Genetically diverse crowds are wiser
A new study by Dr. Meir Barneron found that genetically diverse groups outperform homogeneous groups in making collective judgments, suggesting genetic diversity enhances collective intelligence.
Genetic Diversity
Articles tagged with Genetic Diversity
Published research from the Parkinson’s Foundation shows genetic variants are more common in people with Parkinson’s disease than originally thought
The PD GENEration study has found that 13% of participants have a genetic form of Parkinson's disease, significantly higher than previous estimates. The study, which reached its goal of 15,000 participants ahead of schedule, provides insights into the genetics of the disease and its potential for precision medicine.
Genetics reveal ancient trade routes and path to domestication of the Four Corners potato
Genetic analysis reveals that ancient Indigenous people brought the native tuber to southern Utah, adding to the list of culturally significant plant species domesticated in the Southwestern U.S. The Four Corners potato was transported and cultivated by various tribes, including Pueblo and Apache communities.
Asexual reproduction usually leads to a lack of genetic diversity. Not for these ants.
Researchers at Rockefeller University found that clonal raider ants preserve genetic diversity through a unique method of asexual reproduction. The study reveals that daughter ants inherit two distinct versions of their genome, largely preserving the genetic diversity present in their mother's genome, which enables the species' survival.
Genome study informs restoration of American chestnut tree
A genome study has identified regional adaptations in American chestnut trees, informing restoration efforts and climate resilience. The research provides guidance for conserving genetic diversity across the Appalachian region, with a focus on preserving the most genetically diverse southern population.
Using AI to scrutinize, validate theories on animal evolution
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.
Genetic study highlights importance of diversity in understanding health disparities
A large-scale genetic study found that genetic data from diverse groups, including non-European populations, can provide critical insights into health disparities. The study identified population-specific signals and unique genetic variations associated with specific traits or conditions, highlighting the importance of diversity in und...
Unraveling the DNA mystique of Saposhnikovia divaricata: New horizons in herbal medicine
A pioneering study has sequenced the genome of Saposhnikovia divaricata, a traditional medicinal herb, revealing its evolutionary adaptations and therapeutic benefits. The research paves the way for enhancing the plant's efficacy through targeted genomic breeding strategies, potentially leading to superior therapeutic applications.
New study addresses a long-standing diversity bias in human genetics
A new study has generated a global catalog of human gene expression data from around the world, increasing representation of understudied populations. The increased diversity empowers researchers to attain more-accurate insights into genetic factors driving human variation and disease risk.
Unlocking the almond genome: Unraveling the secrets of heterozygosity
A study has revealed the genetic complexities of almonds, highlighting significant heterozygosity and structural variants' influence on gene expression. This research paves the way for targeted breeding strategies to enhance desirable traits such as disease resistance and yield in almond cultivars.
‘A history of contact’: Princeton geneticists are rewriting the narrative of Neanderthals and other ancient humans
Researchers found evidence of multiple waves of genetic intermingling between modern humans and Neanderthals, challenging previous theories. The study reveals a more intimate connection between early human groups than previously believed.
Not so simple: mosses and ferns offer new hope for crop protection
Non-flowering bryophytes, including mosses, have sophisticated immune receptor repertoires that can be transferred between flowering and non-flowering plants. This discovery offers a new source of resistance genes against pathogens for major crops facing climate change threats.
Pumpkin disease not evolving, could make a difference for management
The Xanthomonas cucurbitae pathogen that causes bacterial spot has remained genetically uniform across the Midwest, with most isolates sharing over 99% identical DNA sequences. This lack of diversification may hinder the pathogen's ability to evolve and could be leveraged for developing disease-resistant crops.
Blossoming insights: genetic mechanisms behind flower form
A study has uncovered the pivotal role of the APETALA3–3 ortholog in shaping petal morphologies in Delphinium anthriscifolium. The gene's expression levels influence final petal forms, highlighting its crucial role in both petal identity and differentiation.
Genetic patterns of world’s farmed, domesticated foxes revealed via historical deep-dive
A team of researchers uncovered the geographical origins of farmed foxes and understood the role of genetic diversity in their domestication. The study found that every captive population originated from wild North American foxes, with greater genetic diversity observed in Eurasian populations.
Last surviving woolly mammoths were inbred but not doomed to extinction
A genomic analysis of last surviving woolly mammoths on Wrangel Island reveals signs of inbreeding and low genetic diversity, contradicting the idea that they were doomed to extinction. The research suggests that a random event likely led to their demise.
Unlocking broccoli's genome: key to enhanced health benefits
A genomic study of broccoli has identified key genes involved in glucosinolate biosynthesis, offering insights into the production of compounds with anti-carcinogenic properties. The research provides a comprehensive understanding of the genetic factors influencing glucosinolate diversity among different Brassica species.
Wild yeasts from Patagonia could yield new flavors of lagers
Researchers developed new lager yeasts by hybridizing brewer's yeast with Patagonian wild strains, which resulted in enhanced fermentation capacity and unique aroma profiles. The study provides a way to expand the range of currently available beer styles through wild yeast exploration.
Blast from the past
Researchers have discovered a new source of resistance to the devastating wheat blast disease, leveraging a gene that also protects against powdery mildew. The Pm4 gene, found in European wheat varieties, confers dual protection against the pathogen and its effector molecule AVR-Rmg8.
Hidden mechanisms behind hermaphroditic plant self-incompatibility revealed
A new study presents an evolutionary-biophysical model that sheds light on the evolution of collaborative non-self recognition self-incompatibility in plants. The model introduces promiscuous molecular interactions, enhancing our understanding of genetic diversity and evolution in hermaphroditic plants.
Finding hidden genetic treasure: Study uncovers untapped diversity in historic wheat collection
A decade-long study has discovered a vast untapped genetic potential in modern wheat varieties, revealing that at least 60% of the genetic diversity found in a historic collection is unused. This discovery provides an unprecedented opportunity to improve modern wheat and sustainably feed a growing global population. The study used a cr...
Adding genetic information to health checks improves identification of people at risk of heart attacks and strokes
Researchers have discovered a better way to identify those at high risk of potential heart attacks and strokes by adding genetic information to health checks. The study found that combining clinical risk scores with polygenic risk scores significantly improves identification rates, especially among younger people.
Scientists accurately measure cancer evolution
A new study by a global consortium provides insight into how tumors evolve, shedding light on the intricate processes underlying cancer evolution. The findings define optimal algorithms to analyze tumor evolution, enhancing diagnostic accuracy and treatment planning.
Early summer fishing can have an evolutionary impact, resulting in smaller salmon
A genetic study found that early summer fishing in the Baltic Sea targets larger salmon, leading to smaller fish and reduced population diversity. The study suggests that intensive fishing in the early season can cause evolutionary changes, affecting the age and size of Atlantic salmon before maturity.
Confronting climate change: the genetic makeover of a threatened conifer
This study explores how Cupressus gigantea has reduced its genetic load despite dwindling population size, suggesting effective purifying selection. The research provides valuable insights for conserving rare conifer species facing similar threats.
Trout in mine-polluted rivers are genetically ‘isolated’
Researchers found metal-tolerant trout populations in British and Irish rivers are genetically distinct due to high levels of metal pollution. The lack of genetic diversity in these populations makes them more susceptible to environmental changes.
Fatal attraction: When endangered species try to mate with domestic relatives, both wildlife and people lose
A new study highlights the human impacts of endangered species mating with domestic relatives, causing economic loss and death. Conservation efforts are also overlooked for marginalized pastoralist populations, who often lack effective defense against aggressive wild males.
Cultural and linguistic networks of Central African hunter-gatherers have ancient origin
A study led by Andrea Migliano from the University of Zurich has discovered previously unknown links between culture, language, and genes among different hunter-gatherer populations in Central Africa. The team found that musical instruments were exchanged long before agricultural populations arrived in the region, suggesting extensive ...
Ancient DNA study reveals population history of Western Tibetan Plateau
Researchers sequenced ancient genomes to understand the genetic composition of western plateau populations over 3,500 years. They found complex interactions between southern and western plateau populations, with Central Asian components introduced around 2,300 years ago.
Melon flavor decoded: the genetic keys to aromatic diversity
Researchers have identified over 1000 quantitative trait loci (QTLs) affecting melon aroma and ripening, revealing specific chromosomes that influence ester and aldehyde levels. These findings will aid breeding programs aimed at enhancing fruit quality and provide valuable genetic material for developing melons with enhanced flavors.
Social change may explain decline in genetic diversity of the Y chromosome at the end of the Neolithic period
A recent study suggests that the decline in genetic diversity of the Y chromosome between 3,000 and 5,000 years ago was caused by social change, rather than violent conflicts. The researchers analyzed anthropological field data and modeling scenarios to conclude that patrilineal organizations had a significant impact on the Y chromosome.
The coupling between healthspan and lifespan in Caenorhabditis depends on…
Researchers assessed swimming performance and survival under stress to evaluate the effects of three compounds on health and lifespan in Caenorhabditis. The study found complex relationships among median lifespan, oxidative stress resistance, thermotolerance, and mobility vigor.
Arboviruses, mosquitoes and potential hosts tracked in real time in São Paulo city
A team of researchers used a rapid metagenomics technique to sequence viral RNA and DNA from blood-engorged mosquitoes collected in São Paulo city, identifying vectors, viruses, and hosts. The protocol has the potential to extend our understanding of insect genetic diversity and arbovirus transmission.
Deciphering the palette: Unveiling the genetic secrets of Rhododendron flower color diversity
A research team unravels the genetic secrets of Rhododendron flower color diversity, shedding light on gene duplications, losses, and regulatory networks. The study provides a foundation for future breeding endeavors aimed at developing novel cultivars with specific floral characteristics.
Iconic savanna mammals face genetic problems due to fences and roads
A new study reveals that wildebeest populations which no longer migrate are less genetically healthy and more prone to decline. The loss of migration routes due to fencing and roads leads to lower genetic diversity, increased inbreeding, and reduced fertility.
Filling in genomic blanks for disease studies works better for some groups than others
A new study from the Keck School of Medicine of USC found that genome-wide association studies' imputation technique works better for European, African American, and Latino groups than others. The researchers evaluated over 100 global populations, finding that imputation is less reliable for those farther away from Europe.
First-of-its-kind integrated dataset enables genes-to-ecosystems research
A new dataset has been released that combines molecular information about the poplar tree microbiome with ecosystem-level processes. The dataset provides detailed information on 27 genetically distinct variants of Populus trichocarpa, a bioenergy crop, and includes data on gene expression, soil chemistry, and microbial diversity.
Rusty-patched bumblebee’s struggle for survival found in its genes
The study revealed three genetically distinct populations of rusty-patched bumblebees, highlighting the need for tailored conservation efforts. The analysis showed low colony abundance and high rates of inbreeding, threatening the long-term viability of the species.
Researchers and practitioners have different views on seed transfer for ecological restoration
Scientists find a mismatch between research-driven approaches to seed provenancing and practical implementation challenges faced by restoration ecologists. Stakeholder survey results highlight the need for decision support frameworks that integrate science, practice, and stakeholder involvement.
Single genomic test promises accelerated diagnoses for rare genetic diseases
Researchers developed a single-assay approach using exome sequencing data to detect large-scale pathogenic mutations, detecting 91 previously undetectable mutations. This shift could enable earlier diagnoses and save the NHS vital resources.
Scientists extract genetic secrets from 4,000-year-old teeth to illuminate the impact of changing human diets over the centuries
Researchers have recovered ancient microbiomes from 4,000-year-old teeth in Ireland, revealing major changes in oral microenvironments. The study identified bacteria linked to gum disease and provided the first high-quality ancient genome of Streptococcus mutans, a major culprit behind tooth decay.
Severe hurricanes boost influx of juveniles and gene flow in a coral reef sponge
A study by Florida Atlantic University researchers found that severe hurricanes can increase the recovery of coral reef sponges by boosting the influx of juveniles and promoting gene flow. Genetic analyses revealed that populations of clonal marine species may benefit from increased frequency and magnitude of hurricanes to maintain gen...
New research reveals full diversity of killer whales as two species come into view on Pacific Coast
Two well-known killer whale ecotypes in the North Pacific Ocean have been identified as separate species through genetic and behavioral evidence. The resident and Bigg's killer whales have distinct physical characteristics, diets, and cultural habits, justifying their recognition as distinct species.
Bengal cat coats are less wild than they look, genetic study finds
A genetic study of over 1,000 Bengal cats reveals that their leopard-like patterns and iridescent sheen are primarily the result of domesticated cat genes. The researchers found no evidence of Asian leopard cat genes being present in all Bengal cats, contradicting the breed's wild origins.
Exposure to tobacco before birth significantly increased risk of Type 2 diabetes in adults
Research suggests that early-life tobacco exposure significantly increases the risk of developing Type 2 diabetes in adulthood, particularly for individuals with a high genetic risk. Lifestyle factors such as diet, exercise, and smoking habits may modify this risk, emphasizing the importance of healthy lifestyle choices.
Analytic tool reveals more cream of the crops
The KAUST team developed an open-source platform to detect small DNA differences, revealing over 2 million previously overlooked genetic variants in rice and other crops. This tool will accelerate the discovery of genetic variations for developing crops with improved resilience and yield.
Assessing the impact of malaria interventions through routine sampling of pregnant women
Genomic analysis of malaria parasites in pregnant women reveals reduced diversity in areas with elimination interventions implemented. Routine sampling of pregnant women can inform about changes in transmission and complement clinical data.
Epidemic of fatal prion disease kuru likely led to migration of women in the Eastern Highlands of Papua New Guinea
Researchers found that genetic variants in the Fore population made them resistant to kuru, while a large influx of females migrated into the region due to flexible kinship systems. The study suggests an alternative theory on how Fore communities interacted with neighboring communities despite fears of kuru.
Cape Lion was genetically diverse prior to extinction, researchers find
Researchers found high genetic diversity in Cape lions prior to their extinction, contradicting colonial descriptions. The study suggests that the species exhibited significant phenotypic variation, including diverse mane coloration.
Genes identified that allow bacteria to thrive despite toxic heavy metal in soil
A Washington State University-led research team discovered a set of genes in wild bacteria that allow them to survive exposure to nickel, enabling them to thrive in toxic soils. The genetic discovery could inform future bioremediation efforts to return plants to polluted soils.
Anemonefish are better taxonomists than humans
Researchers at OIST found that anemonefish can identify specific lineages of giant sea anemones, revealing two cryptic species within the bubble-tip sea anemone. The study provides new insights into marine biodiversity and highlights the remarkable abilities of these fish in distinguishing between different sea anemone groups.
Mutation solves a century-old mystery in meiosis
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.
The Malaria parasite generates genetic diversity using an evolutionary ‘copy-paste’ tactic
Researchers identified a mechanism of 'copy-paste' genetics in Plasmodium falciparum that increases genetic diversity of surface proteins, potentially evading the human immune system. This discovery offers valuable insights for vaccine design and could help inform new approaches to preventing malaria.
Becoming human: An ancient genome perspective
The study of ancient genomes has shed light on the evolution of modern humans, revealing genetic changes that distinguish us from Neanderthals and Denisovans. These findings suggest that population-level advantages, such as increased connectivity and access to resources, played a significant role in shaping human migration patterns.
Targeting seed microbes to improve seed resilience
Researchers at KAUST have investigated the potential of manipulating fonio's association with soil microbes to improve its drought tolerance and nutritional content. The study found that the core microbiome of fonio millet plays an important role in its general metabolism, and that environmental factors can influence microbial diversit...
Unveiling rare diversity: the origin of heritable mutations in trees
Researchers identified rare genetic mutations in two tropical tree species, which are transmitted to offspring and contribute to their genetic diversity. These mutations have no effect on UV exposure but can help the trees adapt to changing environments.
Bottlenecks and beehives: how an invasive bee colony defied genetic expectations
Research shows that invasive Asian honeybee population in North Queensland has overcome a genetic bottleneck to grow into a thriving colony. The study highlights the importance of this case for understanding population resilience and provides insights into how some species can adapt quickly despite low genetic diversity.
Korea University College of Medicine identifies hantavirus in South Korea using a new rapid test, paving way for early outbreak control
A new rapid test has been developed to identify hantavirus in South Korea, paving the way for early outbreak control. The Flongle sequencing-based diagnostic is cost-efficient and can detect HTNV genomes within 3 hours.
Butterfly and moth genomes mostly unchanged despite 250 million years of evolution
Researchers analyzed over 200 butterfly and moth genomes to understand their evolutionary history. They found that chromosomes have remained largely unchanged since the last common ancestor over 250 million years ago, despite the diversity seen today in wing patterns and caterpillar forms.
Weedy rice gets competitive boost from its wild neighbors
A study found that weedy rice's promiscuity allows it to crossbreed with wild rice, enabling it to adapt and outcompete cultivated rice. This process, called adaptive introgression, has contributed to the evolution of Southeast Asian weedy rice.