Articles tagged with Genome Evolution
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A Spartan-led team has assembled the most complete picture of the bowfin genome to date, revealing striking similarities between bowfin gas bladder development and human lung development. This breakthrough provides a better model for studying human health and disease, with potential implications for understanding evolutionary history.
Researchers at McGill University have developed a new way to track genetically modified animals using artificial transgenes. The discovery provides a powerful tool for locating and managing escaped or released GM animals.
Researchers discover that gastrin-releasing peptide (GRP) is widely conserved among vertebrates, but the NMB/bombesin system has diversified in some lineages. GRP has evolved independently from a single ancestral homologue and plays a role in regulating energy intake and expenditure in both amphibians and mammals.
An international team found the genetic basis for the seadragon's lack of teeth, leaf-like appendages and sex-determination gene. The research also showed that males care for fertilized eggs until they hatch.
A recent study found that most structural variants in cacao genomes are deleterious, impairing gene function and adapting plants to stressors. However, some variants facilitate adaptation by influencing gene expression, particularly those associated with pathogen resistance genes.
Researchers completed the first genetic sequencing of a Brazilian snake's genome, revealing that most toxin genes likely arose from existing functions in ancestral species. The study identified markers for comparing toxin genes with non-toxic 'ancestral' genes, shedding light on the evolution of venom production.
A new study reconciles the molecular clock with the fossil record of plants by linking older spore-like microfossils to younger plant spores derived from charophyte algae, revealing the evolutionary assembly of the plant regulatory and developmental genome.
A new study published in Genome Biology found that the ability of gut bacteria to produce spores is associated with their adaptation to humans. Bacteria that can produce spores have larger genomes and are less abundant in the gut, while those that cannot have smaller genomes and are more adapted to human hosts.
A new study generated 137 whole-genome sequences from eight Middle Eastern populations, filling a major gap in international genomic projects. The researchers found 4.8 million previously undiscovered genetic variants, which could hold medical relevance.
A study on gymnosperm diversification reveals that gene duplications are linked to major pulses of phenotypic evolution. The researchers found that ecological opportunity and environmental heterogeneity drove a resurgence of gymnosperm diversification since the rise of angiosperms.
A new study reveals genome duplication events in ancient gymnosperms led to the origin of pines and other conifers, enabling them to adapt to changing ecosystems. The research suggests that duplicated DNA gave rise to unique traits such as diverse cone structures and egglike roots.
A new study in Genome Biology and Evolution reveals extensive gene flow among butterfly lineages, resulting in a network of related species rather than a simple tree. This challenges traditional models of evolution and highlights the importance of adaptive introgression in shaping species diversity.
A waterflea population has undergone rapid evolution in response to predator pressure over nearly two decades, with changes linked to specific environmental conditions. The study highlights the crucial role of standing genetic diversity in supporting adaptive evolution and its implications for conservation biology.
An international team has developed a method to analyze ancient DNA in museum specimens, allowing for their placement on the evolutionary timeline. The technique enabled researchers to trace the evolutionary history of several species over tens of millions of years.
Researchers discovered a novel neurological disorder caused by spontaneous mutations in the RNF2 gene, leading to symptoms such as intellectual disabilities, seizures, and feeding difficulties. The study, led by Dr. Shinya Yamamoto and Dr. Vandana Shashi, found that loss-of-function variants in RNF2 disrupt normal neuronal development ...
Researchers mapped protein domain evolution over 3.8 billion years, revealing a 'big bang' of domain combinations 1.5 billion years ago. This discovery could help understand and engineer proteins for disease management, vaccine design, and preventing pandemics.
Researchers used genetic techniques to show that bobtail and bottletail squids share a recent common ancestor, with major biogeographic events influencing their evolution. The study found that these events led to the diversification of many species, with some lineages emerging in response to changes such as the closure of the Tethys Sea.
Research finds that unusual DNA structures, called G-quadruplexes (G4s), are preserved by natural selection and play a role in gene expression and cellular processes. G4s are more common and stable in regions with important functions, suggesting they should be considered functional elements of the genome.
A team of researchers used phylogenetics to investigate recurrent adaptations in bird mitochondria, finding that most convergence events can be explained by random coincidences rather than adaptation. The study confirms the scientific opinion that distant species choose different ways of similar trait evolution, but challenges the idea...
A new study of Chinese cats reveals the evolutionary uniqueness and premier conservation importance of the elusive Chinese mountain cat, found only in the Tibetan plateau of China. The research resolves taxonomic classification uncertainty and pinpoints the prospects for survival of this endangered species.
Researchers analyzed epigenomic signals in human and primate cell lines, revealing weak signals linked to brain functions. The findings provide insights into the evolution of human biology and offer a new model for studying regulatory elements.
A study published in eLife reveals how plants produce defence chemicals that vary across Europe due to genetic variation, environmental pressures, and geographical location. The research found that different regions have unique profiles of these chemical compounds, shaped by factors such as weather conditions and landscape features.
A study by Columbia University researchers found that eusocial snapping shrimp have larger genomes due to an accumulation of 'jumping' genes called transposable elements. This discovery has significant implications for understanding the relationship between genome evolution and social behavior in various species, including humans.
A study found that social behavior in snapping shrimps influences genome size, with eusocial species having larger genomes and more transposable elements. Genome size varies widely between species and is generally unrelated to complexity.
A recent review in Genome Biology and Evolution discusses the evolutionary fates of supergenes, revealing new findings that challenge classical models. The genomic architecture of a supergene is inextricably tied to its evolutionary fate, with empirical studies yielding surprises about their origin and genetic architecture.
The researchers reported a reference sequence for the supernumerary B chromosome in maize, with key properties such as its origin and molecular mechanism remaining unclear. The study found that the current gene content is a result of continuous transfer from the A chromosomal complement over an extended evolutionary period.
A comprehensive genetic resource of rat-infecting malaria parasites has been published, providing insights into the evolution, virulence, and transmissibility of the disease. The study reveals diverse genetic and phenotypic variations between subspecies, which may aid in understanding malaria parasite gene functions.
Scientists have developed a new framework for describing gene content and order across Brassica species, which will aid in evolution studies. This framework enables the acceleration of beneficial gene exchange between species, ultimately leading to more climate-resilient crops.
Researchers found that Tasmanian devils' genome has undergone widespread evolution in response to transmissible cancer, but distinct sets of genes are involved at different timescales. The study suggests that conservation efforts should focus on maintaining genetic diversity across a wide set of functionally important genes.
Researchers at San Francisco State University have discovered a strange and confounding system of genes in the creeping vole, a tiny rodent native to the Pacific Northwest. The team found that the X and Y chromosomes had fused, causing the X chromosome in males to act like a Y chromosome.
A study found that drastic changes in the Mediterranean climate and geology 6 million years ago led to the emergence of new species in wall lizards. The researchers believe hybridization played a key role in this process, fueling evolution and promoting biodiversity.
A team of scientists from China has sequenced the genome of Lavandula angustifolia to understand the genetics behind its distinctive fragrance. The study revealed that gene duplications and terpenoid diversification led to the evolution of unique compounds, with potential applications in stress relief, skin conditioning, and pollination.
A new method developed by evolutionary biologists improves current species delineation methods and can help determine the threatened status of species. The DELINEATE approach models the speciation process, allowing researchers to understand how populations evolve into distinct species.
MIT researchers have generated the most accurate gene annotation of the SARS-CoV-2 genome, confirming six new protein-coding genes and discovering a rare gene-within-a-gene. The study also analyzed over 1,800 mutations, revealing regions that may help the virus evade the immune system.
A comprehensive study of the legume family reveals a history of whole-genome duplications and helps uncover the evolution of genes involved in nitrogen fixation. The research team identified strong evidence for 28 separate whole-genome duplication events, shedding light on the evolutionary spread and diversification of legumes.
A new bonobo genome assembly has been created with high accuracy, allowing for precise comparisons to other great apes and humans. The study reveals over 5,500 structural variants that distinguish the bonobo and chimpanzee lineages, providing insights into gene evolution and species divergence.
Researchers reconstructed the SARS-CoV-2 progenitor genome, finding it was circulating worldwide months before the first reported cases of COVID-19 in China. The team's findings provide a genetic common ancestor to all current infections and could aid molecular epidemiology detective work.
Researchers reconstructed Pinus genus evolutionary history using 1,662 genes, revealing 90% species originated in Miocene and midlatitude species are older than others. Environmental factors suggest topography drove pine diversification, with evidence of fire-adaptation syndromes over time.
Researchers have sequenced high-quality genomes for 16 vertebrate species, revealing new avenues for increasing immune defenses against emerging diseases. The study also standardizes genome assembly quality metrics using novel algorithms, paving the way for thousands of future genome assemblies.
Researchers found that corals' ability to grow calcium carbonate skeletons evolved between 308 and 265 million years ago, with necessary proteins present in their soft-bodied ancestors. The team identified genes responsible for transporting calcium and removing protons, as well as an acid-rich protein involved in skeleton building.
A new study proposes a universal nomenclature for oxytocin and vasotocin genes, which were previously named differently in various species due to small protein coding differences. The researchers found that both hormones stem from a common ancestral gene and propose a new naming convention based on this evolutionary history.
The Vertebrate Genomes Project has produced 16 diploid high-quality vertebrate reference genome assemblies, showcasing technological improvements and standardization for genomics. These assemblies enable unprecedented novel discoveries in biodiversity, conservation, and human health and disease.
Researchers Constantina Theofanopoulou and Erich Jarvis demonstrate that the human hormone oxytocin is the same gene across all major vertebrate lineages, finding synteny in the hormone's receptor. They advocate for a new standard nomenclature to make life easier for scientists studying oxytocin and other hormones.
The study unravels the evolutionary and genetic origins of flatfish specialized body plan through comparative genomic analysis. Key findings include significant alteration in genes related to visual perception, immune response, and musculature development.
Researchers at Stanford University have developed a new technique to analyze the genomes of archaic humans, revealing key differences in gene expression that may lead to physical traits. The study found associations with the vocal tract and cerebellum, suggesting rapid evolution of these organs in modern humans.
A team of scientists from China has sequenced the high-quality genome of Chinese hazelnut, identifying genes related to oil biosynthesis and stress resistance. The study provides valuable resources for molecular breeding and genetic improvement of hazelnut crops worldwide.
A study of marten genomes reveals that coastal refugia in Alaska and Canada may have provided resources for human migrants, aiding the peopling of the Americas. The research found a deep history for Pacific martens along the North Pacific Coast, dating back to the Last Glacial Maximum.
Recent genomic analyses reveal that bird genomes contain fewer tRNA genes compared to other vertebrates, yet exhibit similar usage patterns. The authors found that the contraction in tRNA genes is balanced by preferences for certain isoacceptor families, ensuring optimal translational efficiencies.
Researchers from Uppsala University discovered a new species of bumblebee, Bombus incognitus, through genetic analysis of Rocky Mountains samples. The study reveals potential for speciation in arctic and alpine environments due to climate change.
New study reveals that whales and hippos developed unique skin traits for aquatic life, contradicting current dogma. Genetic analysis shows that these traits evolved independently in both groups, with cetaceans losing more skin genes than hippos.
Researchers at the University of Florida have discovered a way to evaluate enzyme lifespan, allowing them to identify enzymes that need improvement. This breakthrough could lead to increased crop yields by reducing energy spent on replacing worn-out enzymes.
Studies on viral evolution reveal that beneficial mutations often occur at the expense of symptom severity, while genetic novelties can arise from noncoding DNA insertion. Additionally, viruses' codon usage is constrained by host machinery, with some exhibiting unique compositions, and their effects can persist after infection clearance.
Researchers from the University of Copenhagen have studied the giraffe's genome, discovering a key gene FGFRL1 that enables its extraordinary features, such as high blood pressure and dense bones. The study also found that giraffes spend less time sleeping than other mammals due to their unique circadian rhythm regulation.
The study found that SARS-CoV-2 underwent little significant genetic change in the first year of the pandemic, suggesting a 'generalist' nature and rapid transmission. This is attributed to human population immunity and lack of containment, allowing the virus to spread quickly.
A recent study by biophysicists at the University of Cologne shows that bacteria can easily integrate genetic material from other bacterial strains, producing hybrid organisms with extensive genomic and functional changes. This horizontal gene transfer enables rapid evolution and can drive evolutionary processes efficiently.
A team of genetics researchers found that evolutionary forces drive a gender imbalance in health conditions, with men being more vulnerable to physical and mental health issues. This imbalance is due to the human genome's favoring of different characteristics in males and females, making men more susceptible to various conditions.
A new study reveals that fairy wrasses' diverged in form and colour after repeated sea level rises and falls during the last ice age, driven by an 'evolutionary arms race' to court females and chase off rival males. The research used a novel genome-wide dataset to reconstruct the fish's evolutionary history.
Research at York University found that maternal care of offspring leads to an expanding social life in bees, selecting more social genes over time. The study suggests a unifying principle driving social trait evolution across different species.
A study found that transposons play a key role in creating new genes through exon shuffling, a process that can lead to the creation of novel transcription factors. The research identified over 100 distinct genes fused with transposases across various species, including humans.
A recent study has shed new light on the evolutionary history and genomic variation of tigers, revealing population bottlenecks and recent divergence between subspecies. The research highlights the importance of local adaptation and genetic rescue efforts in tiger conservation.