Articles tagged with Plant Evolution
Researchers at UC Riverside identified a genetic marker that controls avocado tree flowering patterns, allowing breeders to determine flower type long before it blooms. This discovery could revolutionize avocado breeding by making decisions faster and more efficient, with potential benefits for high-quality fruit production.
Research in New Phytologist shows that plant spininess is shaped by browsing mammals past and present, as well as environmental conditions like dry-season length, soil pH, and temperature. Current and extinct large herbivores are key predictors of spiny species prevalence.
A recent study found that wild snapdragons use subtle shades to attract bees, with four paintbrush genes working together to create a gradient of yellow. The strength of natural selection on each gene was estimated using a hybrid zone where two varieties meet, revealing the intricate mechanisms behind molecular gradients.
Researchers at the University of Michigan found that pollinators are driving plant adaptation in morning glories, leading to a steep decline in their ability to adapt to changing climate conditions. The study suggests that human activities such as pesticide use and habitat destruction have contributed to this decline.
A study by John Innes Centre researchers reveals that inner tissues play a crucial role in shaping plant organs, contradicting the widespread assumption that external layers control growth. By analyzing cell division orientation and gene editing techniques, they discovered genes affecting stem thickness in Arabidopsis.
Scientists found that hummingbirds facilitate the creation of new species in bromeliad plants at a rate of 2.77 per million years, compared to 1.46 for other pollinators. This accelerated evolution is attributed to hummingbirds' high-altitude feeding habits and their ability to act as an engine for new species.
Researchers discovered over 47,000 endogenous viral elements in plant genomes, revealing the wide range of hosts infected by Caulimoviridae viruses. The study also found 35 previously undescribed taxonomic clusters, including a new clade in conifers.
A unique plant fossil cache in New Mexico reveals angiosperms flourished 10 million years before dinosaurs' demise, contradicting the view that they only took over after their extinction. The discovery showcases a thriving forest dominated by flowering plants with large fruits, challenging the traditional narrative.
A previously inactive moss gene plays a key role in their reproductive success, regulating the number of offspring and improving resource allocation. The study found that this gene acts as a brake, preventing too many sporophytes from developing, which is advantageous for parental resources.
Scientists have identified the Yucatan Peninsula as the origin of modern cotton, tracing back its lineage to a diverse population native to Mexico. The study reveals that domestication led to a genetic bottleneck, narrowing the gene pool in successive generations.
Researchers identify previously unknown protein RAK1, crucial for three-dimensional growth and division in moss, a step towards understanding plant colonization of land. The study provides new insight into fundamental mechanisms underlying plant growth and evolution.
Healthy plants release chemical signals called VOCs that inform neighboring plants about competitive pressure, triggering adjustments in growth and defense strategies. Genetic analysis reveals shifts in biomass linked to changes in stress-response and cellular transport genes.
Researchers found that genome duplications during major environmental upheavals helped plants survive mass extinctions and extreme conditions. The study suggests that polyploidy, or having multiple sets of chromosomes, can be beneficial for plants in stressful environments.
Researchers at John Innes Centre develop rapid seed germination protocol, reducing Ash dieback's impact. This new method has already produced over 2,000 seedlings for trials and research.
Researchers tracked genetic changes in Arabidopsis thaliana across 30 sites over five years, finding most populations adapted to local environmental conditions. However, some populations went extinct due to genetic drift, highlighting the importance of preserving biodiversity.
A new open access database of cactus ecology and evolution could help scientists and conservationists save species from the brink. The CactEcoDB offers an unprecedented window into the evolution, ecology and conservation needs of one of the world's most distinctive and endangered plant families.
A new study has discovered over 2.3 million conserved non-coding sequences in plants, providing a comprehensive atlas of regulatory conservation across 284 species. These sequences date back to over 400 million years ago, shedding light on the evolution of plant genomes and gene families.
A new study has identified ~2.3 million conserved non-coding DNA sequences across 284 plant species, revealing deep principles of plant genome evolution. These ancient regulatory sequences can be maintained despite repeated genome duplications, opening the door to precise engineering of plant traits.
Researchers at Kobe University found that liverwort's hair-like rhizoids take in and transport phosphorus to its tissues, contrary to initial assumptions. This discovery sheds light on the evolution of nutrient acquisition mechanisms in simple land plants like mosses and liverworts.
Researchers discovered a short amino acid motif in NIN that confers broader DNA binding specificity, essential for rhizobial infection and nitrogen fixation. This finding suggests NIN evolved by co-opting preexisting molecular features of ancestral NLP transcription factors.
Researchers found that plants living in areas with human activity causing population crashes have reduced genetic diversity and higher inbreeding levels. Conservationists must consider a population's history-influenced genetics alongside its size and habitat in planning.
Researchers found that the green-flowered Aeschynanthus acuminatus evolved on the mainland, not in Taiwan, and adapted to shorter-beaked birds. This contradicts the Grant-Stebbins model of plant evolution, which predicted the species would evolve in Taiwan with new pollinators.
Researchers at Harvard University have discovered that cycads heat up their reproductive organs to attract beetle pollinators, who possess infrared sensors to detect these signals. The study found that all 17 cycad species followed a circadian pattern, with male cones heating first and females cooling down before warming up again.
A recent study mapped the evolutionary history of Asia-Pacific Balanophora species, revealing its retained plastids despite losing photosynthetic genes. This allows it to survive entirely as a parasite on specific tree roots, with some species producing seeds without fertilization.
Researchers found that all Balanophora plants have an extremely reduced plastid genome, showing that even though they abandon photosynthesis, the plastid is still vital to their metabolism. Asexual reproduction likely evolved repeatedly in the group, with some species colonizing islands without fertilization.
Researchers at Cold Spring Harbor Laboratory developed an AI-powered approach to identify redundant genes in plants. By analyzing evolutionary data and machine learning models, they predicted which genes to edit to modify specific traits, providing a new 'roadmap' for plant breeders.
A new archaeological study reveals that early humans relied heavily on a wide range of plant and animal foods, challenging the traditional paleo diet narrative. Humans have always been flexible eaters, using diverse plant resources to unlock key calories and nutrients.
Researchers found that a plant species adapted to urban conditions exhibited inheritable characteristics, such as changes in size and flowering periods, within 60 years of urbanization. Elevated ground temperatures and reduced soil acidity drove these differences.
Researchers sequenced the genome of over 3,400 cultivated eggplant varieties and identified key agronomic traits associated with genes. The study revealed over 3,000 associations between traits and genes, providing a foundation for breeding tailor-made eggplant varieties adapted to local conditions.
A multidisciplinary team of researchers used genomic technology to decode the DNA of non-flowering seed plants, including gymnosperms, to identify genes involved in seed development. The study, published in Nature Communications, may aid scientists in improving crop production and conserving these ancient endangered seed plants.
A Chinese research team has identified a rare natural allele in wild soybeans that increases seed protein content and was lost during domestication. The found allele, PC08 Ins, boosts gene expression, raises ABA levels, and promotes storage protein accumulation.
Researchers found that conifer resin contains a mix of ancient and recent diterpenes, which may aid in combating bark beetles. The team's genetic analysis revealed that some diterpenes originated 300 million years ago, while others developed more recently and independently in different tree species.
Researchers collect snapdragon flowers and leaves to study their genetic diversity, revealing how color genes keep two varieties distinct. In hybrid zones, magenta and yellow snapdragons blend, but bees prefer one over the other, reducing fitness and offspring.
Researchers at Linköping University and the University of Las Palmas de Gran Canaria have discovered that lentils grown in the Canary Islands have a 2,000-year history, with genetic analysis revealing they originated from North African varieties brought by indigenous people. The study suggests these well-adapted lentil varieties may be...
Researchers at RIKEN Center for Sustainable Resource Science identified ancient protein SCORE to help plants defend against various pathogens. By engineering synthetic SCORE variants, plants can be made resistant to multiple pathogen types.
A team of researchers at the University of Toronto has identified a protein, Shikimate kinase-like 1 (SKL1), that enables land plants to convert light into energy through photosynthesis. This discovery holds promise for improved herbicides and increased efficiency of photosynthesis in food crops.
Researchers at Cranfield University are developing a faster and more efficient method for genetically engineering plants, bypassing tissue culture. The 'Fast-Track Crop Improvement' project aims to transform seeds and pollen directly, increasing the speed of crop improvement and opening up new possibilities for breeding and production.
Researchers found that a single synonymous mutation in a gene drives cucumber elongation by altering RNA structure and function. This breakthrough has significant implications for crop breeding programs and may lead to the development of precision-crop improvement techniques.
New research reveals that plants rely on multiple heat-sensing systems and a sugar-based mechanism to detect temperature changes. Sugar produced in sunlight helps plants grow taller even when thermosensors like phytochrome B are less effective. This discovery could lead to breeding crops more resiliently under stress.
New research reveals evolutionary reversal in island plants where wild-growing tomatoes on western islands produce alkaloids similar to those found in eggplants. The study suggests that environmental conditions may be driving the reversal, and this phenomenon could have implications for human evolution and nature's ability to adapt.
Researchers identified two novel genetic mechanisms governing disease resistance in wheat, involving pairs of nucleotide-binding leucine-rich repeat immune receptors. The discoveries offer new insights into plant immunity and provide crucial gene resources for breeding resistant wheat varieties.
Chinese researchers developed a groundbreaking 3D genome mapping technology that reveals how the 3D organization of plant genomes influences gene expression, especially in photosynthesis. The innovation provides a precise tool for understanding long-range chromatin interactions and their role in regulating biological processes.
Researchers created the most comprehensive genetic atlas of cannabis, revealing unprecedented diversity and untapped opportunity in this foundational agricultural species. The study sets the stage for transformative advances in cannabis-based agriculture, medicine, and industry.
A new study reveals that DNA methylation mediates the transgenerational inheritance of acquired cold tolerance in rice, supporting Lamarck's theory. Researchers developed a novel breeding strategy to develop stress-resilient crops, offering a promising avenue to tackle agricultural challenges posed by global climate change.
A Kobe University study finds that a gene regulating root development in vascular plants is also essential for organ development in liverworts, demonstrating the evolutionary dynamic of co-opting. The RLF protein, involved in this process, interacts with others to clarify plant organ development evolution.
A study by Kobe University reveals that plants reproducing solely through self-pollination likely arose from populations with extremely low genetic diversity. The research found that these species are highly successful at producing fruit and may have an evolutionary edge over outcrossing, raising questions about their long-term viability.
A recent study found that human activities negatively impact plant diversity over vast distances, with natural habitats containing only a fraction of potential species in heavily impacted regions. The DarkDivNet network analyzed 5,500 locations across the globe, revealing alarming effects on biodiversity.
New York University researchers developed a novel process using machine learning to reveal groups of genes governing nitrogen use efficiency in plants like corn. The study aims to help farmers improve crop yields and minimize fertilizer costs.
The Hong Kong Bauhinia Genome Project has completed a decade-long effort to sequence the DNA of Hong Kong's floral emblem, revealing 28 complete chromosomes and solving the species' parentage. The project's T2T genome assembly provides insights into genetic mechanisms underlying its vibrant blooms and ecological adaptability.
Researchers at ISTA have discovered a new DNA marker, N4-methylcytosine (4mC), crucial for sperm function and fertility in the liverwort Marchantia polymorpha. The team found that high levels of 4mC are necessary for agile sperm development, affecting swimming speed, direction, and fertilization success.
A University of Maryland study reveals that young plants face a hidden trade-off between fighting disease and growing, leading to reduced reproductive fitness. Plants with stronger disease resistance as seedlings produce fewer flowers and seeds over their lifetime.
A study analyzing nearly 270,000 seed plant species reveals environmental conditions, particularly climate, play a significant role in shaping global plant distributions. Physical barriers have a smaller effect on ancient plant groups that have had longer periods to disperse widely.
Researchers discovered that cruciferous plants like cabbage and wasabi repurpose stomatal genes for defense, producing pungent compounds that deter herbivores. FAMA regulates both gas exchange and myrosin cell production, a key trigger for this defense mechanism.
Researchers have uncovered two major genes responsible for sorghum's double-grain spikelet, leading to a significant increase in grain number and crop yield. The study found that the DG1 gene regulates floret meristem formation and differentiation, restoring fertility to the lower floret and resulting in the double-grain trait.
A research team from Göttingen University has compared algae and plants that span 600 million years of independent evolution, identifying a shared stress response network. This comprehensive dataset can be further explored for its physiological impact across plant diversity.
A new species of manzanita has been discovered on the central coast of California, but its survival is already at risk due to urban development. The species, Arctostaphylos nipumu, lacks a protective burl that allows some other manzanitas to resprout after wildfires.
Research published in New Phytologist reveals that Japanese knotweed's ability to outcompete native plants lies in its rapid clonal propagation method. This study provides crucial insights into the invasive plant's success and offers valuable knowledge for developing effective control methods.
Researchers Rob Martienssen and Thomas Gingeras analyzed maize and teosinte genomes to identify regulatory regions controlling gene expression. They found hundreds of thousands of enhancers and super enhancers that were strongly selected during domestication 9,000 years ago.
Researchers mapped yerba mate's genome, discovering an ancestor that duplicated its genome 50 million years ago. This event led to the evolution of caffeine biosynthesis in yerba mate and coffee through convergent pathways. The study provides opportunities for creating plant varieties with new characteristics.
A study by Kobe University botanist Kenji Suetugu reveals that certain fungus-eating orchids, like Stigmatodactylus sikokianus, predominantly self-pollinate after three days, ensuring reproductive success. This delayed mechanism may drive the evolution of combined self- and outcrossing methods to avoid inbreeding.