Tag

Gars

All articles tagged with #gars

science1 year ago•4 min saved

"Unlocking Longevity Secrets: Studying Ancient Gars, Earth's Primitive 'Living Fossils'"

Gars, known as "living fossils," have the slowest rate of molecular evolution among vertebrates, indicating an over-active DNA repair mechanism that could have implications for human health. A recent study led by researchers at Yale University found that gars' DNA and RNA have changed up to three orders of magnitude more slowly than any other major group of vertebrates. Additionally, gars are the most distantly diverged organisms known to hybridize, with their extremely slow evolutionary trajectory potentially allowing distantly related cousins to continue producing fertile offspring. The study suggests that understanding the gars' efficient DNA-repair mechanism could lead to advances in human medicine and disease prevention.

via National Geographic|

#dna-repair #gars #hybridization

science-and-nature1 year ago•3 min saved

"Unveiling the Mysteries of Evolutionary Stagnation in Ancient Fish Hybrids"

The discovery of a hybrid fish, the Alligator Gar x Longnose Gar, has revealed the oldest parental split of any animal, plant, or fungi hybrid, dating back 100 million years. This finding sheds light on the slow evolution of gars, often considered "living fossils", and their ability to create viable hybrids with other species despite not sharing a common ancestor for millions of years. The study of gars could provide insights into DNA repair and potential implications for human health and cancer research.

via IFLScience|

#evolution #fish #gars

biology1 year ago•3 min saved

"Unraveling the Genetic Secrets of Slowly Evolving 'Living Fossil' Fish"

Research into ancient gars has revealed that their slow molecular evolution rates have led to the production of fertile hybrid offspring between species that haven't shared a common ancestor for 105 million years, providing a biological mechanism behind their status as "living fossils." This discovery sheds light on the evolutionary process in nature and could have implications for medical research.

via ScienceAlert|

#biology #dna #evolutionary-biology

science1 year ago•3 min saved

"The Mystery of Darwin's 'Living Fossil' Unraveled by New Discovery"

Gars, known as "living fossils" for their minimal evolution over 100 million years, have been found to possess a slow rate of molecular evolution, attributed to a strong DNA repair ability. This slow evolution limits speciation but allows for viable hybrid offspring. Yale University researchers hope to apply this self-repairing mechanism to human health, as it could potentially aid in cancer research. The study sheds light on the evolutionary process and its implications for biodiversity and medical research.

via Yahoo! Voices|

#dna-repair #evolution #gars

science1 year ago•3 min saved

"Unveiling the Genetic Secrets of Prehistoric Living Fossils"

Gars, a type of prehistoric fish, have been found to have one of the slowest rates of evolution among jawed vertebrates, making them the ultimate living fossils. A study revealed that gars and related sturgeons have evolved at an exceptionally slow pace, with low rates of gene substitution and mutation over time. This slow evolution has led to the stability of their few species over millions of years, allowing even species separated by 100 million years to interbreed. The research has raised questions about the mechanisms behind the low substitution rate and the stability of the genomes of gars and other living fossils.

via Livescience.com|

#evolution #gars #genetic-analysis

science1 year ago•3 min saved

"Uncovering the Ultimate Living Fossil: Prehistoric Fish with Razor-Sharp Teeth"

Gars, ancient fish dating back to the dinosaur age, have evolved at an exceptionally slow rate, making them the ultimate living fossils. A recent study found that gars and related sturgeons have the slowest rates of molecular evolution among all jawed vertebrates, leading to minimal physical changes and speciation. Surprisingly, gars from different evolutionary periods can still interbreed, producing fertile hybrids, raising questions about the stability of their genomes and the mechanisms behind their low substitution rate.

via Yahoo Life|

#evolution #gars #genetics

science2 years ago•4 min saved

"Genetic Insights from Slowly Evolving 'Living Fossils'"

A new study on gars, a group of ancient ray-finned fishes considered "living fossils," reveals that they have the slowest rate of molecular evolution among all jawed vertebrates, leading to low species diversity. This slow evolution rate is linked to the process of hybridization, where two different gar species produce viable offspring, despite last sharing a common ancestor during the age of the dinosaurs. The researchers speculate that gars have an efficient DNA repair mechanism, which could have implications for human health, particularly in understanding and potentially treating cancers. The study provides key genetic insights into the evolutionary process and suggests potential applications in medical research.

via Phys.org|

#evolution #gars #genetics