Sugar-coated sea urchin eggs could have sweet implications for human fertility
...fferent ocean depths, so there is little chance of hybrids turning up. But in other places, such as the water...he same time and occupy the same waters, and still hybrids are rare. The purple sea urchin has been the most closely studied of the urchins and for years has ...Genetic barrier to self-pollination identified
...f-incompatibility, then all seeds produced will be hybrids resulting from cross-pollination between two different lines. This would facilitate the production and increase the yield of hybrid seed and, at the same time, reduce the labor costs....UCLA chemists develop new coating for nanoscale probes
...sts,' 'protein switches' and many other functional hybrids of inorganic-organic substances. "The possibilities are endless," Weiss said. "For example, just imagine the potential for this process in cancer treatment, if a hybrid nanoparticle could be created that was specifically targeted to ......h lower levels of tannins in the Fremont and close hybrids as opposed to the high tannin levels in narrowleaf cottonwoods. The more Fremont gene markers present in the wood, the lower the tannin levels, suggesting the "tastier wood" that the beavers preferred was due to a specific genotype. "In contra...Chestnut trees to spread across landscape again, says Purdue scientist
...egeneration Center are developing blight-resistant hybrids for eventual planting throughout Indiana. He has established a large test stand of hybrid trees at Purdue's Horticulture Park, and as part of his continuing work to develop a blight-resistant line, he plans to inoculate these trees with the fungus to...Computer method identifies potentially active enzymes
...irst we have the computer program generate all the hybrids that could form using ITCHY," says Saraf. "Then w... structure and function, however, clashes occur in hybrids when they retain fragments from original enzymes that are not compatible with each other. "Pairs of...Could memory performance and spatial learning be genetically based?
...brother-to-sister mating of F1 (R female x S male) hybrids to produce and F2 male segregation population (n=178). Behavioral testing was performed on parental, F1 and F2 cohorts at 12 weeks of age. The Morris water maze (MWM) task was performed using a circular water maze and a computer tracking system. A ci...Growing human organs on the farm
...animals look like normal sheep rather than strange hybrids like the "geep", created by fusing the embryos of a sheep and goat. In some cases the human liver cells cluster together to form functional, fully human liver units, says Graca Almeida-Porada of the Nevada team. These units could be transplanted wh...Purdue researchers solve decades-old corn, sorghum problem
...t been put into commercial use partly because corn hybrids grown in the United States are not excessively tall. In addition, br2 tends to produce barren plants when grown at high densities. Furthermore, the equipment in use in the United States today would not be able to effectively harvest significantly sho...Aggregation of cloned mouse embryos improves survival rate
...o birth. The researchers found that when the clone hybrids were transferred back into the uteri of recipient mice, the survival rate jumped to 8 percent. The researchers even produced a litter of four cloned mouse pups, in stark contrast to the typical single pup born. Cloning requires the precise genetic r...Cross-species mating may be evolutionarily important and lead to rapid change, say IUB researchers
...are believed to have evolved somewhat recently, as hybrids of the two parental sunflower species, between 60,...spectively. The researchers also created their own hybrids of H. annuus and H. petiolaris. The researchers found that their synthetic hybrids quickly acquired ...Models show gene flow from crops threatens wild plants
... wild populations shrink in size because crop-wild hybrids are less fertile. "Genetic assimilation and demographic swamping could change a wild plant in some way that might be important for its survival in some habitats or for other organisms that depend on them for their survival," says Haygood. "The poten...Rutgers geneticists redefine the nature of hybrid corn
...able success. Heterosis is the robustness seen in hybrids when different lines are crossed and result in hig... the two parents," he continued. "Not only do the hybrids benefit from genes added by both parents, but their inheritance also includes additional regulatory ...Genetically modified crops not necessarily a threat to the environment
...know they will," Rieseberg said. "Even if the wild hybrids are partially sterile or inviable, genes will still move across the farm property barrier. So it's really the fitness effects of a gene that dictate the speed at which it spreads. Genes that aren't advantageous to the wild plants will spread very slo...Programmable antibodies-- hybrid cancer therapy described by scientists at Scripps
... is general enough that it could be used to design hybrids against any number of cancers. "A single antibody ...th a linker. And while the antibody portion of the hybrids kept them circulating, the small-molecule portion guided them towards cancer cells. In this case, th...Carnegie Mellon University chemists create versatile polymer brushes
...der stress. By creating these nano-scale molecular hybrids using ATRP, the Matyjaszewski lab has created extremely durable materials that won't crack. These materials could work well as a coating for cars, where you want to combine a hard surface to avoid scratches with soft bulk properties to avoid cracking...MIT study: Hydrogen car no environmental panacea
...engines and transmissions and expanding the use of hybrids is the way to go. These results come from a system...t 'evolved' technology, and future gasoline engine hybrids will not be far behind, the study says....Genetically modified crops in India produced greater yields, reduced pesticide use, new study finds
... Seed Company (Mahyco), which has been studying Bt hybrids in India since 1997. The farm sites contained three adjacent plots that measured 646 square meters each. One plot was planted with cotton bioengineered with a gene from the insecticidal bacterium Bacillus thuringiensis (Bt), the second with the same...Nitrogen may increase Bt levels in corn
...l armyworm and southwestern cornborer. The Bt corn hybrids provide farmers with an alternative to avoid costl...hese pests without the use of pesticides. Two corn hybrids with different types of Bt toxin were used in the experiment. These hybrids were grown in pots in th......n generations of plants. The team found wild and hybrids had similar survival rates, but the wild plants pr...enes can persist even when the first generation of hybrids perform quite poorly compared to the wild plants," said Snow. The group's research offers new ways f...