Articles tagged with Evolutionary Developmental Biology
Iowa State researchers discovered a surprising chromatin arrangement in two species of turtles, which may shed light on the evolution of vertebrate genomes. The study's findings could have potential biomedical applications, such as treating strokes or cryogenic preservation of human tissues.
A new study led by Arizona State University researcher Michael Lynch explores the substantial energy demands required to maintain and evolve multicellular life. Multicellular organisms require a tenfold increase in energy compared to protists, highlighting how respiration and metabolic processes are crucial for advanced life forms.
A study by researchers at the University of Zurich found that common marmosets' brain development is shaped by prolonged learning from social interactions, similar to humans. This similarity suggests that early-life social experiences may be crucial for the formation of neural and cognitive networks in humans.
Researchers found that chimpanzees have a similarly narrow pelvis to humans, contradicting previous theories. The study proposes a new hypothesis that the obstetrical dilemma developed gradually and became increasingly exacerbated over evolution.
The international project will analyze temperature-sensitive proteins in animals adapted to different thermal environments to understand how they perceive temperature changes. The study aims to uncover the molecular mechanisms underlying cold perception in animals, enabling them to initiate physiological responses crucial for survival.
The study of turtle genomes provides crucial information for the development of effective conservation strategies and the understanding of the evolution of sex chromosomes. Researchers have identified a novel three-dimensional chromatin conformation in both lineages, allowing for centromere-telomere interactions.
A team of scientists studied the Kashmir skull and found it to be a distinct species from other known Eurasian Palaeoloxodon. The research suggests that Palaeoloxodon turkmenicus represents a poorly-known missing link in the evolution of these prehistoric megaherbivores.
Researchers identify a plausible geological environment where nucleic acids can replicate and potentially lead to life. The study reveals a circular fluid flow at the gas-water interface drives strand separation, allowing replication to occur.
Researchers discovered a massive number of evolutionary events in the Asteraceae family on remote islands, resulting from rapid speciation over short time periods. The findings confirm that larger, isolated islands harbor unique species and highlight the importance of protecting this diverse group of plants.
Researchers discovered that sea robins' legs are covered in sensory papillae with taste receptors, allowing them to detect and uncover food. The findings reveal an ancient gene controlling leg development and sensory organ formation, shedding light on the evolution of complex traits in wild organisms.
A recent study published in iScience found that the length of time cells spend engaged in the repair process is also key to regulating regeneration in African killifish. The researchers discovered that skin cells launch a genetic program that primes the whole animal to prepare for a repair response, guiding repair cells to get to work.
Researchers at the University of Cambridge found that flowers like hibiscus use an invisible blueprint to dictate the size of their bullseyes, which can significantly impact their ability to attract pollinating bees. Larger bullseyes are preferred by bees and can potentially boost efficiency for both bees and blossoms.
A new method called VitelloTag has been developed at the Marine Biological Laboratory, allowing researchers to deliver miniature research tools into egg cells and embryos. The approach uses a yolk protein found in most animals to bind to the receptor on the egg cell surface, enabling efficient delivery of CRISPR-Cas9.
Researchers propose a new approach to understanding cancer evolution, acknowledging the importance of environmental influences and epigenetic changes. By refining the clonal evolution model, they aim to develop more effective cancer therapies that consider the full complexity of cancer cell evolution.
Researchers from King's College London found that the lateral fabella, a sesame seed-sized bone in the knee, evolved differently in humans than most primates. This distinct evolutionary pathway may have helped early humans walk upright and could be an example of exaptation.
A previously unstudied ancient gene called 'waist-less' is required for the development of a spider's narrow waist, according to researchers. The discovery sheds light on the formation of the distinctive body plan in spiders and highlights the function of new genes in ancient groups of animals.
Researchers found a choanoflagellate harboring its own microbiome, forming colonies that enclose bacteria and exhibiting a unique symbiotic relationship. This discovery sheds light on the origin of interactions between animals and bacteria in ancient oceans.
Researchers found that blind cavefish develop more taste buds on their head and chin, particularly after 18 months of age. This adaptation is thought to be an adaptive trait, allowing the fish to better detect food sources like bat guano.
Researchers at U of T mapped the spatial distribution of long non-coding RNAs in testes, finding higher levels than previously estimated. The study suggests lncRNAs play a more significant role in male reproduction and may influence sperm development and behavior.
Researchers found a strikingly similar pluripotency gene network across jawless and jawed vertebrates, suggesting a common evolutionary origin. The study reveals that the loss of the pou5 gene in lampreys' neural crest cells may have limited their ability to form cell types found in jawed vertebrates.
Researchers from the University of Washington have made significant advancements in understanding the evolutionary origins of flight in bats. The study, published in PeerJ Life & Environment, explores the transition from gliding to powered flight using phylogenetic comparative methods.
A recent study published in Nature Communications found that mammals with more developed brains tend to exhibit smaller sexual size dimorphism (SSD), meaning there is less difference in size between males and females. This suggests that complex brain development may be linked to other traits such as social behavior and mate selection.
Researchers at Boston College found male dragonfish have evolved larger eyes to detect females who produce less light, closing a bioluminescent detection gap. This is the second known case of sexually dimorphic eye-size in fishes and highlights the unique adaptations of deep-sea species.
Researchers at Stowers Institute for Medical Research have identified the dengue virus genome's use of less efficient codons in its host's machinery to replicate and spread. This discovery has implications for developing novel antiviral treatments and vaccines, as well as understanding the relationship between viruses and their hosts.
A new species of fossil snake, Hibernophis breithaupti, has been discovered in Wyoming, shedding light on the origin and diversification of boas and pythons. The discovery provides important new information on the evolution of small burrowing boas, specifically rubber boas.
A new study uses machine learning to analyze the genetic diversity of two amphibian species, finding that different processes shaped their evolution. The research suggests that population demographic events and contemporary landscape factors played a significant role in shaping the genetic variation of these species.
The study reveals that 'move' dominated during Eocene and Miocene Climatic Optimums, while 'evolve' prevailed after Miocene, correlating with global cooling and new habitats. The transition between these strategies has significant implications for plant survival and adaptation.
The ELTE Eötvös Loránd University has digitised over 431 animal skulls, including those of 152 dog breeds and 12 wild relatives. This unique collection is now available online, enabling researchers to conduct comparative anatomical and evolutionary studies.
Researchers found that dogs matched their emotional state with the content of human vocalizations, while pigs exhibited stress behaviors to unusual humming sounds. This suggests that domestication may have facilitated emotional contagion in dogs.
A genomic analysis overturned the leading hypothesis on firefly light origin, revealing that lucibufagins, a toxic compound, evolved after bioluminescence development. Fireflies' ancestors diversified during a period of rising atmospheric oxygen levels, suggesting a similar path to glowing millipedes.
A research team from Göttingen University has discovered that antisense RNA (asRNA) plays a crucial role in cell transport, allowing cells to accelerate gene expression and produce proteins quickly in response to environmental stress or harm. This new understanding sheds light on the function of asRNAs and their potential link to disea...
A team of UConn researchers, without lab experience, published the first chromosome-level genome of a desert hairy scorpion. The study sheds light on arachnid evolution and advances comparative genomics research.
Researchers have established Holothuria tubulosa as a new experimental model organism for studying evolutionary development in echinoderms. The study has developed a protocol to efficiently produce embryonic cultures of the sea cucumber, allowing for the use of genetic manipulations to dissect development.
Researchers studied newborn baboon brain anatomy to predict future gestural communication handedness, finding that nearly 70% developed a right-hand preference. The study suggests a shared evolutionary heritage and potential clinical implications for brain surgery patients.
Researchers discovered that killifish early embryogenesis differs from other fish species, with the embryo's body axis formed through self-organization rather than maternal pre-patterning. This adaptation allows the species to survive dry periods without accumulating damaged cells.
Researchers found human infants use 'helpless' period to pre-train brain, leading to rapid learning and high performance, similar to machine learning models. This study challenges classic explanation for infant helplessness and could inspire next gen AI models.
Researchers at Eötvös Loránd University sequenced and characterized the paradise fish genome, revealing a compact genetic material ideal for targeted genome editing experiments. This breakthrough opens up new possibilities for studying evolutionary development and complex behaviors.
Researchers discovered that German cockroaches originated from Asian cockroaches approximately 2,100 years ago. The species adapted to human-built environments, leading to a dependence on living inside manmade structures. This evolution has enabled the cockroaches to thrive globally and develop resistance to insecticides.
Researchers found that snails from tidal areas developed stronger circatidal rhythms compared to those in nontidal regions. The study suggests that environmental adaptations can influence the expression of genes controlled by biological clocks, leading to potential changes in physiological processes.
A new Research Training Group will investigate the evolution of nuclear genomes in organisms using different forms of reproduction, including asexual and sexual reproduction. The group aims to better understand the dominance of sexual reproduction in nature through empirical analysis of changing and evolving genomes.
Scientists have discovered that different modes of cell division used by animals and fungi may have evolved to support diverse life cycles. A study using Ichthyosporea as a model found that certain species use closed mitosis while others use open mitosis, shedding light on the evolutionary origins of these processes.
The study explores how different cell division strategies have evolved across organisms, finding a link between life cycle stages and mitotic strategies. Species with multinucleate stages tend to use closed mitosis, while those with mononucleate stages employ open mitosis.
Scientists discovered a new type of cell that promotes nurturing behavior in mice, which is also present in humans and has been linked to increased parental care. The study suggests that this newly evolved cell type may be responsible for the monogamous behavior of oldfield mice.
Researchers identify fossil from Fezouata Shale as ancestor of modern arthropods, solving long-standing paleontological mystery. The discovery fills a gap in the evolutionary tree of life and provides insights into early chelicerate evolution.
Researchers will use high-resolution scans and data analysis to investigate the influence of genes and environment on tooth morphology in two primate species. The study aims to advance bioanthropological practice and provide a comprehensive understanding of dental genetic architecture.
A study found that adult chimpanzees continue to learn and refine their tool-using skills well into adulthood, suggesting a prolonged learning capacity is key to the evolution of complex tool use in chimps and humans. Chimpanzees developed motor skills for handling sticks by age six, but continued to hone techniques until age 15.
Researchers have generated complete genome data for four filamentous 'star algae' species, revealing overabundances of signalling genes and environmental response factors that underpin molecular mechanisms shaping plant bodies. The findings provide insights into the origins of land plants and their ability to adapt to environments.
A University of California - Riverside study finds that medium-sized dogs have a higher risk of developing cancer than larger or smaller breeds. The multistage model of cancer acquisition supports this finding, suggesting that size is a major risk factor for cancer.
A recent study published in Nature reveals a vast DNA tree of life for flowering plants, providing insights into their evolutionary history. The analysis of over 9,500 plant species reveals the rapid development of diversity in ancient times, with key findings supporting the plastid-based phylogenetic classification of angiosperms.
Researchers mapped over 1,000 yeast species to understand their genetic blueprints and evolutionary history. The results suggest that internal factors are the primary drivers of variation in a yeast's ability to eat different foods.
A team of researchers has identified a key gene, Emx2, that helps explain the evolution of gliding in marsupials. The study found that accelerated evolution near this gene and its associated enhancers drives the development of patagium, the thin skin membrane allowing gliding.
A study found that agastric fish lack specific genes required for gastric functions, such as slc26a9, kcne2, cldn18a, and vsig1. These findings suggest a genotypic convergence where gene losses correlate with stomach loss in various fish lineages.
Researchers found that macroalgae acquired new genes for cell adhesion, differentiation, communication, and transport from viruses, which played a critical role in their evolution to multicellularity. The study provides valuable genomic resources for further studies on the biology of macroalgae.
A Mediterranean marine worm has evolved massive eyes, rivaling those of mammals, to see in the dark. The worms use their exceptional vision to detect bioluminescent signals and may have a secret language through light communication.
A new analysis of grackle feeding behaviour suggests that male grackles are more efficient foragers in uncertain environments, relying on risk-sensitive learning to navigate chaotic settings. This strategy allows them to dominate urban environments and lead their species' invasion.
Researchers sequenced RNA transcripts from 18 primate brains to map every expressed gene, revealing remarkable variation in humans and chimps compared to other primates. The study identifies specific genes for further research and sheds light on human neurodegenerative disorders.
A study led by Leopold Eckhart found that the genetic programme controlling keratinized claws originated in a common ancestor of humans and frogs. The research team used the tropical clawed frog as an experimental model and discovered that important hair components, including keratins, share similarities with human hair.
A team of scientists at Pohang University of Science & Technology uncovered the molecular mechanism responsible for crossover interference during meiosis, a biological process that generates genetically diverse reproductive cells. The findings have significant implications for breeding and cultivating crops with specific desired traits.
Researchers at Salk Institute unveil an RNA enzyme that can accurately copy functional RNA strands and allow new variants to emerge over time. This discovery brings scientists closer to producing autonomous RNA life in the laboratory, potentially revolutionizing our understanding of the origins of life.
Researchers report that Golgi ribbons are present in non-vertebrates like mollusks and earthworms, suggesting a fundamental function beyond vertebrate specificity. The team's findings indicate that Golgi ribbons might play a role in cell differentiation during embryogenesis.