Results 11 to 20 of about 39,995 (294)

Monophyly or paraphyly--the taxonomy of Holcoglossum (Aeridinae: Orchidaceae). [PDF]

open access: yesPLoS ONE, 2012
Recently, there have been a lot of intense debates about the acceptance/rejection of paraphyletic groups in biological classification. On the one hand, evolutionary classification states that similarity and common descent are two criteria for biological ...
Xiaoguo Xiang   +6 more
doaj   +5 more sources

The Topology-Dependent Permutation Test for Monophyly Does Not Test for Monophyly [PDF]

open access: bronzeSystematic Biology, 1996
^Laboratory of Molecular Systematics, MRC-534, Smithsonian Institution, Washington, DC 20560, USA; Email: sxvofford@onyx.si.edu Program in Statistical Genetics, Statistics Department, Box 8203, North Carolina State University, Raleigh, North Carolina 27695-8203, USA; Email: thorne@stat.ncsu.edu ^Department of Genetics, University of Washington, Box ...
David L. Swofford   +3 more
openalex   +2 more sources

Molecules, morphology, and the monophyly of diapsid reptiles [PDF]

open access: hybridContributions to Zoology, 2001
The morphological and molecular evidence for higher-level reptile relationships is reassessed. A combined analysis of 176 osteological, 40 soft anatomical, and 2903 (1783 aligned) molecular characters in 28 amniote taxa yields the traditional reptile tree.
Michael S. Y. Lee
openalex   +3 more sources

ANOTHER MONOPHYLY INDEX: REVISITING THE JACKKNIFE [PDF]

open access: bronzeCladistics, 1995
Abstract — Randomization routines have quickly gained wide usage in phylogenetic systematies. Introduced a decade ago, the jackknife has rarely been applied in cladistic methodology. This data resampling technique was re‐investigated here as a means to discover the effect that taxon removal may have on the stability of the results obtained from ...
Mark E. Siddall
openalex   +4 more sources

New data on the mammalian fauna from the late middle Eocene (MP 15–16) of Mazaterón (Soria, Spain): The youngest presence of the genus Prodissopsalis (Hyaenodonta, Hyaenodontidae) in Europe

open access: yesThe Anatomical Record, EarlyView., 2023
Abstract The Hyaenodonta were the most diverse carnivorous mammals in the European Eocene and were classically divided into three subfamilies: Sinopaninae, Arfianinae, and Proviverrinae, with this latter being the most successful of the three, as it exhibited a much larger geographic and temporal range.
Manuel J. Salesa   +4 more
wiley   +1 more source

Acid digestion and symbiont: Proton sharing at the origin of mitochondriogenesis?

open access: yesBioEssays, Volume 45, Issue 1, January 2023., 2023
ADMit hypothesis for the origin of eukaryotes. A bacterial symbiont became associated with a protophagocytic host that captured prey with membrane processes. The symbiont cooperated to kill and digest the prey with reactive oxygen species and the acidification of the microenvironment.
Mario Mencía
wiley   +1 more source

Endosymbiotic ratchet accelerates divergence after organelle origin

open access: yesBioEssays, Volume 45, Issue 1, January 2023., 2023
Primary endosymbiosis gave rise to mitochondria and plastids. The proximate impacts of organelle origin on lineage evolution have not been addressed at the population level. Using data from the photosynthetic amoeba Paulinella, we hypothesize that primary endosymbiosis accelerates lineage divergence, a process we refer to as the endosymbiotic ratchet ...
Debashish Bhattacharya   +3 more
wiley   +1 more source

The thoracic anatomy of Pselaphus heisei (Pselaphinae, Staphylinidae, Coleoptera)

open access: yesJournal of Morphology, Volume 284, Issue 1, January 2023., 2023
Upper part: SEM micrographs of Pselaphus heisei, lateral view; Lower part: 3D reconstructions of thoracic muscles of Pselaphus heisei, mesal view. Abstract We document external and internal thoracic structures of the free‐living pselaphine beetle Pselaphus heisei (Pselaphitae) using a set of traditional and modern techniques.
Xiao‐Zhu Luo   +2 more
wiley   +1 more source

Three Complete Mitochondrial Genomes of Orestes guangxiensis, Peruphasma schultei, and Phryganistria guangxiensis (Insecta: Phasmatodea) and Their Phylogeny

open access: yesInsects, 2021
Insects of the order Phasmatodea are mainly distributed in the tropics and subtropics and are best known for their remarkable camouflage as plants. In this study, we sequenced three complete mitochondrial genomes from three different families: Orestes ...
Ke-Ke Xu   +6 more
doaj   +1 more source

Nucleotide sequences of mitochondrial cytochrome b gene for phylogeny of some species of Rodentia

open access: yesBioscience Journal, 2023
Order Rodentia contains approximately half of all living mammalian species. Most of the living species diversity within rodents is within five monophyletic radiations: Hystricognathi, Sciuridae, Geomyoidea, Dipodidae, and Muroidea.
Lamiaa Elsayed Mokhtar Deef
doaj   +1 more source

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