Results 11 to 20 of about 26,958 (168)

The root of the angiosperms revisited [PDF]

open access: yesProceedings of the National Academy of Sciences, 2002
Most recent phylogenetic analyses of basal angiosperms have converged on the placement of Amborella as sister to all other extant angiosperms. However, certain recent studies suggest that Amborella and Nymphaeales (water lilies) form a clade sister to ...
Michael J, Zanis   +4 more
openaire   +2 more sources

Past connections with the mainland structure patterns of insular species richness in a continental‐shelf archipelago (Aegean Sea, Greece)

open access: yesEcology and Evolution, 2021
Recent research in island biogeography has highlighted the important role of late Quaternary sea‐level fluctuations in shaping biogeographic patterns in insular systems but focused on oceanic systems.
Cyril Hammoud   +7 more
doaj   +1 more source

Systematic composition, species diversity and plant chorology of Wadi Shuwaib: A typical desert wadi in the eastern region of United Arab Emirates (UAE) [PDF]

open access: yesBiodiversity Data Journal
The study analyses the floristic diversity, life span, life form and phytogeographic affinities of the flora of Wadi Shuwaib, a desert wadi in the eastern region of the United Arab Emirates.
Sabitha Sakkir   +4 more
doaj   +3 more sources

A late origin of the extant eukaryotic diversity: divergence time estimates using rare genomic changes

open access: yesBiology Direct, 2011
Background Accurate estimation of the divergence time of the extant eukaryotes is a fundamentally important but extremely difficult problem owing primarily to gross violations of the molecular clock at long evolutionary distances and the lack of ...
Koonin Eugene V   +4 more
doaj   +1 more source

AN IDENTIFICATION OF ANGIOSPERMS IN KEMBANG NATURE RESERVE, JEPARA REGENCY

open access: yesBioLink, 2023
Based on the diversity of angiosperms which are widespread throughout the world and play an important role, identification is necessary, especially in flora reserves.
Maila Shofa Maghfiroh   +2 more
doaj   +1 more source

Angiosperm pollen grains in sedimentary profiles from two Brazilian Atlantic rainforests, northernmost coastal plain from Rio Grande do Sul, southern Brazil. Part II [PDF]

open access: yesActa Botânica Brasílica, 2022
The state of Rio Grande do Sul (RS) is located in the extreme south of Brazil, within a transition region between the tropical and subtropical zones of South America that has been frequently affected by fluctuations in climate and vegetation over the ...
Lionel Roth, Maria Luisa Lorscheitter
doaj   +1 more source

Studies on the Evolution of the Angiosperms [PDF]

open access: yesAnnals of Botany, 1908
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Arber, E. A. Newell (Edward Alexander Newell)   +1 more
openaire   +1 more source

Spatial Patterns and Drivers of Angiosperm Sexual Systems in China Differ Between Woody and Herbaceous Species

open access: yesFrontiers in Plant Science, 2020
Plant sexual systems play an important role in the evolution of angiosperm diversity. However, large-scale patterns in the frequencies of sexual systems (i.e. dioecy, monoecy, and hermaphroditism) and their drivers for species with different growth forms
Yunyun Wang   +9 more
doaj   +1 more source

Developmental Flower and Rhizome Morphology in Nuphar (Nymphaeales): An Interplay of Chaos and Stability

open access: yesFrontiers in Cell and Developmental Biology, 2020
European species of Nuphar are amongthe most accessible members of the basal angiosperm grade, but detailed studies using scanning electron microscopy are lacking. We provide such data and discuss them in the evolutionary context. Dorsiventral monopodial
Elena S. El   +3 more
doaj   +1 more source

Impact of air pollution on reproductive biology of plants: Mechanisms and consequences

open access: yesPlant Stress
Reproductive fitness is paramount to a plant’s ecological and evolutionary processes, establishing species persistence, population dynamics, and ecosystem stability.
Nasrin Banu Khan   +6 more
doaj   +1 more source

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