Complex Patterns of Gene Duplication in the APETALA3 and PISTILLATA Lineages of the Ranunculaceae

By E. Kramer, V. D. Di Stilio, P. Schlüter. INTERNATIONAL JOURNAL PLANT SCIENCES, 2003

227 citations recorded by the source corpus.

It has been proposed that the diversification of the MADS‐box gene family of transcription factors has played a major role in the radiation of land plants. This suggestion is based on the critical roles that these genes play in plant development and the apparent coincidence of key duplication events with major radiations, such as the establishment of the B and C lineages concurrent with the evolution of the seed plants. On a more recent scale, it is also possible that subsequent duplication events have contributed to later morphological diversifications. In order to investigate this possibility, we are studying the evolution of homologs of the petal and stamen identity genes APETALA3 (AP3) and PISTILLATA (PI) in the Ranunculaceae. In this family, the AP3 and PI lineages have undergone many duplication events at every phylogenetic level. Early duplications gave rise to three paralogous AP3 lineages, which are found throughout the family. In contrast, numerous duplications have occurred relatively recently in the PI lineage. We outline a hypothesis that these duplications have played a role in the evolution of the unique types of petaloid organs in the Ranunculaceae and present preliminary expression data supporting such a scenario.

Subfields: Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/9ab26d75ec0ec9069211a204dad21aba3b07f6a8

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Molecular Biology

In Plant Science

Citations in the corpus

Flower Evolution: The Origin and Subsequent Diversification of the Angiosperm Flower (2009, background): “…of dimerization of B-function genes to form tetramers with SEP1–4 genes, in effect creating the fuzzy expression domains inherent in the proposed models of shifting/sliding boundaries (Bowman 1997, Kramer et al. 2003) or fading borders (Buzgo et al. 2004; reviewed in Soltis et al. 2006).”
Elaborate petals and staminodes in eudicots: Diversity, function, and evolution (2006, background): “In ‘core’ Ranunculales (including Ranunculaceae, Berberidaceae, Menispermaceae, Lardizabalaceae), this complication is associated with the presence of nectaries on the petals.”
Angiosperm Floral Evolution: Morphological Developmental Framework (2006, background): “Such spiral flowers led to the concept of sliding boundaries (Kramer et al., 2003) or fading borders (Buzgo et al.”