Results 31 to 40 of about 6,305,601 (337)

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

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

Deciphering the Role of the Barr Body in Malignancy: An insight into head and neck cancer

open access: yesSultan Qaboos University Medical Journal, 2018
X chromosome inactivation is the epitome of epigenetic regulation and long non-coding ribonucleic acid function. The differentiation status of cells has been ascribed to X chromosome activity, with two active X chromosomes generally only observed in ...
Deepti Sharma   +4 more
doaj   +1 more source

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

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

Stochastic gene expression and chromosome interactions in protecting the human active X from silencing by XIST

open access: yesNucleus, 2021
Mammals use X chromosome inactivation to compensate for the sex difference in numbers of X chromosomes. A relatively unexplored question is how the active X is protected from inactivation by its own XIST gene, the long non-coding RNA, which initiates ...
Barbara R. Migeon
doaj   +1 more source

Staged developmental mapping and X chromosome transcriptional dynamics during mouse spermatogenesis

open access: yesNature Communications, 2018
Male gametes are generated through a specialised differentiation pathway involving a series of developmental transitions that are poorly characterised at the molecular level.
Christina Ernst   +4 more
semanticscholar   +1 more source

X-Chromosome Inactivation: A Crossroads Between Chromosome Architecture and Gene Regulation.

open access: yesAnnual Review of Genetics, 2018
In somatic nuclei of female therian mammals, the two X chromosomes display very different chromatin states: One X is typically euchromatic and transcriptionally active, and the other is mostly silent and forms a cytologically detectable heterochromatic ...
Rafael Galupa, E. Heard
semanticscholar   +1 more source

Variation of autosomes and X chromosome STR in breast cancer and gynecological cancer tissues

open access: yesOpen Life Sciences, 2017
This study analyses 1000 cases of patients with breast cancer and 2000 cases of patients with gynecological cancer (1000 cases of malignant tumor, 1000 cases of benign tumors), where breast cancer and malignant tumor patients comprise the observation ...
Hou Youxiang   +2 more
doaj   +1 more source

X Chromosome Evolution in Cetartiodactyla [PDF]

open access: yesGenes, 2017
The phenomenon of a remarkable conservation of the X chromosome in eutherian mammals has been first described by Susumu Ohno in 1964. A notable exception is the cetartiodactyl X chromosome, which varies widely in morphology and G-banding pattern between species.
Alexey I. Makunin   +15 more
openaire   +6 more sources

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