Results 51 to 60 of about 19,506 (210)

Genealogical analyses of multiple loci of litostomatean ciliates (Protista, Ciliophora, Litostomatea) [PDF]

open access: yes, 2012
© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Molecular Phylogenetics and Evolution 66 (2012): 397-411, doi:10.1016/j.ympev.2012.06.024.The class ...
Bourland, William A.   +4 more
core   +1 more source

An improved phylogeny and revised taxonomy of Catillariaceae (Lecanoromycetes, Ascomycota)

open access: yesTAXON, EarlyView.
Abstract The boundaries of the family Catillariaceae have largely remained untested through phylogenetic methods. Recent studies have led to the transfer of several genera previously classified in Catillariaceae to the newly described family Leprocaulaceae. Despite these changes, the distinction between Catillariaceae, Leprocaulaceae, and Catinariaceae
Måns Svensson   +2 more
wiley   +1 more source

Transcriptional organization of the 5.8S ribosomal RNA ristron in Xenopus laevis ribosomal DNA

open access: yesNucleic Acids Research, 1977
Hybridization of purified, 32p-labeled 5.8S ribosomal RNA from Xenopus laevis to fragments generated from X. laevis rDNA by the restriction endonuclease, EcoRI, demonstrates that the 5.8S rRNA cistron lies within the transcribed region that links the 18S and 28S rRNA cistrons.
T A, Walker, N R, Pace
openaire   +3 more sources

Short-term sequence evolution and vertical inheritance of the Naegleria twin-ribozyme group I intron

open access: yesBMC Evolutionary Biology, 2006
Background Ribosomal DNA of several species of the free-living Naegleria amoeba harbors an optional group I intron within the nuclear small subunit ribosomal RNA gene.
De Jonckheere Johan F   +3 more
doaj   +1 more source

Cytogenetic characterisation of the razor shells "Ensis directus" (Conrad, 1843) and "E. minor" (Chenu, 1843) (Mollusca: Bivalvia) [PDF]

open access: yes, 2012
[Abstract] The European razor shell Ensis minor (Chenu 1843) and the American E. directus (Conrad 1843) have a diploid chromosome number of 38 and remarkable differences in their karyotypes: E.
Egea, Emilie   +5 more
core   +2 more sources

Phylogeny, species delimitation and machine learning bridge the gap between DNA sequences and morphology in the lichen genus Arctomia (Arctomiaceae, Ascomycota)

open access: yesTAXON, EarlyView.
Abstract This study investigates species boundaries in the lichen genus Arctomia (Arctomiaceae, Ascomycota) using an integrative approach combining molecular phylogenetics, full Bayesian population delimitation, heuristic and model‐based species delimitation, and supervised machine learning applied to morphological data.
Stefan Ekman   +2 more
wiley   +1 more source

Structural characterization of wild edible Pleurotuscollected from Punjab, India

open access: yesThe Indian Journal of Agricultural Sciences
Oyster mushroom (Pleurotus spp.) belongs to the class Basidiomycetes, family Agaricaceae, commonly known as ‘dhingri’ in India and proliferates naturally on dead, decay wooden logs or trunks of deciduous or coniferous woods in tropical and temperate ...
AMANPREET KAUR, H S SODHI
doaj   +1 more source

Climacocystaceae fam. nov. and Gloeoporellaceae fam. nov., two new families of Polyporales (Basidiomycota)

open access: yesFrontiers in Microbiology, 2023
Polyporales is a diverse group of Agaricomycetes including more than 2,500 species belonging to 255 genera and 18 families. Recently, many studies focused on the classification of Polyporales, but the familial placements of some taxa remain uncertain. In
Shun Liu   +5 more
doaj   +1 more source

c-Myc induced changes in higher order rDNA structure accompany growth factor stimulation of quiescent cells [PDF]

open access: yes, 2007
Human c-Myc is believed to be a high level coordinator of protein synthesis capacity and cell growth rate, capable of activating transcription by all three nuclear RNA Polymerases.
Anthony P. H. Wright   +2 more
core   +1 more source

Yeast Polypeptide Exit Tunnel Ribosomal Proteins L17, L35, and L37 are Necessary to Recruit Late-assembling Factors Required for 27SB Pre-rRNA Processing [PDF]

open access: yes, 2012
Ribosome synthesis involves the coordinated folding and processing of pre-rRNAs with assembly of ribosomal proteins. In eukaryotes, these events are facilitated by trans-acting factors that propel ribosome maturation from the nucleolus to the cytoplasm ...
Babiano González, Reyes   +5 more
core   +1 more source

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