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Current Chromosomes News and Events, Chromosomes News Articles.
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The ancient Neanderthal hand in severe COVID-19
Genetic variants that leave their carrier more susceptible to severe COVID-19 are inherited from Neanderthals, finds a new study published in Nature. (2020-09-30)
The male Y chromosome does more than we thought
While the Y chromosome's role was believed to be limited to the functions of the sexual organs, an University of Montreal's scientist has shown that it impacts the functions of other organs as well. (2020-09-25)
Early admixture with humans led to Y chromosome replacement in late Neanderthals
In one of the first studies to comprehensively analyze Y chromosomes of humans' two closest relatives, Denisovans and Neanderthals, researchers report what prior studies have suggested: early gene flow events between archaic and modern humans led to the eventual replacement of archaic Neanderthal Y chromosomes by introgressed Homo sapiens Y chromosomes. (2020-09-24)
Y chromosomes of Neandertals and Denisovans now sequenced
An international research team led by Martin Petr and Janet Kelso of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, has determined Y chromosome sequences of three Neandertals and two Denisovans. (2020-09-24)
Unraveling the genome in 3D-space
Proper folding of extremely long chromosomal DNA molecules is crucial for the correct functioning of the cell. (2020-09-23)
Genome duplications as evolutionary adaptation strategy
Genome duplications play a major role in the development of forms and structures of plant organisms and their changes across long periods of evolution. (2020-09-23)
Unlocking the secrets of plant genomes in high resolution
Resolving genomes, particularly plant genomes, is a very complex and error-prone task. (2020-09-21)
Algorithms uncover cancers' hidden genetic losses and gains
Limitations in DNA sequencing technology make it difficult to detect some major mutations often linked to cancer, such as the loss or duplication of parts of chromosomes. (2020-09-17)
Structure of 'immortality protein' now better understood
A key role in studying the telomerase of Hansenula polymorpha was played by KFU's nuclear magnetic resonance spectrometer. (2020-09-10)
The birth of a male sex chromosome in Atlantic herring
The evolution of sex chromosomes is of crucial importance in biology as it stabilises the mechanism underlying sex determination and usually results in an equal sex ratio. (2020-09-09)
Inheritance in plants can now be controlled specifically
A new application of the CRISPR/Cas molecular scissors promises progress in crop cultivation. (2020-09-07)
Cell division: Cleaning the nucleus without detergents
A team of researchers, spearheaded by the Gerlich lab at IMBA, has uncovered how cells remove unwanted components from the nucleus following mitosis. (2020-09-03)
Ultra-processed food consumption is associated with chromosomal changes linked to biological ageing
A new study has shed light on the link between the consumption of ultra-processed foods (UPF) and the shortening of telomeres; sections of chromosomes that can be used as a marker of biological age. (2020-08-31)
Genetics of the tree of life
The African baobab tree (Adansonia digitata) is called the tree of life. (2020-08-27)
Female chromosomes offer resilience to Alzheimer's
Women live longer than men with Alzheimer's because their sex chromosomes give them genetic protection from the ravages of the disease. (2020-08-26)
New study shows evolutionary breakdown of 'social' chromosome in ants
Scientists from Queen Mary University of London have found that harmful mutations accumulating in the fire ant social chromosome are causing its breakdown. (2020-08-25)
Accumulating extra genome copies may protect fly brain cells during aging
Scientists have discovered a novel anti-aging defence in the brain cells of adult fruit flies: producing extra copies of the genome, according to a new study published today in eLife. (2020-08-25)
Survival of the fit-ish
It can be hard to dispute the common adage 'survival of the fittest'. (2020-08-17)
Study reveals how two sex chromosomes communicate during female embryo development
Researchers at Massachusetts General Hospital (MGH) have solved a mystery that has long puzzled scientists: How do the bodies of female humans and all other mammals decide which of the two X chromosomes it carries in each cell should be active and which one should be silent? (2020-08-17)
The CNIO pave the way for a future gene therapy to reverse pulmonary fibrosis associated with ageing
''Our results indicate that a new therapy may be developed to prevent the development of pulmonary fibrosis associated with ageing,'' says CNIO's Maria Blasco, principal investigator of the study * Lung tissue of patients with pulmonary fibrosis does not regenerate because the cells involved in lung generation have damaged telomeres, the ends of the chromosomes. (2020-08-10)
Biology blurs line between sexes, behaviors
Biological sex is typically understood in binary terms: male and female. (2020-08-10)
Why the 'wimpy' Y chromosome hasn't evolved out of existence
The Y chromosome has shrunken drastically over 200 million years of evolution. (2020-08-06)
New genome mapper is like "upgrading from dial-up to fibre-optic"
Researchers describe the first technology able to visualize hundreds to potentially thousands of genomes at the same time under the microscope. (2020-07-27)
Researchers use cell imaging and mathematical modeling to understand cancer progression
Using a combination of experiments and mathematical modeling, a team of researchers from the Virginia Tech Department of Biological Sciences in the College of Science and the Fralin Life Sciences Institute are beginning to unravel the mechanisms that lie behind tetraploidy - a chromosomal abnormality that is often found in malignant tumors. (2020-07-24)
Proteins -- and labs -- coming together to prevent Rett syndrome
Two labs investigated whether the disruption of one protein's condensate-forming ability contributes to Rett syndrome. (2020-07-22)
NIH study shows highly reproducible sex differences in aspects of human brain anatomy
A scientific analysis of more than 2,000 brain scans found evidence for highly reproducible sex differences in the volume of certain regions in the human brain. (2020-07-20)
NHGRI researchers generate complete human X chromosome sequence
Researchers at the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH) have produced the first end-to-end DNA sequence of a human chromosome. (2020-07-14)
Unraveling the mystery of wheat herbicide tolerance
Genetically speaking, the loaf of bread you stress-baked during the COVID-19 shutdown is more complex than you think. (2020-07-09)
Abnormal cells in early-stage embryos might not preclude IVF success
The presence of an abnormal number of chromosomes in the genetic profile of early-stage embryos may be far more common - and potentially less threatening - during normal human development than is currently appreciated, according to new research from Johns Hopkins University biologists. (2020-07-08)
Protein linked to cancer acts as a viscous glue in cell division
The protein PRC1, a telltale sign in many cancer types including prostate, ovarian, and breast cancer, act as a ''viscous glue'' during cell division, precisely controlling the speed at which two sets of DNA are separated as a single cell divides. (2020-07-07)
New protein complex gets chromosomes sorted
Researchers from the University of Tsukuba have identified a novel protein complex that regulates Aurora B localization to ensure that chromosomes are correctly separated during cell division. (2020-06-26)
Scientists create program that finds synteny blocks in different animals
Scientists developed a software tool that makes it possible to quickly and efficiently find similar parts in the genomes of different animals, which is essential for understanding how closely related two species are, and how far they have evolved from their common ancestor. (2020-06-23)
Study identifies mechanism affecting X chromosome that could lead to new disease therapies
Learning how to inactivate and reactivate an X chromosome would have important implications for medicine. (2020-06-12)
Sex differences in participation in large-scale genetic studies may affect results
An international group of researchers have found differences in the characteristics that drive men and women to participate in genome-wide association studies, which analyse genetic variants in different individuals to see if any are associated with a trait or disease. (2020-06-07)
Discovery of a novel gene involved in DNA damage repair and male fertility
A research group from the Institute of Molecular Embryology and Genetics (IMEG) at Kumamoto University, Japan has discovered that the gene C19ORF57 plays a critical role in meiosis. (2020-06-04)
New studies show how DNA crossovers can drive healthy, abnormal sperm, egg cell division
Human genetic diversity wouldn't be possible without DNA crossovers in egg and sperm cells. (2020-06-04)
Tracking cancer's immortality factor
Canadian researchers discover how a key cancer mutation activates telomerase, the 'anti-aging enzyme' that makes tumour cells immortal. (2020-06-03)
Process behind the organ-specific elimination of chromosomes in plants unveiled
Commonly, each somatic cell in an organism holds the same amount of DNA. (2020-06-02)
When determining sex, exceptions are the rule
Thanks to new genomic data, long-held theories on sex chromosome evolution are now being tested against empirical evidence from nature -- often with surprising results. (2020-06-02)
Genetic cause of difference in sexual development uncovered
Researchers at the Francis Crick Institute, the Institut Pasteur and their clinical collaborators have identified a cause of testicular tissue developing in people with female chromosomes. (2020-06-01)
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