Researchers map 50,000 of DNA’s mysterious ‘knots’ in the human genome

Researchers map 50,000 of DNA’s mysterious ‘knots’ in the human genome

The knot-like i-motif structure protruding from DNA’s double helix has been mapped in 50,000 locations in the human genome, concentrated in key functional areas including regions that control gene activity. Credit: Garvan Institute Researchers have mapped 50,000 of DNA’s mysterious “knots” in the human genome. The innovative study of DNA’s hidden structures may open up … Read more

Athens faces new dangers as forest fires edge closer

Athens faces new dangers as forest fires edge closer

Thousands were forced to flee their homes as the massive blaze raged out of control for three days towards the capital earlier this month. With the smell still lingering in its suburbs after Greece’s worst wildfire this year, floods and pollution now threaten Athens, experts say. Thousands were forced to flee their homes as the … Read more

Climate change fuelled deadly Typhoon Gaemi: study

Climate change fuelled deadly Typhoon Gaemi: study

Manila residents walk amid debris in the aftermath of Typhoon Gaemi, which led to at least 40 deaths in the country. Climate change turbocharged the winds and rain of Typhoon Gaemi, which killed dozens of people across the Philippines, Taiwan and China earlier this year, a group of scientists said Thursday. Gaemi skirted the Philippines … Read more

Ancient sea cow that was attacked by both a primeval crocodile and shark sheds new light on prehistoric food chains

Ancient sea cow that was attacked by both a primeval crocodile and shark sheds new light on prehistoric food chains

A juvenile tiger shark. Credit: Albert Kok/Wikipedia A new study showing how a prehistoric sea cow was preyed upon by not one, but two different carnivores—a crocodilian and a shark—is revealing clues into both the predation tactics of ancient creatures and the wider food chain millions of years ago. Published in the Journal of Vertebrate … Read more

Prioritize equity and justice to build a thriving electric vehicle market, say researchers

Prioritize equity and justice to build a thriving electric vehicle market, say researchers

(a) Survey respondents’ preferences for vehicle type (e.g., small sedan, pickup truck) when considering the purchase of PEVs; (b) preferences for new vs. used vehicle market, regardless of vehicle technology; and (c) preferences for new vs. used vehicle market for PEVs, differentiated by annual income. For each income group, the total sums to 100%. Credit: … Read more

Walnut’s genetic armor against anthracnose revealed

Walnut’s genetic armor against anthracnose revealed

Expression pattern, phylogenetic analysis, and sequence alignment of JrWRKY4. Credit: Horticulture Research (2024). DOI: 10.1093/hr/uhae148 A recent study has pinpointed a gene module crucial for enhancing walnut trees’ resistance to anthracnose, a widespread fungal disease threatening the walnut industry. The research reveals how the JrPHL8-JrWRKY4-JrSTH2L module regulates disease defense, opening up new opportunities for breeding … Read more

Drones give snapshot of pod health

Drones give snapshot of pod health

Group of bottlenose dolphins about to break through the surface in Greece. Credit: MMRP/IDP, Fabien Vivier Using drones to successfully assess the age of critically endangered, free-ranging dolphins in Greece is the focus of new research at the University of Hawaiʻi at Mānoa Hawaiʻi Institute of Marine Biology (HIMB). This work, done in partnership with … Read more

Lessons learned from Pennsylvania’s rare chickadee ‘hybrid zone’ can now be accessed by students worldwide

Lessons learned from Pennsylvania’s rare chickadee ‘hybrid zone’ can now be accessed by students worldwide

An illustration from the learning module. Credit: Galactic Polymath In the hybrid zone that encompasses the Lehigh Valley in Pennsylvania, the habitats of the Carolina Chickadee and the Black-capped Chickadee converge, creating an opportunity for the different species to cross-breed and produce hybrid offspring. In a new online module, it’s the too-often disparate worlds of … Read more

Red flag laws may reduce the growing burden of firearm homicides

Red flag laws may reduce the growing burden of firearm homicides

Credit: Pixabay/CC0 Public Domain A recent study from researchers at Columbia University Mailman School of Public Health has found that Florida’s red flag gun law, which was enacted in response to the 2018 Parkland mass shooting, was associated with an 11% reduction in firearm homicide rates from 2019 to 2021. Firearm homicides are a leading … Read more

DNA replication in early embryos differs from previous assumptions, study shows

DNA replication in early embryos differs from previous assumptions, study shows

Live imaging of embryos at different stages. Chromosomes are labeled in magenta. 4-cell sister blastomeres are shown, along with 3D-reconstructed images of 2-to-4-cell and 4-to-8-cell divisions. Chromosomal copying errors were most prevalent at this stage of embryogenesis (13% of cells). Credit: RIKEN A new discovery by researchers at the RIKEN Center for Biosystems Dynamics (BDR) … Read more