Articles tagged with Hybridization
Researchers have discovered that Palmer amaranth has evolved multiple mutations to resist herbicides, including the gly-210 deletion and an arginine substitution, allowing it to evade control methods. The plant appears to be naturally tolerant to post-emergence PPO-inhibitor application.
Researchers from Lehigh University have found that songbirds prefer the scent of their own species over others, which could impact hybridization. The study, led by Amber Rice and Alex Van Huynh, used gas-chromatography mass-spectrometry to analyze natural oils produced by birds' uropygial glands.
The Persian walnut is the result of a 3.45 million-year-old hybridization between two long-extinct species. Using whole-genome sequencing, researchers found evidence of this ancient hybridization and provided insight into the evolution of walnuts.
Recent hybridization of Gulf killifish has enabled them to adapt quickly to extreme pollution in the heavily polluted Houston Ship Channel. The study found that fish from more polluted sites were most resistant to pollution and that resistance was inherited through multiple generations.
The Gulf killifish has developed adaptive resistance to pollutants in Galveston Bay, Texas, through hybridization with the Atlantic Killifish. This genetic exchange has enabled the species to persist in polluted waters, highlighting the role of inter-species connectivity in adaptation to environmental changes.
Researchers found that North African date palms are a hybrid between Middle East cultivated date palms and the wild Cretan telative native to Crete, leading to increased genetic diversity. The study sheds light on the evolutionary history of the earliest domesticated tree crop in the world.
Date palms in North Africa exhibit mixed ancestry due to hybridization with P. theophrasti from Crete, influencing 18% of their genome. Researchers sequenced genomes of 71 cultivars and five wild relatives to uncover this origin story.
A University of Michigan study reveals that hybridization between black and mantled howler monkeys is playing a direct role in completing the speciation process by enhancing genetic differences. The researchers found evidence for multiple forms of natural selection, including reinforcement, driving species differences.
Scientists have identified a rare three-species hybrid warbler found in Pennsylvania, resulting from a Golden-winged/Blue-winged Warbler mother and a Chestnut-sided Warbler father. Genetic analysis revealed the unique combination of traits, shedding light on bird's adaptability and genetic diversity.
A study on Darwin's finches reveals two pathways of species generation and diversification driven by selective mating based on body and beak size. The authors note that hybridization between similar lineages can drive speciation, highlighting the importance of conservation of diverse environmental conditions.
Researchers at the University of Montana found that snowshoe hares' winter coats are determined by a single pigmentation gene activated during autumn molt. This discovery highlights the importance of hybridization in adapting to changing environments, particularly as snow cover decreases due to climate change.
Researchers mapped coyote range expansion from ancient fossils to modern museum specimens, correcting misconceptions of their original range. Their findings indicate coyotes had a broader geographic distribution than previously thought, with significant expansions into taiga forests, deciduous forests, and tropical rainforests.
A study by Florida Atlantic University researcher Kate Detwiler found that hybridization between red-tailed and blue guenon monkeys is common, with 15% of the population consisting of hybrids. The research suggests that social learning and environmental factors may contribute to this phenomenon.
Swedish researchers study hybridization of Italian sparrows from Crete, Corsica, Sicily and Malta, finding independent events between house sparrow and Spanish sparrow. The populations have distinct genetic compositions due to limitations on genetic combinations, with certain genes always inherited from the house sparrow.
Recent research suggests up to 5% of modern humans' DNA originated from Neanderthal populations, sparking questions about species' genetic makeup. Dr. Anthony J. Tosi's new NSF-funded project aims to investigate the evolutionary mechanics of hybridization across a primate radiation.
Researchers from Princeton University and Uppsala University report the origin of a new lineage of Darwin's finches through hybridization between two distinct species. The study reveals that reproductive isolation was established in just two generations, with the new lineage becoming ecologically competitive and unique.
Researchers identify strategies to enhance lithium storage in 2D nanomaterials, including hybridization, surface/edge functionalization, and structural optimization. These approaches aim to improve conductivity and accommodate volume expansion during charging/discharging cycles.
A team of researchers from the University of Idaho challenges a 2016 study that suggested eastern and red wolves are not distinct species but rather recent hybrids. The new review argues that the data do not definitively prove recent hybridization, instead supporting the genetic and evolutionary distinctiveness of red and eastern wolves.
Scientists have successfully cultivated a new species of malaria mosquito in the laboratory, allowing for more accurate investigation of their physiology and ability to transfer the disease. The study also found that the species has an expanded habitat range across Eurasia, with populations declining in some areas due to climate change.
Researchers at Nagoya University have created a label-free method for detecting real-time DNA amplification based on refractive index changes in diffracted light. This technique is highly sensitive and can quantify DNA concentrations from 1 fM to 1 pM, outperforming existing fluorescence-based detection systems.
New research reveals that blue-winged and golden-winged warblers are almost identical genetically, with only six regions showing strong differences. The study suggests that conservation efforts should focus on preserving habitat for both species rather than worrying about hybridization.
Researchers at UC Riverside found a new species of tumbleweed with a dramatically expanded geographic range in just a decade. The species, Salsola ryanii, is an allopolyploid formed from hybridization between two invasive species.
Scientists have developed a new way to make yeast hybrids in the lab, allowing industries to create new strains of microorganisms to work with. This technique could lead to the creation of new flavors, enhanced production, and the development of entirely new products.
Researchers at Lehigh University predict a drastic northward shift in suitable habitat for southern chickadee species by 2050, displacing northern species. Climate change affects species distributions and hybridization, with potential implications for the merging of two species.
A genome-wide study identifies the Ainu people as direct descendants of indigenous Jomon, supporting a hybridization model for Japanese population history. Genetic mixing occurred around 5,000-7,000 years ago, older than previously estimated archaeological records.
Researchers detected three instances of cross-species mating that influenced the evolutionary paths of old world mice, suggesting hybridization may not be an evolutionary dead end. The study found shared genetic code between two species of mice from Europe and Africa, with implications for human genetics and health.
A Concordia University study reveals that hybrid fish become genetically robust like their purely wild counterparts within a few generations, providing hope for conservation efforts. This finding has implications beyond fish, with similar conclusions drawn about wolf species previously exposed to hybridization.
A study by researchers from the University of Montana finds that climate warming is increasing hybridization between native westslope cutthroat trout and invasive rainbow trout. This accelerated hybridization threatens the genetic integrity and diversity of native species.
Researchers mapped the epic evolution of a 'ring species' using genomic analysis, revealing complex divergence and hybridization. The Greenish Warbler's range expansion involved periods of geographic separation and interbreeding.
The study found that climate change has accelerated the spread of hybridization between native westslope cutthroat trout and introduced rainbow trout in North America. Hybridization has contributed to the decline and extinction of many native fish species, including all subspecies of cutthroat trout.
A study published in the Journal of Heredity has found recent wolf-dog hybridization in the Caucasus region. The research team analyzed DNA samples from wolf and dog fur, scat, and blood, and discovered that about ten percent of dogs and wolves sampled had hybrid ancestry.
A new study published in PLOS ONE reveals that the clymene dolphin, a small marine mammal, arose through natural hybridization between two closely related dolphin species. The research provides insights into the mechanisms of evolution and highlights the importance of continued monitoring for this threatened species.
Scientists have identified a new species of wild cat living in northeastern and southern Brazil, with distinct habitats and evolutionary histories. The discovery highlights the need for targeted conservation efforts to protect these endangered species.
A University of Michigan-led study found that individuals of mixed ancestry among hybrid howler monkeys are physically indistinguishable from pure individuals of each species. The findings suggest that the role of interbreeding in human evolution may have been underestimated due to limitations in the fossil record.
A study used next-generation sequencing to identify tuberculosis genes in a 19th-century skeleton, revealing a historic strain of the disease. The technology saved time and accurately identified DNA, paving the way for further research into the disease's evolution.
Analysis of North American prickly pear cacti species shows widespread hybrid origin, likely resulting from western and southeastern US parental species hybridization. Genome duplication contributed to the distribution pattern seen today.
A Kansas State University researcher is studying the genetic basis of natural variation in sunflowers, a process known as ecological or evolutionary genetics. The study has found that massive proliferation events of LTR retrotransposons contribute to the increase in genome size of hybrid species.
A recent study published in PNAS reveals that people in East Asia carry genetic material from Denisovans, a previously unknown archaic human relative. This finding suggests that gene flow between humans and Denisovans occurred on the Asian mainland, contradicting previous theories about hybridization events.
A team of scientists has discovered that the female ancestor of all living polar bears was a brown bear that lived in Britain and Ireland during the last ice age. This hybridization event likely occurred due to climate changes affecting the North Atlantic ice sheet, leading to periods of overlap in bear habitats.
A study in Current Biology found that polar bears and brown bears have mated successfully for 100,000 years, resulting in unexpected genetic connections between the two species. The research suggests that climate change may be responsible for these hybridizations, which could impact conservation strategies.
A recent study confirms that Cuban crocodiles in the wild are hybridizing with American crocodiles, posing a significant threat to the species' survival. This genetic interbreeding may lead to both replacement and genetic mixing, potentially causing the extinction of one lineage.
A new mathematical model shows that species pairs can reemerge after collapse if the disturbance is removed. Hybridization between closely-related species can lead to population decline and biodiversity loss. The study suggests that ecosystem managers may be able to refill ecological niches, but not resurrect lost species.
A scientific risk assessment examined Poplar's introduction for biofuel production, revealing hybridization patterns with native populations. The study found complex interbreeding and genetic shift in native species, highlighting the need for monitoring and regulatory guidelines.
The study reveals that DNA hybridization is sensitive to sequence composition, with certain sequences binding rapidly and others through a diffusive process. Understanding this process can aid researchers in designing technologies like gene chips more effectively.
Researchers found that three sunflower species arose from hybridization have massive proliferation of genetic elements, contradicting theory for diploid species. This discovery provides insight into the activation and proliferation of transposable elements in plants, particularly under abiotic stress conditions.
The study found that the two species split no more than 6.3 million years ago and probably less than 5.4 million years ago, suggesting an initial split followed by later hybridization before a final separation. Genome analysis revealed big surprises, with major implications for human evolution.
Researchers at Indiana University found that plant species can be just as easily divided into categories as animal species, contrary to previous claims. The study also revealed that many bird and fish species successfully hybridize in the wild, while ferns are less likely to produce fertile hybrids.
Researchers found that genetic super-combinations from hybridization can create advantageous traits for survival and reproduction. They demonstrated a possible mechanism for rapid evolutionary change through replicating the births of three unusual species within a few generations.
Researchers discover widespread hybridization between introduced rusty crayfish and native species, altering ecosystems and leading to population displacement. The study highlights the significant impact of non-native species invasions on biodiversity.