Gene duplication is an important mechanism for acquiring new genes and creating genetic
novelty in organisms. Many new gene functions have evolved through gene duplication and …

In 1974, Cartmill introduced the theory that the earliest primate adaptations were related to
their being visually oriented predators active on slender branches. Given more recent data …

Ants are one of the most ecologically and numerically dominant group of terrestrial
organisms with most species diversity currently found in tropical climates. Several …

The accurate and consistent identification of fossil pollen is essential to allow robust
inferences to be drawn with regard to past climate and vegetation change. Identifications are …

Polyploidy (or whole-genome doubling) is a key mechanism for plant speciation leading to
new evolutionary lineages. Several lines of evidence show that most species among …

Angiosperm and conifer tree species respond differently when exposed to elevated CO2,
with angiosperms found to dynamically reduce water loss while conifers appear insensitive …

The Chinese Early Cretaceous flora was divided phytogeographically into the Northern
Floristic Province and the Southern Floristic Province. The “temperate–wet vegetations” and …

A fossil angiosperm from the Aptian Crato Formation (Brazil), Schenkeriphyllum
glanduliferum n. gen. n. sp. is described and phylogenetically analyzed. The taxon consists …

The structural homology of the daffodil corona has remained a source of debate throughout
the history of botany. Over the years it has been separately referred to as a modified petal …

Abstract Background The extant Gnetales include three monotypic families, namely,
Ephedraceae (Ephedra), Gnetaceae (Gnetum), and Welwitschiaceae (Welwitschia), all of …