Articles tagged with Evolutionary Genetics
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.
Researchers discovered that a small subpopulation of AIB1-expressing cells in breast cancer enables invasion and metastasis. The study suggests that these subpopulations play a crucial role in tumor growth and spreading to distant sites.
Researchers at Kyoto University have discovered the mechanism by which breast cancer forms in mammalian epithelial cells. The team found that approximately 20 mutations accumulate annually in each cell until menopause, after which the rate decreases significantly.
A research team from the University of Göttingen investigated the molecular networks of a single-celled alga to understand plant terrestrialization. They identified 'hub genes' that play a central role in coordinating gene expression, revealing insights into long-term evolutionary patterns.
Tobin Hammer argues that some hosts have evolved a dependence on their microbiome, but the microbes do not provide any benefits in return. This phenomenon, known as evolutionary addiction, could have unique implications for understanding host-microbe interactions.
A breakthrough study on kākāpō population sequencing is helping New Zealand manage the health of this critically endangered species. The study reveals genetic characteristics crucial to survival and has massive implications for conservation genomics in other species.
Researchers found that white-tailed deer are virus reservoirs, promoting ongoing mutation of the SARS-CoV-2 virus. At least 30 infections were introduced by humans, and an estimated 23.5% of deer had been infected at one time or another.
A team of researchers from Göttingen University has identified seven new species of leaf insects, showcasing their unique camouflage abilities. The discovery highlights the importance of protecting these distinct species from extinction.
Scientists at the Boyce Thompson Institute have constructed a comprehensive 'super-pangenome' for watermelon and its wild relatives, uncovering beneficial genes lost during domestication. This genetic toolkit can be used to develop varieties with enhanced yield, increased disease resistance, and improved adaptability.
The oldest and fastest evolving moss in the world, Takakia, may not survive climate change. Despite its rapid adaptation capabilities, the species is declining in population size due to warming temperatures and increasing UV radiation, threatening its very existence.
A recent study suggests that the common ancestors of bats were omnivorous, feeding on a mixture of fruits and insects. The researchers resurrected ancient proteins from six ancestral lineages and found that the sweet taste receptor was present in all extant bat species.
A KAUST-led team has compiled the first complete genome map of einkorn, an ancient grain that could help develop bread wheat varieties with enhanced disease resistance and improved hardiness. The study reveals a complex evolutionary history of wheat species, including gene flow between einkorn and wild cousins.
Researchers discovered a deep connection between the sums-of-digits function from number theory and phenotype mutational robustness in genetics. The maximum robustness is proportional to the logarithm of the fraction of all possible sequences that map to a phenotype, with a correction given by the sums of digits function s_k(n).
Researchers found that mutations in the Pro1 protein enable the rice blast fungus to thrive through increased conidia release. This finding suggests an adaptive advantage for the pathogen, potentially linked to its loss of female fertility.
A study reveals that specific bacteria drive the evolution of antimicrobial peptides in Drosophila, providing insights into how host immune systems adapt to new ecological niches. The findings also suggest a new model for AMP-microbiome evolution.
Researchers at Columbia University and the University of Texas uncovered the genomic regions responsible for skeletal changes in primates that led to upright walking. The study found genes associated with hip, knee, and back arthritis, offering insights into prevention and treatment.
Researchers identified 145 key genetic points controlling skeletal proportions using AI on tens of thousands of X-ray images and genetic sequences. This discovery opens a window into predicting patients' risks of developing conditions like back pain or arthritis.
Researchers analyzed full-body X-ray images and genomic data from 30,000 UK Biobank participants to understand the genetic architecture of the human skeletal form. They identified 145 independent genetic loci associated with skeletal proportions, linking them to musculoskeletal disease and evolution.
A review of animal evolution in response to fire may help inform conservation strategies, as changing fire regimes impact species. By analyzing nearly 100 papers, the authors identified various adaptations, such as infrared sensory pits and behavioral changes, that enable animals to survive fires.
A new study provides new insights into the genomic architecture and evolutionary mechanisms that have allowed clownfish to diversify and thrive in various ecological niches. The study revealed a genome-wide acceleration in evolution among clownfish, with over 5% of all genes found to be under positive selection.
Researchers have identified 30 basic units of 'synteny' that exist in all butterflies and moths, dating back to their common ancestor with caddisflies. This study improves understanding of chromosome evolution in Lepidoptera and may provide insights into other animal or plant groups.
An international team of scientists found that sea snakes have enhanced their colour vision due to living in brighter marine environments. The species has four intact copies of the opsin gene SWS1, allowing them to see a wider range of colors.
Researchers found that the annulated sea snake possesses four intact copies of the opsin gene SWS1, two with ancestral ultraviolet sensitivity and two with evolved sensitivity to longer wavelengths. This suggests that sea snakes have regained color discrimination to distinguish predators, prey, and mates in their marine habitats.
A long-term study of male macaques found that same-sex sexual behavior is common and correlated with coalitionary bonds, providing social benefits. The research also revealed a genetic link to primate SSB, challenging the idea that it defies nature and evolution.
Researchers have finally solved the mystery of the pygmy right whale's evolutionary history, revealing it as a distinct lineage not related to right whales. The study, published in Marine Mammal Science, used genome sequencing and morphology to confirm the whale's unique characteristics.
A team of researchers at Indiana University created a synthetic cell with only 493 genes, essential for life. The cell evolved rapidly over 300 days, adapting to its environment and recovering fitness lost due to genome streamlining.
A study by the Netherlands Institute of Ecology found that great tits are struggling to adapt their breeding timing to cope with climate change, leading to a decline in population numbers. The researchers used innovative methods to speed up evolution and predict the impact of climate change on natural selection.
Researchers discovered that a tiny sea creature, Hydractinia, regenerates its entire body with help from aging cells, providing insights into the interconnectedness of healing and aging. The study suggests that senescence may have evolved as a regeneration mechanism in ancient animals.
Researchers from IMBA identify a family of virus-like transposons called Mavericks that facilitate horizontal gene transfer (HGT) between reproductively isolated worm species. The study reveals the role of Mavericks in overcoming the species barrier, with potential applications in pathogen control and genomic innovation.
A study published in Science Advances discovered that talitrids, a group of small crustaceans, independently colonized mountain habitats four times during the Oligocene and Miocene periods. Genetic adaptations allowed them to survive in colder environments and establish themselves in diverse habitats worldwide.
The Tara Pacific expedition's dataset reveals that global microbial biodiversity is ten times higher than previously thought, and environmental impacts on evolutionary adaptation are species-specific. Duplication of important genes in corals may be the key to their long lifespan.
Researchers confirm Bachman's warbler as a distinct species by sequencing its genome from museum specimens. The study reveals a new candidate gene involved in feather pigmentation in the group. Comparing the genomes of the extinct warbler with living sister species highlights the crucial role of museum collections in science.
A new study sheds light on the genetic heritage of chickpeas by analyzing landrace genomics from over 400 specimens collected in the 1920s and 1930s. The research reveals that the spread of chickpeas within each region occurred predominantly along trade routes, rather than through simple diffusion.
Researchers have discovered that eukaryotes, including plants, animals, and fungi, share a common ancestor among the Asgards. The team identified a newly described order called the Hodarchaeales as the closest microbial relative to all complex life forms on the tree of life.
Researchers have identified over 30 previously unknown RNA viruses in sea lice, suggesting they may play a role in controlling sea-lice populations. The viruses' ability to rapidly replicate and weaken their hosts maintains balance in nature.
The study found that multiple copies of two genes, cldnj and fthl27, enable the hadal snailfish to maintain auditory senses and withstand high pressure. The fish's genetic variations allowed it to adapt to the absence of light in the deep sea, with some genes related to circadian rhythms lost.
Scientists have discovered a new embryonic cell type that self-destructs in response to DNA damage, serving as a quality control mechanism to protect the developing fetus. This process may help improve IVF and regenerative medicine treatments by identifying and removing damaged cells.
Research identified three genetic risk factors for Dupuytren's contracture, a condition affecting fingers, that originated from Neanderthal DNA. The study, based on 7,871 affected individuals and 645,880 healthy controls, provides evidence of the intermingling between Neanderthals and modern humans influencing disease prevalence.
A new study reveals that Dupuytren's disease, a hand disorder affecting Northern Europeans, has a significant genetic component tied to Neandertal ancestry. Researchers identified three variants of Neandertal origin as major risk factors for the condition.
A biologist at Binghamton University has developed a new method to uncover the parent species of hybrid plants and animals. By examining genomic patterns within these hybrids, researchers can identify distinct ancestries and determine the order in which chromosomes were inherited from their progenitor species.
A new study from the Gibson Lab at Stowers Institute for Medical Research sheds light on how some of Earth's earliest animals evolved. Researchers discovered that a common genetic toolkit is deployed in different ways to drive embryological development, producing diverse adult body plans.
Researchers found that giraffes on either side of the rift have not interbred for over 1,000 years, with females showing no signs of migration. The study suggests that Masai giraffes are more endangered than previously thought, requiring separate but coordinated conservation efforts.
A study published in PLOS Biology found that the CARD8 inflammasome sensor is essential for detecting coronavirus infections, but may detect different viruses in different people. The researchers also discovered that genetic variation among humans and across species affects the sensor's ability to detect viral enzymes.
Researchers have unlocked the large-scale genomic analysis of foxtail millet, an important cereal crop that has been grown for roughly 11,000 years. The study identified key genes and marker-panels for its evolution and improvement in different environments.
A study of tropical tree species found that older, slower-growing trees accumulate more somatic mutations, which can be transmitted to seeds, increasing genetic variation and adaptation. The rate of mutations per year is similar between the two species, suggesting a clock-like accumulation of mutations with age.
A new international study reconstructs the legacy of Chile's largest indigenous community, the Mapuche, through genetics and linguistics. The research reveals distinct Mapuche lineages originated locally and have remained in relative isolation, punctuated by episodes of contact with other South American populations.
Researchers from the University of Surrey investigate how protons move in Hachimoji DNA, a synthetic form of DNA not yet found in nature. They find that proton transfer happens more easily in Hachimoji DNA compared to regular DNA, suggesting potential implications for mutation rates and genetic systems.
The study reveals new insights into primate evolution, genetic diversity, and the uniqueness of humans. It also highlights the importance of preserving primate species due to high genetic diversity, which enables adaptation to changing environments.
Researchers, led by Elizabeth King, aim to develop a knowledge base on complex genetic traits using fruit fly models. The project seeks to address the scientific knowledge gap in this field by focusing on interconnectedness among multiple factors.
Researchers analyzed the genomes of 233 nonhuman primate species, revealing key features of primate evolution, human disease, and biodiversity conservation. The study identified 4.3 million common missense mutations and developed phylogenies for primate species.
A new study reveals Asian colobines living in colder regions underwent genetic changes and alterations to their social structure, forming larger, more complex societies. These adaptations allowed them to cooperate and survive in environments with low oxygen levels and extreme temperatures.
Researchers have pinpointed a previously hidden whole genome duplication in the common ancestor of sturgeons and paddlefish, which may have provided genetic variations that helped these species survive mass extinctions. The discovery suggests that there may be many more overlooked whole genome duplications in other species before perio...
Researchers analyzed 692,534 race times to find genetic improvement accounts for 60% of speed increase in short-distance races, while heritability is low across all distances. The study suggests weaker selection or other factors limiting genetic progress, particularly over long distances.
A study suggests that river erosion can drive biodiversity in geologically quiet environments, such as the Appalachian Mountains. The research found that changing landscapes pushed a species of fish into different tributaries, leading to distinct genetic lineages.
Three Amazonian Morpho butterfly species have been sequenced for the first time, revealing genetic differences that maintain reproductive isolation despite sympatry. The study found Z-chromosome rearrangements and genetic divergence among gene copies, suggesting a role in speciation.
Recent studies reveal complex patterns of admixture in human populations, particularly in Africa and the Americas. In Africa, ancient introgression from Neanderthals and Denisovans contributed to increased genetic diversity, while in the Americas, modern admixture resulted in redistributed archaic ancestry.
A new study maps gene linkages to identify comb jellies as the sibling group to all other animals, providing a clear-cut evidence of their evolutionary relationship. The research sheds light on how key features of animal anatomy evolved over time.
Researchers use chromosome structure to determine that comb jellies were the first lineage to branch off from the animal tree, followed by sponges. This finding sheds light on how animals arose and evolved into the diverse species we see today.
A study published in Nature provides clear evidence that comb jellies are the sister group to all other animals, based on the mapping of gene linkages. This finding will lay the foundation for a better understanding of animal evolution and the development of key features such as the nervous system and digestive tract.
A recent study published in Nature challenges traditional views on human origins in Africa, proposing that modern humans emerged from the interaction of multiple populations across the continent. By analyzing genomic data from diverse African groups, researchers found evidence of gene flow and mixing over hundreds of thousands of years.
Scientists have discovered an ancestral olfactory receptor in the Egyptian cotton leafworm that recognizes the female sex pheromone blend. This finding may lead to the development of new biocontrol methods by targeting specific receptors and blocking pheromone activation.