Results 71 to 80 of about 12,098 (230)

Nuclear, mitochondrial and plastid gene phylogenies of Dinophysis miles (Dinophyceae): evidence of variable types of chloroplasts.

open access: yesPLoS ONE, 2011
The Dinophysis genus is an ecologically and evolutionarily important group of marine dinoflagellates, yet their molecular phylogenetic positions and ecological characteristics such as trophic modes remain poorly understood.
Dajun Qiu   +3 more
doaj   +1 more source

Probing complex RNA structures by mechanical force [PDF]

open access: yesEuropean Physical Journal E 12 (2003) 605-615, 2003
RNA secondary structures of increasing complexity are probed combining single molecule stretching experiments and stochastic unfolding/refolding simulations. We find that force-induced unfolding pathways cannot usually be interpretated by solely invoking successive openings of native helices.
arxiv   +1 more source

Protein Coding Low‐Copy rpb2 and ef1‐α Regions Are Viable Fungal Metabarcoding DNA Markers Which Can Supplement ITS for Better Accuracy

open access: yesEcology and Evolution, Volume 15, Issue 4, April 2025.
The study uses prepared mock communities of three unrelated basidiomycete lineages, each containing carefully selected closely related species. Performance of the generally used fungal barcoding region ITS nrDNA is compared with two low‐copy protein coding regions (rpb2 and tef1a).
Vasilii Shapkin   +7 more
wiley   +1 more source

Slip of grip of a molecular motor on a crowded track: Modeling shift of reading frame of ribosome on RNA template [PDF]

open access: yesEPL, vol.114, 68005 (2016), 2016
We develop a stochastic model for the programmed frameshift of ribosomes synthesizing a protein while moving along a mRNA template. Normally the reading frame of a ribosome decodes successive triplets of nucleotides on the mRNA in a step-by-step manner.
arxiv   +1 more source

Plio‐Pleistocene decline of mesic forest underpins diversification in a clade of Australian Panesthia cockroaches

open access: yesSystematic Entomology, Volume 50, Issue 2, Page 253-268, April 2025.
The diversification of the Australian second‐wave Panesthia is strongly tied to the fragmentation of mesic forest from the Pliocene onwards. The Lord Howe Island cockroach Panesthia lata reached the island in a single colonization event and subsequently expanded its niche.
Maxim W. D. Adams   +12 more
wiley   +1 more source

Evaluation of RNA extraction methods in rice and their application in expression analysis of resistance genes against Magnaporthe oryzae

open access: yesBiotechnology & Biotechnological Equipment, 2017
Extraction of RNA of high quality and integrity is essential for gene expression studies and all downstream RNA-based techniques. The leaves of 16 merit Malaysian rice varieties were used to isolate total RNA using five different methods.
Parisa Azizi   +7 more
doaj   +1 more source

ITSxpress: Software to rapidly trim internally transcribed spacer sequences with quality scores for marker gene analysis [version 1; referees: 2 approved]

open access: yesF1000Research, 2018
The internally transcribed spacer (ITS) region between the small subunit ribosomal RNA gene and large subunit ribosomal RNA gene is a widely used phylogenetic marker for fungi and other taxa.
Adam R. Rivers   +4 more
doaj   +1 more source

Insights into the phylogeny of the ciliate of class Colpodea based on multigene data

open access: yesEcology and Evolution, 2022
In the class Colpodea, there are many unresolved evolutionary relationships among taxa. Here, we report 30 new sequences including SSU‐rRNA, ITS1‐5.8S‐ ITS2 rRNA, and the mitochondrial small subunit ribosomal RNA (mtSSU‐rRNA) genes of five colpodeans ...
Bailin Li   +7 more
doaj   +1 more source

Molecular interactions between the constituents of small ribosomal subunit [PDF]

open access: yesarXiv, 2012
Availability of high-resolution crystal structures of ribosomal subunits of different species opens a route to investigate about molecular interactions between its constituents and stabilization strategy. Structural analysis of the small ribosomal subunit shows that primary binder proteins are mainly employed in stabilizing the folded ribosomal RNA by ...
arxiv  

Physical modeling of ribosomes along messenger RNA: estimating kinetic parameters from ribosome profiling experiments using a ballistic model [PDF]

open access: yesarXiv, 2022
Gene expression consists in the synthesis of proteins from the information encoded on DNA. One of the two main steps of gene expression is the translation of messenger RNA (mRNA) into polypeptide sequences of amino acids. Here, by taking into account mRNA degradation, we model the motion of ribosomes along mRNA with a ballistic model where particles ...
arxiv  

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