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Current Chromosomes News and Events

Current Chromosomes News and Events, Chromosomes News Articles.
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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)
Cancer drugs cause large cells that resist treatment; scientist aims to stop it
Fueled by genetic changes due to cancer therapy itself, rogue cells may become very large with twice or quadruple the number of chromosomes found in healthy cells. (2020-05-28)
Breaking up is hard to do (especially for sex chromosomes)
A team of scientists at the Sloan Kettering Institute has discovered how the X and Y chromosomes find one another, break, and recombine during meiosis even though they have little in common. (2020-05-28)
Exchange of arms between chromosomes using molecular scissors
The CRISPR/Cas molecular scissors work like a fine surgical instrument and can be used to modify genetic information in plants. (2020-05-26)
Cell reproduction dogma challenged
Meiosis is essential to sexual reproduction. For almost 15 years, it has been commonly held that retinoic acid, a molecule derived from vitamin A, triggers meiosis in mammalian germ cells. (2020-05-22)
How small chromosomes compete with big ones for a cell's attention
Scientists at the Sloan Kettering Institute have solved the puzzle of how small chromosomes ensure that they aren't skipped over during meiosis, the process that makes sperm and egg. (2020-05-06)
New technique delivers complete DNA sequences of chromosomes inherited from mother and father
An international team of scientists led by the University of Adelaide's Davies Research Centre has shown that it is possible to disentangle the DNA sequences of the chromosomes inherited from the mother and the father, to create true diploid genomes from a single individual. (2020-05-06)
How gene flow between species influences the evolution of Darwin's finches
Despite the traditional view that species do not exchange genes by hybridisation, recent studies show that gene flow between closely related species is more common than previously thought. (2020-05-04)
Discovered the physiological mechanisms underlying the most common pediatric Leukemia
Researchers from the Josep Carreras Leukaemia Research Institute unveil the mechanisms that lead to hyperdiploid Acute Lymphoblastic Leukemia, Hyper D-ALL, the most common pediatric B-cell Leukaemia. (2020-04-23)
The basis of glyphosate resistance in amaranth
This work reveals the unique genomic content and structural organization of an extrachromosomal circular DNA replicon in Amaranth plants, with implications for the advancement of crop breeding and our understanding of the evolution of herbicide resistance. (2020-04-23)
Promiscuity in the Paleozoic: Researchers uncover clues about vertebrate evolution
By looking at the DNA of living animals, researchers from the Okinawa Institute of Science and Technology Graduate University, alongside an international team of collaborators, have revealed early events in vertebrate evolution, including how jawed vertebrates arose from the mating of two different species of primitive fish half a billion years ago. (2020-04-20)
Single cell division error may be responsible for complexity in cancer genomes
A single error in cell division related to the formation of a chromosome bridge can trigger a cascade of mutational events, rapidly generating many of the defining features of cancer genomes, a new study suggests. (2020-04-16)
Why do so many pregnancies and in vitro fertilization attempts fail?
Scientists have created a mathematical model that can help explain why so many pregnancies and in vitro fertilization attempts fail. (2020-04-13)
New test may help more couples understand why they experience multiple miscarriages
Approximately 5% of women experience two or more miscarriages, a condition known as recurrent pregnancy loss (RPL). (2020-04-09)
Bayreuth geneticists discover regulatory mechanism of chromosome inheritance
In the course of every single cell division, the genetic information on the chromosomes must be distributed equally between the newly developing daughter cells. (2020-04-09)
Single mutation leads to big effects in autism-related gene
A new study in Neuron offers clues to why autism spectrum disorder (ASD) is more common in boys than in girls. (2020-04-02)
Sturgeon genome sequenced
Sturgeons lived on earth already 300 million years ago and yet their external appearance seems to have undergone very little change. (2020-03-30)
A critical enzyme for sperm formation could be a target for treating male infertility
Researchers led by Jeremy Wang of the University of Pennsylvania School of Veterinary Medicine have identified an enzyme essential for the process of male meiosis, the type of cell division that produces sperm. (2020-03-25)
Scientists reveal how proteins team up to repair DNA
Scientists have revealed an important mechanism in the repair of DNA double-strand breaks, according to new research published today in eLife. (2020-03-24)
Zigzag DNA
How the cell organizes DNA into tightly packed chromosomes. Nature publication by Delft University of Technology and EMBL Heidelberg. (2020-03-04)
New insights into evolution: Why genes appear to move around
Scientists at Uppsala University have proposed an addition to the theory of evolution that can explain how and why genes move on chromosomes. (2020-03-04)
Why do men -- and other male animals -- tend to die younger? It's all in the Y chromosome
Males of most animal species die earlier than females because their smaller Y chromosome is unable to protect an unhealthy X chromosome, research suggests. (2020-03-03)
GPS for chromosomes: Reorganization of the genome during development
The spatial arrangement of genetic material within the cell nucleus plays an important role in the development of an organism. (2020-02-28)
Male-killing bacteria linked to butterfly color changes
Like many poisonous animals, the African monarch butterfly's orange, white and black pattern warns predators that it is toxic. (2020-02-28)
Extra chromosomes in cancers can be good or bad
Extra copies of chromosomes are typical in cancerous tumor cells, but researchers taking a closer look find that some extra copies promote cancer growth while others actually inhibit cancer metastasis. (2020-02-24)
SR-FACT microscopy reveals the landscape of the cellular organelle interactome
We developed super-resolution fluorescence-assisted diffraction computational tomography(SR-FACT), which combines three-dimensional optical diffraction tomography with two-dimensional fluorescence Hessian structured illumination microscopy. (2020-02-17)
New research shows how the malaria parasite grows and multiplies
Scientists have made a major breakthrough in understanding how the parasite that causes malaria is able to multiply at such an alarming rate, which could be a vital clue in discovering how it has evolved, and how it can be stopped. (2020-02-11)
New repair mechanism for DNA breaks
Researchers from the University of Seville and the Andalusian Centre of Molecular Biology and Regenerative Medicine (CABIMER) have identified new factors that are necessary for the repair of these breaks. (2020-02-10)
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