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Sex, Tools And Chromosomes

Published: April 12, 2012.
By University of California - Davis
http://www.ucdavis.edu

Researchers at the University of California, Davis have discovered a key tool that helps sperm and eggs develop exactly 23 chromosomes each. The work, which could lead to insights into fertility, spontaneous miscarriages, cancer and developmental disorders, is published April 13 in the journal Cell.


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Advances in Electron Microscopy Reveal Secrets of HIV And Other Viruses
UC Davis researchers are getting a new look at the workings of HIV and other viruses thanks to new techniques in electron microscopy developed on campus.
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First Amphibious Ichthyosaur Discovered, Filling Evolutionary Gap
The first fossil of an amphibious ichthyosaur has been discovered in China by a team led by researchers at the University of California, Davis. The discovery is the first to link the dolphin-like ichthyosaur to its terrestrial ancestors, filling a gap in the fossil record. The fossil is described in a paper published in advance online Nov. 5 in the journal Nature.
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Science Casts Light on Sex in the Orchard
Persimmons are among the small club of plants with separate sexes -- individual trees are either male or female. Now scientists at the University of California, Davis, and Kyoto University in Japan have discovered how sex is determined in a species of persimmon, potentially opening up new possibilities in plant breeding. The work is published Oct. 31 in the journal Science.
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Making Lab-grown Tissues Stronger
Lab-grown tissues could one day provide new treatments for injuries and damage to the joints, including articular cartilage, tendons and ligaments. Cartilage, for example, is a hard material that caps the ends of bones and allows joints to work smoothly. UC Davis biomedical engineers, exploring ways to toughen up engineered cartilage and keep natural tissues strong outside the body, report new developments this week in the journal Proceedings of the National Academy of Sciences.
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UC Davis Scientists Discover Exact Receptor for DEET That Repels Mosquitoes
DEET has been the gold standard of insect repellents for more than six decades, and now researchers led by a University of California, Davis, scientist have discovered the exact odorant receptor that repels them. They also have identified a plant defensive compound that might mimic DEET, a discovery that could pave the way for better and more affordable insect repellents. Findings from the study appear in the journal Proceedings of the National Academy of Sciences.
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