Results 31 to 40 of about 267,700 (194)

Karyotypic Evolution of the Common and Silverleaf Sunflower Genomes

open access: yesThe Plant Genome, 2009
Silverleaf sunflower ( Torrey and Gray) has been an important source of favorable alleles for broadening genetic diversity and enhancing agriculturally important traits in common sunflower ( L.), and, as the closest living relative of , provides an ...
Adam F. Heesacker   +5 more
doaj   +1 more source

Case report: Optical genome mapping revealed double rearrangements in a male undergoing preimplantation genetic testing

open access: yesFrontiers in Genetics, 2023
Chromosome rearrangement is one of the main causes of abortion. In individuals with double chromosomal rearrangements, the abortion rate and the risk of producing abnormal chromosomal embryos are increased.
Jun Ren   +32 more
doaj   +1 more source

Interstitial deletion 4p15.32p16.1 and complex chromoplexy in a female proband with severe neurodevelopmental delay, growth failure and dysmorphism

open access: yesMolecular Cytogenetics, 2022
Complex chromosomal rearrangements involve the restructuring of genetic material within a single chromosome or across multiple chromosomes. These events can cause serious human disease by disrupting coding DNA and gene regulatory elements via deletions ...
Dong Li   +8 more
doaj   +1 more source

Widespread chromosomal rearrangements preceded genetic divergence in a monitor lizard, Varanus acanthurus (Varanidae) [PDF]

open access: yes, 2023
Chromosomal rearrangements are often associated with local adaptation and speciation because they suppress recombination, and as a result, rearrangements have been implicated in disrupting gene flow.
Dobry, Jason   +14 more
core   +1 more source

Comparative studies of X chromosomes in Cervidae family

open access: yesScientific Reports, 2023
The family Cervidae is the second most diverse in the infraorder Pecora and is characterized by variability in the diploid chromosome numbers among species.
Anastasia A. Proskuryakova   +8 more
doaj   +1 more source

Stimulation of Chromosomal Rearrangements by Ribonucleotides [PDF]

open access: yesGenetics, 2015
AbstractWe show by whole genome sequence analysis that loss of RNase H2 activity increases loss of heterozygosity (LOH) in Saccharomyces cerevisiae diploid strains harboring the pol2-M644G allele encoding a mutant version of DNA polymerase ε that increases ribonucleotide incorporation.
Hailey N, Conover   +9 more
openaire   +2 more sources

The Role of RNA in DNA Breaks, Repair and Chromosomal Rearrangements

open access: yesBiomolecules, 2021
Incorrect reparation of DNA double-strand breaks (DSB) leading to chromosomal rearrangements is one of oncogenesis’s primary causes. Recently published data elucidate the key role of various types of RNA in DSB formation, recognition and repair.
Matvey Mikhailovich Murashko   +5 more
doaj   +1 more source

Dynamic large-scale chromosomal rearrangements fuel rapid adaptation in yeast populations. [PDF]

open access: yesPLoS Genetics, 2013
Large-scale genome rearrangements have been observed in cells adapting to various selective conditions during laboratory evolution experiments. However, it remains unclear whether these types of mutations can be stably maintained in populations and how ...
Shang-Lin Chang   +3 more
doaj   +1 more source

Chromothripsis is a common mechanism driving genomic rearrangements in primary and metastatic colorectal cancer [PDF]

open access: yes, 2011
: BACKGROUND: Structural rearrangements form a major class of somatic variation in cancer genomes. Local chromosome shattering, termed chromothripsis, is a mechanism proposed to be the cause of clustered chromosomal rearrangements and was recently ...
Marlous Hoogstraat   +27 more
core   +1 more source

Comparative cytogenetics in three species of Wood-Warblers (Aves: Passeriformes: Parulidae) reveal divergent banding patterns and chromatic heterogeneity for the W chromosome

open access: yesCaryologia, 2021
Chromosomal rearrangements are an important process in the evolution of species. It is assumed that these rearrangements occur near repetitive sequences and heterochromatic regions.
Alice Lemos Costa   +6 more
doaj  

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