According to Greek mythology, red roses first appeared when Aphrodite pricked her foot on a thorn, spilling blood on a white rose. Since then, roses’ thorns have captured the imaginations of countless poets and forlorn lovers. According to Greek mythology, red roses first appeared when Aphrodite pricked her foot on a thorn, spilling blood on a…
The “prickles,” as botanists call them, evolved in roses and other plants thanks to a single gene, a new study found. The “prickles,” as botanists call them, evolved in roses and other plants thanks to a single gene, a new study found. your-feed-science, Research NYT > Science
Humans and baker’s yeast have more in common than meets the eye, including an important mechanism that helps ensure DNA is copied correctly, reports a pair of studies published in the journals Science and Proceedings of the National Academy of Sciences. Humans and baker’s yeast have more in common than meets the eye, including an important…
Rocks recently exposed to the sky after being covered with prehistoric ice show that tropical glaciers have shrunk to their smallest size in more than 11,700 years, revealing the tropics have already warmed past limits last seen earlier in the Holocene age, researchers from Boston College report in the journal Science. Rocks recently exposed to the…
In ecosystems, sharks can be predators, competitors, facilitators, nutrient transporters, and food. However, overfishing and other threats have greatly reduced shark populations, altering their roles and effects on ecosystems. We review these changes and … In ecosystems, sharks can be predators, competitors, facilitators, nutrient transporters, and food. However, overfishing and other threats have greatly reduced shark…
A wildfire on the edge of metro Denver crept within a quarter-mile of evacuated homes, but authorities said Thursday morning they were hopeful to save hundreds of threatened residences as they grapple with sweltering temperatures and firefighters suffering heat exhaustion. A wildfire on the edge of metro Denver crept within a quarter-mile of evacuated homes, but…
The proliferating cell nuclear antigen (PCNA) clamp encircles DNA to hold DNA polymerases (Pols) to DNA for processivity. The Ctf18-RFC PCNA loader, a replication factor C (RFC) variant, is specific to the leading-strand Pol (Polε). We reveal here the … The proliferating cell nuclear antigen (PCNA) clamp encircles DNA to hold DNA polymerases (Pols) to DNA…
Late-onset Alzheimer’s disease (LOAD) is the most common form of Alzheimer’s disease (AD). However, modeling sporadic LOAD that endogenously captures hallmark neuronal pathologies such as amyloid-β (Aβ) deposition, tau tangles, and neuronal loss remains … Late-onset Alzheimer’s disease (LOAD) is the most common form of Alzheimer’s disease (AD). However, modeling sporadic LOAD that endogenously captures hallmark…
Neuroimmune cross-talk participates in intestinal tissue homeostasis and host defense. However, the matrix of interactions between arrays of molecularly defined neuron subsets and of immunocyte lineages remains unclear. We used a chemogenetic approach to … Neuroimmune cross-talk participates in intestinal tissue homeostasis and host defense. However, the matrix of interactions between arrays of molecularly defined neuron…
An enduring question in evolutionary biology concerns the degree to which episodes of convergent trait evolution depend on the same genetic programs, particularly over long timescales. In this work, we genetically dissected repeated origins and losses of … An enduring question in evolutionary biology concerns the degree to which episodes of convergent trait evolution depend on…