Results 111 to 120 of about 55,792 (268)

Family C of Short Interspersed Elements in the Genomes of Lagomorphs: Structure, Evolution, Transcription and Transcript Polyadenylation

open access: yesAnimals
Short Interspersed Elements (SINEs) are eukaryotic non-autonomous retrotransposons that rely on RNA polymerase III (pol III) for transcription. A subset of mammalian SINEs—designated T+ SINEs—harbors a canonical polyadenylation signal (AATAAA), a pol III
Ilia G. Ustyantsev   +4 more
doaj   +1 more source

Links between human LINE-1 retrotransposons and hepatitis virus-related hepatocellular carcinoma

open access: yesFrontiers in Chemistry, 2016
Hepatocellular carcinoma (HCC) accounts for approximately 80% of liver cancers, the third most frequent cause of cancer mortality. The most prevalent risk factors for HCC are infections by hepatitis B or hepatitis C virus. Findings suggest that hepatitis
Tomoyuki eHonda, Tomoyuki eHonda
doaj   +1 more source

Molecular cytogenetic mapping of Cucumis sativus and C. melo using highly repetitive DNA sequences [PDF]

open access: yes, 2010
Chromosomes often serve as one of the most important molecular aspects of studying the evolution of species. Indeed, most of the crucial mutations that led to differentiation of species during the evolution have occurred at the chromosomal level ...
Bang, J.W.   +5 more
core   +3 more sources

Multi‐Omics Insights Into Anthraquinone Biosynthesis in Rheum tanguticum

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Rheum tanguticum is renowned for its medicinal properties, including purgative, anti‐inflammatory and hepatoprotective effects, primarily attributed to anthraquinones (AQs). However, the molecular mechanisms of AQs biosynthesis have largely been hindered by insufficient genomic resources and functional genomics investigations.
Shuo Zhao   +6 more
wiley   +1 more source

Hypermethylated LTR retrotransposon exhibits enhancer activity

open access: yesEpigenetics, 2017
LTR retrotransposons are repetitive DNA elements comprising ∼10% of the human genome. They are silenced by hypermethylation of cytosines in CpG dinucleotides and are considered parasitic DNA serving no useful function for the host genome.
Tianxiang Hu   +5 more
doaj   +1 more source

Citrus and Prunuscopia-like retrotransposons

open access: yesTheoretical and Applied Genetics, 1999
Many of the world's most important citrus cultivars ("Washington Navel", satsumas, clementines) have arisen through somatic mutation. This phenomenon occurs fairly often in the various species and varieties of the genus.The presence of copia-like retrotransposons has been investigated in fruit trees, especially citrus, by using a PCR assay designed to ...
Asins, María J.   +3 more
openaire   +3 more sources

A Near Telomere‐to‐Telomere Genome of Belamcanda chinensis Provides Insights Into Genome Evolution and the Biosynthesis of Characteristic Isoflavones

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Belamcanda chinensis is a non‐leguminous medicinal plant rich in bioactive isoflavones; however, the lack of a high‐quality reference genome has limited elucidation of its isoflavone biosynthetic and modification network. Here, we present the first near telomere‐to‐telomere genome assembly of B.
Yuan‐Yuan Wang   +10 more
wiley   +1 more source

MTV sings jubilation for telomere biology in Drosophila

open access: yesFly, 2018
Telomere protects the ends of linear chromosomes. Telomere dysfunction fuels genome instability that can lead to diseases such as cancer. For over 30 years, Drosophila has fascinated the field as the only major model organism that does not rely on the ...
Lin Cheng, Ming Cui, Yikang S. Rong
doaj   +1 more source

Pivotal Impacts of Retrotransposon Based Invasive RNAs on Evolution

open access: yesFrontiers in Microbiology, 2017
RNAs have long been described as the mediators of gene expression; they play a vital role in the structure and function of cellular complexes. Although the role of RNAs in the prokaryotes is mainly confined to these basic functions, the effects of these ...
Laleh Habibi, Hamzeh Salmani
doaj   +1 more source

Disruption of Asparagine Synthetase Is Associated to Increased Biomass in Lotus japonicus

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Asparagine (Asn) constitutes the major form of nitrogen translocated within Lotus japonicus plants. In this work we use knock‐out (KO) LORE1 mutants‐deficient in the asparagine synthetase gene (LjASN1), which is the most highly expressed ASN gene in plants grown under non‐symbiotic (NS) conditions, but much less expressed under symbiotic (S ...
Sara Rosa‐Téllez   +5 more
wiley   +1 more source

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