Results 21 to 30 of about 10,053 (133)
Hypermethylated LTR retrotransposon exhibits enhancer activity [PDF]
Epigenetics, 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. However, hypermethylated LTRs contain enhancer and promoter sequences and can promote tissue-specific transcription
Tianxiang Hu +5 more
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Evolutionary History of LTR Retrotransposon Chromodomains in Plants [PDF]
International Journal of Plant Genomics, 2012 Chromodomain-containing LTR retrotransposons are one of the most successful groups of mobile elements in plant genomes. Previously, we demonstrated that two types of chromodomains (CHDs) are carried by plant LTR retrotransposons. Chromodomains from group I (CHD_I) were detected only in Tcn1-like LTR retrotransposons from nonseed plants such as mosses ...
Anton Novikov +2 more
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Reverse Transcription of Retroviruses and LTR Retrotransposons [PDF]
Microbiology Spectrum, 2015 ABSTRACT The enzyme reverse transcriptase (RT) was discovered in retroviruses almost 50 years ago. The demonstration that other types of viruses, and what are now called retrotransposons, also replicated using an enzyme that could copy RNA into DNA came a few years later.
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De novo identification of LTR retrotransposons in eukaryotic genomes [PDF]
BMC Genomics, 2007 AbstractBackgroundLTR retrotransposons are a class of mobile genetic elements containing two similar long terminal repeats (LTRs). Currently, LTR retrotransposons are annotated in eukaryotic genomes mainly through the conventional homology searching approach.
Kim Sun +4 more
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Birth and Death of LTR-Retrotransposons in Aegilops tauschii. [PDF]
Genetics, 2018 Abstract Dai et al. employed time-dynamic modeling for the insertion rate (birth) and the deletion rate (death) of long terminal repeat retrotransposons (LTR-RTs) in the Aegilops tauschii genome. They found that insertion rates of the 35...
Dai X +6 more
europepmc +6 more sources
Composite non-LTR retrotransposons in hominoid primates [PDF]
Mobile Genetic Elements, 2015 Composite retrotransposons are widely distributed in the plant and animal kingdoms. Some of the most complex of these are found in hominoid primates. SVA, LAVA, PVA and FVA combine simple repeats, Alu fragments, a VNTR (Variable Number of Tandem Repeats) and variable 3' domains, which are, except for PVA, derived from other retrotransposons. Although a
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Journal of Integrative Plant Biology, EarlyView.Pan‐genome analysis reveals that high‐altitude Rhododendron species resist alpine cold stress by rapidly sensing and engaging the chilling response pathway and genes that directly and indirectly protect the plant from UV radiation. Heritable genomic features such as long terminal repeats contribute to the adaptive diversification of Rhododendron ...
Haoyang Zhou +11 more
wiley +1 more source
Simulation-based estimation of branching models for LTR retrotransposons [PDF]
Bioinformatics, 2016 Abstract Motivation LTR retrotransposons are mobile elements that are able, like retroviruses, to copy and move inside eukaryotic genomes. In the present work, we propose a branching model for studying the propagation of LTR retrotransposons in these genomes.
Serge Moulin +4 more
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Genomic variation drives plant flavor diversification
Journal of Integrative Plant Biology, EarlyView.This review explains how genomic variation shapes plant flavor by altering the biosynthetic and regulatory pathways of key attributes like sweetness, acidity, bitterness, piquancy, astringency, and aroma. It also discusses how multi‐omics, AI‐assisted breeding, and gene editing can translate this knowledge into plants with improved flavor, nutrition ...
Huimin Hu +5 more
wiley +1 more source
Site-specific non-LTR retrotransposons
Microbiology Spectrum, 2015 ABSTRACT Although most of non-long terminal repeat (non-LTR) retrotransposons are incorporated in the host genome almost randomly, some non-LTR retrotransposons are incorporated into specific sequences within a target site. On the basis of structural and phylogenetic features, non-LTR retrotransposons are classified into two large groups ...
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