X chromosome News and Research

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Unraveling the Complexities of X Chromosome Inheritance

A new study published in Nature Genetics by the Lymphoid Development Group at the MRC Laboratory of Medical Sciences has reveals that the contribution of cells expressing maternal or paternal X chromosomes can be selectively skewed in different parts of the body.

26 Jul 2024

Study Uncovers Link Between Genetic Variants and Mosaic Loss of X Chromosome in Aging Women

Researchers have identified inherited genetic variants that may predict the loss of one copy of a woman's two X chromosomes as she ages, a phenomenon known as mosaic loss of chromosome X, or mLOX.

13 Jun 2024

Genetic Clues Unveil New Insights into Restless Leg Syndrome

Scientists have discovered genetic clues to the cause of restless leg syndrome, a condition common among older adults.

6 Jun 2024

Unveiling the Diversity and Evolutionary Dynamics of Centromeres Across Primates

A genomic study of human and selected nonhuman primate centromeres has revealed their unimaginable diversity and speed of evolutionary change.

4 Apr 2024

Mosaic Turner Syndrome Identified in 2500-Year-Old Briton: Ancient DNA Reveals Hidden History

Researchers at the Francis Crick Institute, working with University of Oxford, University of York and Oxford Archaeology, have developed a new technique to measure the number of chromosomes in ancient genomes more precisely, using it to identify the first prehistoric person with mosaic Turner syndrome (characterized by one X chromosome instead of two [XX]), who lived about 2500 years ago.

16 Jan 2024

First Complete View of Y Chromosome's Code Sequenced

More than 100 experts from across the world, including those from Johns Hopkins University, have worked together to completely sequence the chromosome linked to male development, the final unsolved component of the human genome.

24 Aug 2023

Study Provides New Insight Into the Evolutionary History of Gorillas

An international research study led by the University of Vienna (Austria) and the Institute of Evolutionary Biology (IBE) in Barcelona (Spain), recently published in the journal Nature Ecology and Evolution, provides a better insight into the evolutionary history of gorillas.

31 Jul 2023

Loss of the Y Chromosome Impairs Body's Ability to Fight Cancer

According to recent Cedars-Sinai Cancer research, as men age, some of their cells lose the very feature that makes them biological males—the Y chromosome—and this loss impairs the body’s ability to fight cancer.

22 Jun 2023

Large-Scale Phylogenomic Studies Reveal Mysteries of Primate Evolution

Researchers from Zhejiang University, Kunming Institute of Zoology, Northwest University, and Yunnan University, Aarhus University, and BGI-Research have jointly led a series of significant new studies are published in a special issue of the journal Science, and in papers in Nature Ecology & Evolution and Science Advances.

2 Jun 2023

Study Reveals That Transcriptional Buffering Occurs in Rett Syndrome Nerve Cells

Every cell in our body is able to turn genes (DNA) on or off, producing RNA, but when genes are 'turned on' to the wrong level it can result in a variety of health conditions.

3 May 2023

Gene-Silencing Complexes Work Together to Render X Chromosomes Inactive

Two protein complexes are involved in the mysterious process of shutting off one X chromosome in female mammals, according to a new study from RIKEN. This result could aid in the understanding of how specific tumors in women develop.

21 Apr 2023

Decreased viral infection severity in females linked to extra copy of epigenetic regulator

It has long been known that viral infections can be more severe in males than females, but the question as to why has remained a mystery – until possibly now.

20 Mar 2023

Adaptive optics imaging helps visualize the pathogenesis of choroideremia

Researchers at the National Eye Institute (NEI) have demonstrated for the first time how cells across various tissue layers in the eye are impacted in individuals with choroideremia, a rare genetic disorder that causes blindness.

14 Sep 2022

Research identifies the main gene that causes developmental disability syndrome

A single gene that was previously discovered to be the main factor in a rare disease associated with epilepsy, autism, and developmental delay has been named as a key player in the development of healthy neurons.

1 Jul 2022

Unraveling sex determination in Bursaphelenchus nematodes: A path towards pest-control

The mechanisms underlying sex determination in nematodes, commonly known as roundworms, have not been fully understood.

23 Jun 2022

Researchers discover how an “accordion effect” is vital for switching off genes

In a study that changes the fundamentals of what researchers know about gene silencing, WEHI researchers demonstrated how an “accordion effect” is key to switching off genes.

From Walter and Eliza Hall Institute of Medical Research (WEHI) 7 Apr 2022

RNA targeted by small molecule drugs, likely to create new pathways for disease treatment

RNA (ribonucleic acid) is involved in many aspects of human health, and a new study published in the journal Nature provides compelling evidence that RNA could be a promising pharmacological target.

1 Apr 2022

Study explores that extra dosages of genes may lead to surplus X chromosomes

One out of every 500 to 1,000 boys is born with one or more extra X chromosomes, which can cause a variety of symptoms as the extra chromosomes to including infertility, larger breasts, osteoporosis, diabetes, cardiac problems, intellectual incapacity, and cancer.

1 Apr 2022

Scientists examine key mechanisms underlying genomic imprinting

Hereditary diseases, along with cancers and cardiovascular diseases, may be linked to genomic imprinting.

13 Jan 2022

Experts identify first non-coding RNA that controls chromosome loop formation

Recent research carried out by scientists from Massachusetts General Hospital (MGH) reveals that a significant player in the healthy development of female embryos also performs a vital role in controlling the behavior of chromosome loops and gene expression in both sexes.

7 Dec 2021