One way genetic mutations occur during formation of eggs and sperm
Investigators have employed mutant mice to study how the accumulation of genetic errors is managed during egg and sperm formation......»»
Asexual reproduction usually leads to a lack of genetic diversity. Not for these ants
Genetic diversity is essential to the survival of a species. It's easy enough to maintain if a species reproduces sexually; an egg and a sperm combine genetic material from two creatures into one, forming a genomically robust offspring with two disti.....»»
Protecting one of the world"s most threatened marine animals
Researchers from Murdoch University's Harry Butler Institute have employed the latest genetic techniques to uncover critical breeding and reproductive knowledge about one of the world's most threatened marine animals—the sawfish......»»
Metabolomic insights into soybean defense strategies against diverse pathogens
Soybean, as a globally critical leguminous crop, faces continuous threats from different pathogens, which profoundly affect global production. Although the genetic interactions between soybean and pathogens have attracted extensive attention and res.....»»
Surprising ring sheds light on galaxy formation
The question of what triggers the extremely rapid star formation within Hyper Luminous Infrared Galaxies (HyLIRGs), as yet unknown, is of much interest to guide our understanding of the formation and evolution of galaxies in the universe. A new photo.....»»
Zooplankton study challenges traditional views of evolution
In new research, Arizona State University scientists and their colleagues investigated genetic changes occurring in a naturally isolated population of the water flea, Daphnia pulex. This tiny crustacean, barely visible to the naked eye, plays a cruci.....»»
Genetic cloaking of healthy cells opens door to universal blood cancer therapy
Blood stem cells are being engineered to protect them from lethal therapies. Enlarge (credit: Aurich Lawson) Know your enemy, know yourself. It's a centuries-old strategy. But even in the present-day war against cancer,.....»»
Much of Neanderthal genetic diversity came from modern humans
Neanderthals' low diversity means their population was even smaller than we thought. Enlarge (credit: Halamka) The basic outline of the interactions between modern humans and Neanderthals is now well established. The two.....»»
2023 Rolling Hills Estates landslide likely began the winter before
Californians are familiar with landslides that occur around storms, when saturated soil and rock loses its grip and slips from its perch on the substrate. These types of landslides can be triggered by intense rainfall, and incoming storms can be a wa.....»»
Selection processes play dominant role in shaping coexisting assemblages of trees and soil fungi: Study
Community assembly is shaped by four main processes: selection—fitness differences between organisms; dispersal—organisms' movement across space; drift—unpredictable variation in abundance; and diversification—new genetic variants. However, w.....»»
Insight into one of life"s earliest ancestors revealed in new study
An international team of researchers led by the University of Bristol has shed light on Earth's earliest ecosystem, showing that within a few hundred million years of planetary formation, life on Earth was already flourishing......»»
Team develops the first cell-free system in which genetic information and metabolism work together
The capacity of all living systems to develop, organize and sustain themselves is based upon a cyclical process in which genes and metabolism interact in parallel. While genes encode the components of metabolism, metabolism provides the energy and bu.....»»
Canadian wildfire smoke dispersal worsened by coincident cyclones, study suggests
Wildfires are unplanned and unpredictable threats to Earth; while we may intuitively relate them to extreme heat at lower latitudes, they are known to occur in Arctic regions, such as those recently ravaging Russia......»»
Team investigates chemical modifications to gain deeper insights into genetic regulation mechanisms
University of North Carolina at Chapel Hill researchers have determined whether a specific chemical modification of a protein that packages the genome called a histone affects gene activity and cell proliferation, according to the paper, "Drosophila.....»»
A new species of extinct crocodile relative rewrites life on the Triassic coastline
The surprising discovery of a new species of extinct crocodile relative from the Triassic Favret Formation of Nevada, U.S., rewrites the story of life along the coasts during the first act of the Age of Dinosaurs......»»
Phage-derived enzyme targets E. faecalis biofilms to mitigate acute graft-versus-host disease
Allogenic hematopoietic cell transplantation (allo-HCT) involves transferring healthy donor stem cells to recipients with conditions such as blood cancer, bone marrow failure, or certain genetic blood disorders. Acute graft-versus-host disease (aGVHD.....»»
Astronomers find the nearest massive black hole, a missing link in massive black hole formation
Newly identified fast-moving stars in the star cluster Omega Centauri provide solid evidence for a central black hole in the cluster. With at least 8,200 solar masses, it is the best candidate for a class of black holes astronomers have long believed.....»»
Tiny TnpB: The next-generation genome editing tool for plants unveiled
Genome editing stands as one of the most transformative scientific breakthroughs of our time. It allows us to dive into the very code of life and make precise modifications. Imagine being able to rewrite the genetic instructions that determine almost.....»»
Team develops new one-step method to make multiple edits to a cell"s genome
Genome editing has become a widely adopted technology to modify DNA in cells, allowing scientists to study diseases in the lab and develop therapies that repair disease-causing mutations. However, with current approaches, it's only possible to edit c.....»»
Diversity in typhoid bacteria linked to higher mortality rates
Worldwide, 20% of the bacterial strains that cause typhoid fever have genetic variations in their external layer, called Vi capsule, that provide higher virulence, higher infectivity and high antibiotic resistance, Cornell researchers have discovered.....»»
Nearby exoplanet has trace amounts of hydrogen sulfide, Webb data suggest
An exoplanet infamous for its deadly weather has been hiding another bizarre feature—it reeks of rotten eggs, according to a new Johns Hopkins University study of data from the James Webb Space Telescope......»»