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Molecular phylogenetics and evolution of Orchidinae and selected Habenariinae (Orchidaceae)
Internal transcribed spacer (ITS nuclear rDNA) data have been obtained from 190 terrestrial orchid species, encompassing all genera and the great majority of the widely recognized species of
Pteridosperms are the backbone of seed-plant phylogeny1
TLDR
These five extant groups were embedded in the derived half of a morphologically diverse spectrum of extinct taxa that strongly influenced tree topology and elucidated patterns of acquisition of morphological character-states, demonstrating that pteridosperms and other more derived “stem-group” Gymnosperms are critical for understanding seed-plant relationships.
Population genetic structure in European populations of Spiranthes romanzoffiana set in the context of other genetic studies on orchids
TLDR
The observed patterns of population differentiation in S. romanzoffiana are compared with other studies of orchids, revealing a wide range of values that belie recent contrasting published generalisations that claim thatorchids show either higher, or lower, levels ofpopulation differentiation than other plant families.
EARLY EVOLUTION OF LAND PLANTS: Phylogeny, Physiology, and Ecology of the Primary Terrestrial Radiation
TLDR
The Siluro-Devonian primary radiation of land biotas is the terrestrial equivalent of the much-debated Cambrian “explosion” of marine faunas, which ended with the formation of evolutionary and ecological frameworks analogous to those of modern ecosystems.
Roles of synorganisation, zygomorphy and heterotopy in floral evolution: the gynostemium and labellum of orchids and other lilioid monocots
TLDR
Comparisons to Corsia and Pauridia indicate that there are at least two key genes or sets of genes controlling adnation, adaxial stamen suppression and labellum development in lilioid monocots; at least one is responsible for stamen adnation to the style (i.e. gynostemium formation), and another controls adaxia stamens suppression and adaxianlabellum formation in orchids.
Friends or relatives? Phylogenetics and species delimitation in the controversial European orchid genus Ophrys.
TLDR
Heterogeneous copies of the nuclear ITS region show that some putative Ophrys species arose through hybridization rather than divergent speciation, suggesting that the genus has been substantially over-divided at the species level.
Experimental Cladistic Analysis of Anatomically Preserved Arborescent Lycopsids from the Carboniferous of Euramerica: An Essay on Paleobotanical Phylogenetics
This evolutionary cladistic analysis of the arborescent (wood-producing) lycopsids, an exclusively fossil group of vascular plants, is confined to the strongest available data: anatomically preserved
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