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Tag: "relationships" at biology news

Understanding the oceans microbes is key to the Earth's future

...raphy of these organisms, their roles in symbiotic relationships and pathogenesis, their metabolic capabilities, their impacts on humans, and goals for research, training, and education in marine microbiology. The report outlines a number of recommendations for future research in marine microbiology including t...

Plants, too, have ways to manage freeloaders

Many, if not all, plants maintain relationships with bacteria, and like any hardworking homeowner,...ot. The finding illustrates the complex symbiotic relationships that have evolved between organisms, ranging from one-sided parasitism to mutualism, a situation in ...

Scientists narrow the time limits for the human and chimpanzee split

...another branch of the tree-like diagram that shows relationships among species, scientists can estimate the time when the species they are studying evolved. In this case, the calibration time the scientists used was the split of Old World monkeys -- including baboons, macaques, and others -- from the branch of th...

Novel protein complex enables survival in hostile environment

...expert in microbial diversity and the evolutionary relationships of prokaryotes, said: "This original work provides important insights into the evolution of the methanogens. These organisms have often been thought to be very limited in their metabolic capabilities. The current study goes a long way to dispelling t...

Did feathered dinosaurs exist?

...urs have long captured the imagination while their relationships have eluded full explanation. Innovative research ...g the current theory about feather origins and the relationships of birds and dinosaurs. All experts agree that birds are related to theropod dinosaurs; however, d...

Newly discovered birdlike dinosaur is oldest raptor ever found in South America

...y thought. Results of an analysis of evolutionary relationships of advanced theropods undertaken as part of this research indicate that the Gondwanan dromaeosaurs and Rahonavis, an animal previously considered to be a very primitive bird, actually constitute a separate branch of the dromaeosaurid family tree. Thi...

Swimming with dolphins can alleviate depression

...ow human health and wellbeing are dependent on our relationships with the natural environment. The study was carried out in Honduras and involved 30 patients diagnosed with mild or moderate depression. Half were assigned to the experimental group and half to the control group. Over a two-week period, participan...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...ts such as aphids and tsetse flies. Many symbiotic relationships are obligate; neither the bacterium nor its host can live without the other. Wernegreen's group focused on the bacterium Blochmannia, which has lived inside Camponotus and related ant genera for the past 30 million years or more. The bacteria may ut...

Housecat-sized Siberian tiger cubs get collared

...an have many silent partners. We need to know the relationships of all these partners to focus on real disease mutations and to minimize attention on the innocent gene variants that colour the humanity of life." Contact: Lon R. Cardon, Ph.D. Professor of Bioinformatics, University of Oxford Phone: +44-...

Studies on human genome variation provide insight into disease

...an have many silent partners. We need to know the relationships of all these partners to focus on real disease mutations and to minimize attention on the innocent gene variants that colour the humanity of life." Contact: Lon R. Cardon, Ph.D. Professor of Bioinformatics, University of Oxford Phone: +44-...

Bacteria in Household Dust May Trigger Asthma Symptoms

...mptoms, asthma medication use, and wheezing. These relationships were strongest for bedroom floor and bedding dust. Households with higher endotoxin concentrations experienced higher prevalence of respiratory symptoms. Endotoxins are found in the cell wall of bacteria and are only released when bacteria ruptures ...

UF scientist finds unexpected link between cat and human AIDS viruses

Emerging relationships between the two viruses could one day lead to a va...inary Medicine, also theorizes that these emerging relationships between the two viruses could one day lead to a vaccine for human AIDS. Results from Yamamoto's res...

DNA traces evolution of extinct sabertooths and the American cheetah-like cat

...ata that help clarify our view of the evolutionary relationships shared by the large predatory cats that once roame..., but it has been difficult to determine the exact relationships of several groups. In the work reported this week, researchers created an updated family tree for th...

Rutgers to lead $52.7 million protein research program

...idual proteins and bring to light new evolutionary relationships among them. "We hope that the PSI will allow us to develop a new view of the relationships between protein sequence, protein structure and protein function that will ultimately make the three...

Environment, not genes, key in family relationships

...a larger role than nurture when it comes to family relationships between adolescents and their parents. Researcher...ent pair, to evaluate the factors that made up the relationships and individual personalities. They broke down adolescent/parent relationships into nine variables ...

Molecular mechanism of feather formation found

...oping feathers. These findings suggest that simple relationships between developmental genes can provide the basis for the formation of complex forms. The researchers predict that a more complicated version of the model can be applied to the formation of more complex feathers. Termed pennaceous, these feathers oc...

Skull study sheds light on dinosaur diversity

...sert in the 1950s and 1960s but whose evolutionary relationships have remained enigmatic. In the 1990s and early 2000s, Wilson restudied the skulls and found characteristics identifying them as skulls of titanosaurs, a late surviving sauropod lineage. "Titanosaurs, which were surprisingly common at the end of the...

DNA from feathers tells tale of eagle fidelity

... handling, to provide a source of DNA to determine relationships among individuals and determine various population parameters. "That we were able to use feathers we collected noninvasively as a source of DNA is the number one thing scientists will be interested in," said Andrew DeWoody, associate professor of ge...

Genomatix, AAAS ink agreement

...ch includes data on signaling components and their relationships organized into pathways. Genomatix developed the BibliospherePE pathway knowledge base and analysis system. It allows for dynamic data-driven network/pathway construction and analysis based on literature, the Genomatix Knowledge Base, and sequence ...

Disrupting Cocaine-memories To Battle Addiction

...ncing techniques with helping them to identify the relationships between the outbreaks in four separate locations, and to define the scope of the outbreaks quickly. The sequencing allowed them to determine if cases reported in other states were related to the four original outbreaks and provided reassurance that a...

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