Results 21 to 30 of about 81,508 (252)

Genome rearrangements with duplications [PDF]

open access: yesBMC Bioinformatics, 2010
Finding sequences of evolutionary operations that transform one genome into another is a classical problem in comparative genomics. While most of the genome rearrangement algorithms assume that there is exactly one copy of each gene in both genomes, this does not reflect the biological reality very well - most of the studied genomes contain duplicated ...
openaire   +2 more sources

Programmed genome rearrangements in ciliates [PDF]

open access: yesCellular and Molecular Life Sciences, 2020
AbstractCiliates are a highly divergent group of unicellular eukaryotes with separate somatic and germline genomes found in distinct dimorphic nuclei. This characteristic feature is tightly linked to extremely laborious developmentally regulated genome rearrangements in the development of a new somatic genome/nuclei following sex.
Iwona Rzeszutek   +2 more
openaire   +3 more sources

Negative Regulators of an RNAi-Heterochromatin Positive Feedback Loop Safeguard Somatic Genome Integrity in Tetrahymena

open access: yesCell Reports, 2017
RNAi-mediated positive feedback loops are pivotal for the maintenance of heterochromatin, but how they are downregulated at heterochromatin-euchromatin borders is not well understood.
Jan H. Suhren   +5 more
doaj   +1 more source

Mechanisms underlying genome instability mediated by formation of foldback inversions in Saccharomyces cerevisiae

open access: yeseLife, 2020
Foldback inversions, also called inverted duplications, have been observed in human genetic diseases and cancers. Here, we used a Saccharomyces cerevisiae genetic system that generates gross chromosomal rearrangements (GCRs) mediated by foldback ...
Bin-zhong Li   +2 more
doaj   +1 more source

Repeats of Unusual Size in Plant Mitochondrial Genomes: Identification, Incidence and Evolution

open access: yesG3: Genes, Genomes, Genetics, 2019
Plant mitochondrial genomes have excessive size relative to coding capacity, a low mutation rate in genes and a high rearrangement rate. They also have abundant non-tandem repeats often including pairs of large repeats which cause isomerization of the ...
Emily L. Wynn, Alan C. Christensen
doaj   +1 more source

Heat stress-induced transposon activation correlates with 3D chromatin organization rearrangement in Arabidopsis

open access: yesNature Communications, 2020
Heat stress can activate heterochromatin-associated transposon elements (TEs). Here, the authors show that heat stress leads to global rearrangement of 3D genome and TEs activation closely correlates with 3D chromatin organization rearrangement in ...
Linhua Sun   +8 more
doaj   +1 more source

MCMC genome rearrangement [PDF]

open access: yesBioinformatics, 2003
Abstract Motivation: As more and more genomes have been sequenced, genomic data is rapidly accumulating. Genome-wide mutations are believed more neutral than local mutations such as substitutions, insertions and deletions, therefore phylogenetic investigations based on inversions, transpositions and inverted transpositions are less ...
openaire   +2 more sources

Core-genome scaffold comparison reveals the prevalence that inversion events are associated with pairs of inverted repeats

open access: yesBMC Genomics, 2017
Background Genome rearrangement describes gross changes of chromosomal regions, plays an important role in evolutionary biology and has profound impacts on phenotype in organisms ranging from microbes to humans.
Dan Wang   +4 more
doaj   +1 more source

An intelligent recognition method of chromosome rearrangement patterns based on information entropy

open access: yesScientific Reports, 2022
Chromosome rearrangements play an important role in the speciation of plants and animals, and the recognition of chromosome rearrangement patterns is helpful to elucidate the mechanism of species differentiation at the chromosome level.
Fushun Wang   +6 more
doaj   +1 more source

Dynamics of genome rearrangement in bacterial populations.

open access: yesPLoS Genetics, 2008
Genome structure variation has profound impacts on phenotype in organisms ranging from microbes to humans, yet little is known about how natural selection acts on genome arrangement.
Aaron E Darling   +2 more
doaj   +1 more source

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