Citrus fruits from the mandarin family have important commercial value but how their diversity arose has been something of a mystery
Researchers analyzed the genomes of the East Asian varieties and found a second center of diversity in the Ryukyu Islands along with the previously known center in the mountains of southern China
They discovered a new citrus species native to Okinawa that arose about two million years ago when the Ryukyu archipelago became disconnected from mainland Asia
How do you study a group of organisms with over 300,000 species, dispersed across all seven continents, and with up to 50 times as much DNA content as the human genome?
This is the question posed to biologists studying the evolutionary history of flowering plants, called angiosperms, whose rapid diversification was so convoluted a problem that Darwin referred to it as the 'abominable mystery.'
AMES, Iowa - A new study led by an Iowa State University scientist sheds light on how organisms have evolved to address imbalances in sex chromosomes.
The study looks at a species of softshell turtle, but the results could help to illuminate an important evolutionary process in many species, said Nicole Valenzuela, professor of ecology, evolution and organismal biology and lead author of the study.
PITTSBURGH, July 26, 2021 - Adolescents who set goals for their future and those with strong parental support are less likely to use e-cigarettes and other tobacco products, according to a study by UPMC Children's Hospital of Pittsburgh and University of Pittsburgh School of Medicine physician-scientists.
The research, published today in the journal Pediatrics, suggests that strategies to prevent youth vaping may be different from what works to dissuade youth from smoking cigarettes.
Oncotarget published "Frame-shift mediated reduction of gain-of-function p53 R273H and deletion of the R273H C-terminus in breast cancer cells result in replication-stress sensitivity" which reported that these authors recently documented that gain-of-function mutant p53 R273H in triple negative breast cancer cells interacts with replicating DNA and PARP1.
Oncotarget published "TERT and its binding protein: overexpression of GABPA/B in high grade gliomas" which reported that all GA-binding proteins progress through the glioma grades and have the highest expression levels in secondary glioblastomas.
Thermal-imaging sensors that detect and capture images of the heat signatures of human bodies and other objects have recently sprung into use in thermostats to check facial temperatures in a contactless attempt to screen for COVID-19 at several building entrances. Under these circumstances, the smartphone industry is actively considering the incorporation of such sensors as portable features to create the add-on function of measuring temperature in real time. Additionally, the application of such technology to autonomous vehicles may facilitate safer autonomous driving.
Even in the absence of bark beetle outbreaks and wildfire, trees in Colorado subalpine forests are dying at increasing rates from warmer and drier summer conditions, found recent University of Colorado Boulder research.
The study, published in the May print issue of the Journal of Ecology, also found that this trend is increasing. In fact, tree mortality in subalpine Colorado forests not affected by fire or bark beetle outbreaks in the last decade has more than tripled since the 1980s.
SAN FRANCISCO, CA--July 22, 2021--To speed up a chemical reaction, a chemist might place the reactants over a Bunsen burner. Adding heat increases the degree of random movements and collisions of particles, accelerating the reaction.
In cell biology, one important "reaction" is the transformation of stem cells into all the other cells in the body, a process known as differentiation. Gladstone Institutes researchers have now discovered a molecular mechanism that acts like a Bunsen burner to "turn up the heat" and accelerate differentiation.
MEADVILLE, PA - July 22, 2021 - Shark Week is many things. First and foremost, it's a week of shark-themed documentary programming on the Discovery Channel. Now in its 33rd year, it's the longest-running cable event in history. It's the biggest audience that marine biologists and ocean conservationists get, attracting millions of viewers who might otherwise not ever think about sharks at all. It's a stage that has launched careers of shark scientists and inspired many others to pursue jobs as ocean scientists.