Tag: "trait" at biology news

Genomics portends the next revolution in agriculture

...ut of an organism to confer or promote a desirable trait in a plant or animal, as is the case in GMO technology, the advent of genomics portends an even more powerful tool as scientists can now rapidly comb the thousands of genes in a genome to see which genes are at work. "The key is you can detect funct...

Deep Green spawns Deep Gene and Deep Time to continue work toward a complete tree of life for the green plants

... two closely related plants, one with a particular trait and one without, to help them reduce the number of genes they need to look at to isolate those responsible for the trait. "Ideally, you could narrow the search down to probably just a few genes from thousands," he said. Alternatively, ancestor-descen...

Genetic map of all plants, animals is goal of genomics

...ring the genes of the plant or animal that had the trait with the genes of those in which the trait was lacking. With genomics, however, scientists take a different approach. They use automated equipm...

Oncogene spawns further mutation in breast cancer study

...athway involving ras mutations. Synergy is a nice trait to find among human endeavors, said Chodosh, But synergy among oncogenes makes my work a little more complex. According to Chodosh, cancer is basically the progress of uncontrolled cell reproduction. The mechanisms that cells use to divide go out of ...

New species arise more quickly than previously believed, UMass researcher finds

... back to belly than their river counterparts. This trait influences mating success, Hendry says. "Deeper-bodied males gain access to more females during mating but, in a river with a strong current, a deep-bodied male would be inefficient hydrodynamically, and would have a more difficult time, so river fis...

Gene identified that may play role in psychological disorders

...lationship between the 5-HTT gene, a psychological trait called anxiety sensitivity, and how the subjects' heart rates responded during the experiment. Anxiety sensitivity - which was tested in the subjects before the experiment began - involves the perception that certain bodily sensations may produce ...

Purdue researcher finds space fertile arena for gene transfers

...he first space experiment, 9 percent exhibited the trait introduced. On earth, less than 1 percent of the control group showed the trait. "The rate of transient expression in a space environment was more than tenfold over the success rate of a comparable terrestrial experiment," Vierling says. Those experi...

USGS scientists find new population of Asian swamp eels in south Florida

...er habitat with a few inches of water." Another trait that could help these fish successful colonize southeastern waterways is that swamp eels are air breathers, enabling them to survive long dry spells. In fact, said Curnutt, their use of air is so efficient that the eels can readily migrate short dist...

'Biomedical switch' regulates how cells stick together and communicates

...d mobile according to the Weizmann study, and this trait is jointly regulated by the rigidity of the surrounding environment and cellular contractility. Using digital microscopic analysis combined with fluorescent proteins expressed in live cells, the team captured time-lapse "movies" revealing the mobilit...

Researchers show that proteins can transmit heritable traits

...cago have altered a protein to transmit a specific trait from one generation of yeast cell to another. Their latest work builds on the discovery of a protein that transmits a genetic trait, a finding that hints at the presence of a menagerie of undiscovered protein-based "genetic elements" that may have ...

Deadly to cattle and humans, prions may help other organisms survive, researchers find

...ut the researchers have detected the prion-forming trait intact in distantly related yeast species spanning...m of the protein is passed on to progeny, this new trait will be passed on as well. Normally, heritable changes in protein function result from mutations in ...

Rapid size change in introduced fruit fly indicates it is evolving as it invades North America

...s with big, massive bills survived and passed that trait to the next generation. He said that D. subobscura has more than decimated the native species, D. psuedo-obscura, in Northwest cities. "If I collected fruit flies in my Seattle backyard, at least 90 percent would be D. subobscura. This is an extre...

A relative of smallpox is first virus found to invade cells as HIV does

...ntified as the strongest source of this protective trait in HIV-resistant people. Genetic analysis has traced the likely emergence of the mutation to a major epidemic about 700 years ago - possibly the European smallpox plague. "The protective mutation in the CCR5 chemokine receptor gene almost certain...

Researchers discover location of a testicular cancer gene

... with the Li-Fraumenisyndrome (an inherited family trait carrying an increased risk of cancer duringchildhood and early adulthood), the identity of genes controlling susceptibilityfor testicular cancer is not known in either humans or in animals. Similarcancer susceptibility genes have already been found f...

Researchers discover genetic basis of heritable sleep disorder

... said Ptácek Eye color is an example of a trait that follows Mendelian inheritancepatterns. In the case of eye color, the gene for brown eyes (B) is dominant tothe gene for blue eyes (b), which is recessive. A person with brown eyes can beBB or Bb. Only the combination of two recessive genes (bb) ...

Jefferson scientist hopes to answer the question, 'Why is it so hard to quit smoking?'

...genetic material from eachsibling. "If you share a trait such as eye color, for example, you're likely tosh...e says. Theresearchers suspect that the behavioral trait for nicotine dependence is relatedin part to genetic makeup. It may involve the genes that control h...

Genetic resistance to chemically-induced diabetes in mice linked to elevated antioxidant levels

...sting that the unusually high free radical defense trait in ALR may provideprotection when transferred into...s to ALS strongly supports the hypothesis that the trait is attributableto a single gene. Drs. Mathews and Leiter have proposed that the genetic resi...

Modifying plant genes without foreign DNA

...etic code for the desiredchanges to be made in the trait of interest. The coated particles are thenbombard... templatesfor directing the cell to create the new trait in a way that does not involveincorporation of the introduced molecules into the plant's DNA. This ...

UT Southwestern researcher finds genetic cause for Gulf War syndrome

DALLAS - June 16, 1999 - A genetic trait can predispose people to Gulf Warsyndrome, a new study has found. In an article published in today's issue of Toxicology and Applied Pharmacology,a UT Southwestern Medical Center at Dallas researcher shows why some veterans ofthe Gulf War may have go...

Mouse Map Leads Way To Human Disease Exploration

...sts studying virtually any human geneticdisease or trait can now quickly locate known matching genes in the mouse byusing a color-coded chromosome mapping system devised by a team led by Julie R.Korenberg, M.D., Ph.D., Cedars-Sinai Vice Chair for Research in the Departmentof Pediatrics. The dramatic findin...

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