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The Floral Regulator LEAFY Evolves by Substitutions in the DNA Binding Domain
It is reported that the DNA binding domain of LEAFy, although largely conserved, has diverged in activity, and other, more rapidly evolving portions of the protein have few effects on LEAFY activity. Expand
Phylogeny of the sundews, Drosera (Droseraceae), based on chloroplast rbcL and nuclear 18S ribosomal DNA Sequences.
Preliminary phylogenetic analyses of DNA sequences of the chloroplast rbcL gene for 59 species of Drosera revealed that all DroserA species form a clade sister to aClade including Dionaea and Aldrovanda, suggesting that the snap traps of Aldrovandas and Dionaea are homologous despite their morphological differences. Expand
Ancestral expression patterns and evolutionary diversification of YABBY genes in angiosperms.
The expression data and phylogeny for YAB genes suggest that the ancestral YAB gene was expressed in proliferating tissues of lateral organs, including carpel-specific expression was acquired after divergence of the Nymphaeales. Expand
Evolution of epiphytes in Davalliaceae and related ferns
A scenario for the evolution of life forms in Davalliaceae and related groups that involves successive changes in rhizome habit, root function, and germination place is hypothesized. Expand
Diversification of gene function: homologs of the floral regulator FLO/LFY control the first zygotic cell division in the moss Physcomitrella patens
The rare sporophytes that formed on the PpLFY double disruptants showed mostly normal organogenesis, but had abnormalities in the pattern of cell division, supporting a role of P pLFY genes in regulating cell division. Expand
A revised family-level classification for eupolypod II ferns (Polypodiidae: Polypodiales)
We present a family-level classification for the eupolypod II clade of leptosporangiate ferns, one of the two major lineages within the Eupolypods, and one of the few parts of the fern tree of lifeExpand
Molecular phylogenetic analysis of Podostemaceae: implications for taxonomy of major groups
Molecular phylogenetic analysis of matK sequences for 657 samples showed that plants of Tristicha (Tristichoideae) and of Weddellina (Weddellinoideae), which are currently treated as monospecific, had great matK differentiation equivalent to at least interspecific variation. Expand
Ontogenetic Anatomy of Streptocarpus grandis(Gesneriaceae) with Implications for Evolution of Monophylly
The monophylly of Streptocarpus grandis was examined ontogenetically and anatomically and the evolution of this unique growth of one-leaved StreptOCarpus is discussed with regard to morphogenetic data. Expand
Maternal‐effect gene Ces5/Ooep/Moep19/Floped is essential for oocyte cytoplasmic lattice formation and embryonic development at the maternal‐zygotic stage transition
Analysis showed that CES5/OOEP was directly associated with the CPLs, which have long been predicted to function as a storage form for components that are maternally contributed to the early embryo. Expand
YABBY2‐Homologue Expression in Lateral Organs of Amborella trichopoda (Amborellaceae)1
It is found that the homologue is expressed in the adaxial tissues of the carpel and leaf, in contrast to abaxial expression in A. thaliana, which indicates that different patterns of YABBY2 expression evolved within the angiosperms. Expand