The floral quartet model of floral organ specification poses that different tetramers of MIKC-
type MADS-domain transcription factors control gene expression and hence the identity of …

Background Understanding the mode and mechanisms of the evolution of the angiosperm
flower is a long-standing and central problem of evolutionary biology and botany. It has …

Increasingly robust understanding of angiosperm phylogeny allows more secure
reconstruction of the flower in the most recent common ancestor of extant angiosperms and …

The naturally occurring bisexual cone of gymnosperms has long been considered a
possible intermediate stage in the origin of flowers, but the mechanisms governing bisexual …

The origin of the flower was a key innovation in the history of complex organisms,
dramatically altering Earth's biota. Advances in phylogenetics, developmental genetics, and …

Since 150 years it is hypothesized now that evolution always proceeds in a countless
number of very small steps (Darwin in On the origin of species by means of natural selection …

20 years after establishment of the ABC model many of the molecular mechanisms
underlying development of the angiosperm flower are relatively well understood. Central …

Recent attempts to address the long-debated 'origin'of the angiosperms depend on a
phylogenetic framework derived from a matrix of taxa versus characters; most assume that …

In flowering plants, homologs of the A rabidopsis phosphatidylethanolamine‐binding protein
(PEBP) FLOWERING LOCUS T (FT) are key components in controlling flowering time. We …

For successful reproduction, angiosperms must form fertile flowers at the appropriate
positions and at the appropriate times. The reproductive transition is especially important for …