Results 11 to 20 of about 231 (117)

Complete plastid genomes from Ophioglossum californicum, Psilotum nudum, and Equisetum hyemale reveal an ancestral land plant genome structure and resolve the position of Equisetales among monilophytes [PDF]

BMC Evolutionary Biology, 2013
Background Plastid genome structure and content is remarkably conserved in land plants. This widespread conservation has facilitated taxon-rich phylogenetic analyses that have resolved organismal relationships among many land plant groups.
Grewe Felix, Guo Wenhu, Gubbels Emily A, Hansen A Katie, Mower Jeffrey P   +4 more
doaj   +4 more sources

Origin of Equisetum: Evolution of horsetails (Equisetales) within the major euphyllophyte clade Sphenopsida [PDF]

American Journal of Botany, 2018
Premise of the StudyEquisetum is the sole living representative of Sphenopsida, a clade with impressive species richness, a long fossil history dating back to the Devonian, and obscure relationships with other living pteridophytes. Based on molecular data, the crown group age of Equisetum is mid‐Paleogene, although fossils with possible crown ...
Andrés Elgorriaga, Ignacio H. Escapa, Gar W. Rothwell, Alexandru M. F. Tomescu, N. Rubén Cúneo   +4 more
openaire   +3 more sources

Toward freshwater plant diversity surveys with eDNA barcoding and metabarcoding

Environmental DNA, Volume 5, Issue 4, Page 648-670, July 2023., 2023
In this manuscript we present a synthesis of the 22 studies working on eDNA barcoding and metabarcoding approaches for monitoring freshwater plants in lentic, lotic and wetland habitats. We also examine the specific primers, barcodes and reference databases required for succesful plant eDNA surveys.
Armando Espinosa Prieto, Jean‐Nicolas Beisel, Pieternel Verschuren, Laurent Hardion   +3 more
wiley   +1 more source

Decoding the drivers of deep‐time wetland biodiversity: insights from an early Permian tropical lake ecosystem

Palaeontology, Volume 66, Issue 3, May/June 2023., 2023
Abstract Wetlands are important to continental evolution, providing both arenas and refugia for emerging and declining biotas. This significance and the high preservation potential make the resulting fossiliferous deposits essential for our understanding of past and future biodiversity.
Steffen Trümper, Björn Vogel, Sebastian Germann, Ralf Werneburg, Joerg W. Schneider, Alexandra Hellwig, Ulf Linnemann, Mandy Hofmann, Ronny Rößler   +8 more
wiley   +1 more source

Fern cell walls and the evolution of arabinogalactan proteins in streptophytes

The Plant Journal, Volume 114, Issue 4, Page 875-894, May 2023., 2023
Significance Statement Ferns are the sister lineage of seed plants and key to understanding plant evolution. To understand ferns' unique cell walls, we analyzed arabinogalactan proteins (AGPs) from the fern genera Azolla, Salvinia, and Ceratopteris. Comparison of AGP structures throughout the streptophyte lineage reveals special features in relation to
Kim‐Kristine Mueller, Lukas Pfeifer, Lina Schuldt, Péter Szövényi, Sophie de Vries, Jan de Vries, Kim L. Johnson, Birgit Classen   +7 more
wiley   +1 more source

Spatial patterns and climatic drivers of phylogenetic structure for ferns along the longest elevational gradient in the world

Ecography, Volume 2023, Issue 1, January 2023., 2023
Many biodiversity hotspots are located in montane regions, thus, understanding the underlying mechanisms driving species assembly along elevational gradients is of major interest in ecology and biogeography. Here, we assess spatial patterns and climatic drivers, and the effects of clade age, on patterns of phylogenetic structure of ferns along the ...
Hong Qian, Michael Kessler, Yi Jin
wiley   +1 more source

A reappraisal ofNeocalamites and Schizoneura(fossil Equisetales) based on material from the Triassic of East Antarctica

Alcheringa: An Australasian Journal of Palaeontology, 2013
Sphenophytes are a common floral element in the Triassic of Gondwana. Most sphenophyte compression fossils have been conventionally assigned to a few, presumably very widespread species of Neocalamites based on vegetative features of the stems (or pith casts) and the foliage.
Bomfleur, Benjamin, Escapa, Ignacio Hernán, Serbet, Rudolph, Taylor, Edith L., Taylor, Thomas N.   +4 more
openaire   +4 more sources

A new species of the equisetalean plant Equicalastrobus from the Middle Triassic of Argentina [PDF]

Acta Palaeontologica Polonica
We present a morphological-systematic study of new fossil specimens of equisetaleans (horsetails) from the Cortaderita Formation, Sorocayense Group, Middle Triassic, Cuyana Basin, southwest of the San Juan Province, Argentina.
JANO NEHUÉN PROCOPIO RODRÍGUEZ, JOSEFINA BODNAR, MARISOL BELTRÁN   +2 more
doaj   +1 more source

Insect herbivory immediately before the eclipse of the gymnosperms: The Dawangzhangzi plant assemblage of Northeastern China

Insect Science, Volume 29, Issue 5, Page 1483-1520, October 2022., 2022
The Early Cretaceous terrestrial revolution was manifested by global shifts from gymnosperm‐ to angiosperm‐dominated floras. However, responses of insect herbivores to these changes remain unexamined. We evaluated 2 176 plant specimens representing 62 species/morphotypes from the 126‐122 Ma Dawangzhangzi plant assemblage of Northeastern China.
Lifang Xiao, Conrad C. Labandeira, Dong Ren   +2 more
wiley   +1 more source

PLANT FOSSIL REMAINS FROM THE RHAETIAN OF SHEMSHAK FORMATION,NARGES-CHAL AREA, ALBORZ, NE IRAN

Rivista Italiana di Paleontologia e Stratigrafia, 2006
The Shemshak Formation is well-exposed in Narges-Chal area, East Alborz. It contains abundant well-preserved plant megafossils belonging to twenty two taxa of various orders viz., Equisetales, Marattiales, Filicales, Pteridospermales, Bennettitales ...
FATEMEH VAEZ-JAVADI
doaj   +1 more source