Results 31 to 40 of about 861,603 (331)

Large-Scale Analysis of X Inactivation Variations between Primed and Naïve Human Embryonic Stem Cells

open access: yesCells, 2022
X chromosome inactivation is a mammalian dosage compensation mechanism, where one of two X chromosomes is randomly inactivated in female cells. Previous studies have suggested that primed human embryonic stem cells (hESCs) maintain an eroded state of the
Roni Sarel-Gallily, Nissim Benvenisty
doaj   +1 more source

Detectable chromosome X mosaicism in males is rarely tolerated in peripheral leukocytes

open access: yesScientific Reports, 2021
Age-related male Y and female X chromosome mosaicism is commonly observed in large population-based studies. To investigate the frequency of male X chromosome mosaicism, we scanned for deviations in chromosome X genotyping array intensity data in a ...
Weiyin Zhou   +5 more
doaj   +1 more source

Mechanics and dynamics of X-chromosome pairing at X inactivation [PDF]

open access: yes, 2008
At the onset of X-chromosome inactivation, the vital process whereby female mammalian cells equalize X products with respect to males, the X chromosomes are colocalized along their Xic (X-inactivation center) regions. The mechanism inducing recognition
A Wutz   +24 more
core   +4 more sources

X chromosome control of meiotic chromosome synapsis in mouse inter-subspecific hybrids. [PDF]

open access: yesPLoS Genetics, 2014
Hybrid sterility (HS) belongs to reproductive isolation barriers that safeguard the integrity of species in statu nascendi. Although hybrid sterility occurs almost universally among animal and plant species, most of our current knowledge comes from the ...
Tanmoy Bhattacharyya   +8 more
doaj   +1 more source

Specific staining of human chromosomes in Chinese hamster x man hybrid cell lines demonstrates interphase chromosome territories [PDF]

open access: yes, 1985
In spite of Carl Rabl's (1885) and Theodor Boveri's (1909) early hypothesis that chromosomes occupy discrete territories or domains within the interphase nucleus, evidence in favor pf this hypothesis has been limited and indirect so far in higher plants ...
AB Murray   +34 more
core   +1 more source

Clinical and genetic characterisation of dystrophin-deficient muscular dystrophy in a family of Miniature Poodle dogs [PDF]

open access: yes, 2018
Four full-sibling intact male Miniature Poodles were evaluated at 4–19 months of age. One was clinically normal and three were affected. All affected dogs were reluctant to exercise and had generalised muscle atrophy, a stiff gait and a markedly elevated
A Aartsma-Rus   +63 more
core   +6 more sources

A case of acute lymphoblastic leukemia with additional chromosomes X and 5 associated with a Philadelphia chromosome in the bone marrow

open access: yesTurkish Journal of Hematology, 2010
We report herein a very rare case of acute lymphoblastic leukemia having a chromosomal constitution of 48,XY,+X,+5,t(9;22)(q34;q11) in the bone marrow.
Burak Durmaz   +5 more
doaj   +3 more sources

Partial dosage compensation in Strepsiptera, a sister group of beetles. [PDF]

open access: yes, 2015
Sex chromosomes have evolved independently in many different taxa, and so have mechanisms to compensate for expression differences on sex chromosomes in males and females. Different clades have evolved vastly different ways to achieve dosage compensation,
Bachtrog, Doris, Mahajan, Shivani
core   +2 more sources

Global analysis of X-chromosome dosage compensation

open access: yesJournal of Biology, 2006
Background Drosophila melanogaster females have two X chromosomes and two autosome sets (XX;AA), while males have a single X chromosome and two autosome sets (X;AA).
Malley James D   +8 more
doaj   +1 more source

The human inactive X chromosome modulates expression of the active X chromosome [PDF]

open access: yesCell Genomics, 2021
SummaryResearchers have presumed that the “inactive” X chromosome (Xi) has little impact, in trans, on the “active” X (Xa). To test this, we quantified Xi and Xa gene expression in individuals with one Xa and zero to three Xi’s. Our linear modeling revealed modular Xi and Xa transcriptomes and significant Xi-driven expression changes for 38% (162/423 ...
Muenke   +22 more
openaire   +4 more sources

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