Home  |  Top News  |  Most Popular  |  Video  |  Multimedia  |  News Feeds  |  Feedback
  Medicine  |  Nature & Earth  |  Biology  |  Technology & Engineering  |  Space & Planetary  |  Psychology  |  Physics & Chemistry  |  Economics  |  Archaeology
Top > Medicine, Health Care >

2 Y Genes Can Replace the Entire Y Chromosome for Assisted Reproduction in Mice

Published: November 21, 2013.
Released by University of Hawaii at Manoa  

The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the Y chromosome contribution limited to only two genes: the testis determinant factor Sry and the spermatogonial proliferation factor Eif2s3y.


Full Story »


More news from University of Hawaii at Manoa


space
Comet Wild 2: A Window into the Birth of the Solar System?
Our solar system, and other planetary systems, started as a disk of microscopic dust, gas, and ice around the young Sun. The amazing diversity of objects in the solar system today - the planets, moons, asteroids, and comets - was made from this primitive dust. NASA's Stardust mission returned to Earth with samples of comet Wild 2, a comet that originated outside the orbit of Neptune and was subsequently kicked closer to Earth's orbit in 1974 when Jupiter's gravity altered Wild 2's orbit.

space
UH-led Team Successfully Observes the Solar Eclipse over the Arctic
The international Solar Wind Sherpas team, led by Dr. Shadia Habbal of the University of Hawaii at Manoa Institute for Astronomy, braved Arctic weather to successfully observe the total solar eclipse of March 20 from Longyearbyen on the island of Spitsbergen in the Svalbard archipelago east of northern Greenland. Their preliminary results are being presented Thursday at the Triennial Earth-Sun Summit in Indianapolis, IN.

space
Robotically Discovering Earth's Nearest Neighbors
A team of astronomers using ground-based telescopes in Hawaii, California, and Arizona recently discovered a planetary system orbiting a nearby star that is only 54 light-years away. All three planets orbit their star at a distance closer than Mercury orbits the sun, completing their orbits in just 5, 15, and 24 days.

nature
Dive Discovers Missing Aircraft Hangar of Sunken WW II-era Japanese Submarine
The dramatic discovery of a lost World War II-era Imperial Japanese Navy mega-submarine by a University of Hawai'i and U.S. National Oceanic and Atmospheric Administration (NOAA) team in December 2013 inspired a new search by NHK, the Japanese Broadcasting Corporation, to find key missing pieces of the battleship.

space
A Cold Cosmic Mystery Solved
In 2004, astronomers examining a map of the radiation leftover from the Big Bang (the cosmic microwave background, or CMB) discovered the Cold Spot, a larger-than-expected unusually cold area of the sky. The physics surrounding the Big Bang theory predicts warmer and cooler spots of various sizes in the infant universe, but a spot this large and this cold was unexpected.

nature
Ocean-scale Dataset Allows Broad View of Human Influence on Pacific Coral Reef Ecosystems
As man-made threats to coral reefs mount and interest in conserving reef ecosystems grows, scientists have turned to studying extremely remote and uninhabited reefs in an effort to understand what coral reefs would be like in the absence of humans. A number of islands and atolls in the Pacific Ocean remain virtually untouched by human influence, situated hundreds of kilometers from the nearest human populations.

nature
New Research Predicts a Doubling of Coastal Erosion by Mid-century in Hawai'i
Chronic erosion dominates the sandy beaches of Hawai'i, causing beach loss as it damages homes, infrastructure, and critical habitat. Researchers have long understood that global sea level rise will affect the rate of coastal erosion. However, new research from scientists at the University of Hawaii - M?noa (UHM) and the Hawai'i Department of Land and Natural Resources brings into clearer focus just how dramatically Hawai'i beaches might change.

biology
New Research Finds Oceanic Microbes Behave in a Synchrony Across Ocean Basins
Researchers from the University of Hawai'i - M?noa (UHM) and colleagues found that microbial communities in different regions of the Pacific Ocean displayed strikingly similar daily rhythms in their metabolism despite inhabiting extremely different habitats - the nutrient-rich waters off California and the nutrient-poor waters north of Hawai'i. Furthermore, in each location, the dominant photoautotrophs - light-loving bacteria that need solar energy to help them photosynthesize food from inorganic substances - appear to initiate a cascade effect wherein the other major groups of…

Related »

Semen 
5/23/12 
Researchers Identify Genetic Markers to Predict Male Fertility
The diagnosis of male fertility is usually performed through the observation of the sperm in the microscope. However, a …
Infertility 
5/24/12 
Male Fertility Genes Discovered
A new study has revealed previously undiscovered genetic variants that influence fertility in men. The findings, published by Cell …
Therapy 
10/4/10 
Radiation Pharmacogenomics Identifies Biomarkers That Could Personalize Cancer Treatment
October 5, 2010 – Radiation therapy is used to treat more than half of all cancer cases, but patient …
Placenta 
5/27/14 
Why Are Girl Babies Winning in the Battle for Survival?
Sexual inequality between boys and girls starts as early as in the mother's womb – but how and why …
Sterile 
5/13/15 
Stanford Scientists Find Genetic Signature Enabling Early, Accurate Sepsis Diagnosis
Investigators at the Stanford University School of Medicine have identified a pattern of gene activity that could help scientists …
Radiation 
12/17/12 
Berkeley Lab Scientists Developing Quick Way to Id People Exposed to Ionizing Radiation
There's a reason emergency personnel train for the aftermath of a dirty bomb or an explosion at a nuclear …
Tibetans 
5/13/10 
★★ 
Tibetans Developed Genes to Help Them Adapt to Life at High Elevations
SALT LAKE CITY—Researchers have long wondered why the people of the Tibetan Highlands can live at elevations that cause …
More » 
 
© Newsline Group  |  About  |  Privacy Policy  |  Feedback  |  Mobile