and Madelaine E. Bartlett},
  journal={Annual Review of Ecology, Evolution, and Systematics},
  year={2009},
  volume={40},
  pages={217-243}
}
Developmental genetic pathways involved in flower formation in model plants such as Arabidopsis and maize enable us to identify genes, gene families, and gene networks that are involved in the regulation of flower initiation, growth and differentiation. These genes can then function as “candidate genes” and their expression, function, and biochemical interactions can be explored in other lineages to determine if they provide a necessary and sufficient toolkit for the development of the flower… 
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136 References

The evolution of floral homeotic gene function.

  • V. Irish
  • Biology
    BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2003
It appears that the MADS box gene family has undergone considerable gene duplication and sequence divergence within the angiosperms, and the possibility that these events have allowed the recruitment of these genes to new developmental pathways in particular angiosperm lineages is discussed.

Flower development and evolution: gene duplication, diversification and redeployment.

Evolutionary conservation of angiosperm flower development at the molecular and genetic levels

  • J. Bowman
  • Environmental Science
    Journal of Biosciences
  • 2007
It is concluded that the ABC model is universally applicable to the angiosperms as a whole, and the enormous diversity seen among angios perms flowers is due to genetic pathways that are downstream, or independent, of the genetic programme that specifies floral organ identity.

Angiosperm Floral Evolution: Morphological Developmental Framework

Understanding the Genetic Basis of Floral Diversity

The field of plant developmental evolution seeks to understand the generation of this diversity using comparative genetic approaches that build on work done in model species such as Arabidopsis, but is also making advances in the area of floral symmetry.

The Ancestral Developmental Tool Kit of Land Plants

The genome of the earliest embryophytes encoded homologues of many of the important developmental genes that have been identified in model angiosperm taxa, but the roles of these were probably somewhat different than the roles attributed to them in Arabidopsis and maize.

Expression of Floral Regulators in Basal Angiosperms and the Origin and Evolution of ABC‐Function

Gymnosperm Orthologues of Class B Floral Homeotic Genes and Their Impact on Understanding Flower Origin

These findings strongly suggest that gymnosperm and angiosperm B genes have highly related interaction partners and equivalent functions in the male organs of their different host species.

Floral zygomorphy, the recurring evolution of a successful trait

  • P. Cubas
  • Biology
    BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2004
The origin of zygomorphy is being studied by comparing the function of CYC‐like genes in species withZygomorphic flowers with their function inspecies with radially symmetrical flowers.

Floral variation and floral genetics in basal angiosperms.

This work reviews "trends" in floral morphology and contrast historical, intuitive interpretations with explicit character-state reconstructions using molecular-based trees, focusing on the size, number, and organization of floral organs; the evolution of the perianth; and floral symmetry.
...