Tag: "phylogeny" at biology news

The Bug Stops Here

... Dewhirst and Paster are masters of microbial phylogeny andcharacterization. They have identified bacteria from such varied sites as mouseintestines, 57-year-old Dead Sea water, bird feces, and termite guts. The"flashlight" they use to illuminate the shadowy phylogenetic relationshipsbetween microorganism...

New University of Georgia study indicates possible ancient origin for retroviruses, the class to which HIV belongs

...arly, the authors assert. (Acolor slide of the new phylogeny is available on request from the authors.) "The genome sequencing of model experimental organisms like C. elegansand humans is providing an unprecedented opportunity to examine the evolutionaryrelationships that exist among retroelements," sa...

Study illustrates diversification, speciation in biological "islands"

...tion and speciation events on the islands. "The phylogeny is indispensable," Losos said. "Only with the unde...biology at Villanova University, reconstructed the phylogeny while he was a postdoctoral fellow working in the laboratory of Allan Larson, Ph.D., professor of bi...

Gondwana split sorts out mammalian evolution

...olutionary biology and genomics. "A well resolved phylogeny offers a good framework for performing other studies," notes Springer. "It allows for better predictions on what fossils may look like and where they might be found in different parts of the world. Our findings are also likely to assist genomicists...

Researcher turns brown algae phylogeny upside down

... from the Leiden University has turned brown algae phylogeny completely upside down. His research shows that fe...n in the current study. Biologists can use the new phylogeny to reorder the division Phaeophyta (brown algae). This new classification can be based on natural gr...

Evolution upset: Oxygen-making microbes came last, not first

...niversity of California at Berkeley. Her bacterial phylogeny research is currently under review for publication in the journal Molecular Phylogenetics and Evolution. Blank is an Assistant Professor of Molecular Geobiology in the Department of Earth and Planetary Sciences at Washington University in St. Louis....

Gift creates KSU Human Origins Study Institute

...cal human family tree. This is important work, but phylogeny alone tells us virtually nothing of the unique forces that converged to launch what may be the only life-form in the universe capable of self-realization." Elements of the Ferrini Institute will include: The Matthew Ferrini Endowed Chair in Biologica...

Ant agriculture: 50 million years of success

...s research paper is that the scientists now have a phylogeny for the weed fungi, an association that appears to be very ancient. The collaboration that produced this work is supported by a five-year National Science Foundation special program (Integrated Research Challenges in Environmental Biology) grant, a...

Scientists find evidence for crucial root in the history of plant evolution

...have been using this method for years. "The entire phylogeny of plants is based on this technique," Cody continues. "I said, well, that's organic matter; we can actually analyze that." To do so, the researchers used scanning transmission X-ray microscopy (STXM, or "stixum"). This involved mounting the fossil i...

Researchers find a pattern in evolution of lizard groups

...sions, the researchers produced a detailed genetic phylogeny (think of a branching family tree) for all species and physical data for the different species body types. Co-author James A Schulte, Ph.D., a former member of the Losos and Larson laboratories, now a post-doctoral researcher at the Smithsonian Museu...

National Science Foundation announces $14M planetary biodiversity inventory awards

... unprecedented scale and the first to be framed by phylogeny rather than place. "They have the potential to transform how biodiversity exploration is done and will train a new generation of experts, complement existing research programs and make thousands of species newly available for scientific study," said ...

Araucariaceae of New-Caledonia: endemic species in danger

...estigations have not yet elucidated the origin and phylogeny of the different species. The Araucariaceae in New Caledonia are all trees. The Agathis species are voluminous trees developing some of the densest, most closed canopy of the forests. Agathis lanceolata can be up to 2.5 m in diameter and reach 40 m h...

Rapidly evolving genes providing new insights in plant evolution

...ssue of the American Journal of Botany (Angiosperm phylogeny based on matK sequence information1). Flowering plants include cereals such as wheat, barley, ryes, and corn; major starch plants such as potatoes and sweet potatoes; legumes such as soybeans, beans, and peanuts; all of our fruit crops, spices, and...

Proven method of bone analysis may clarify human origins

...eplicate with the temporal bone data the molecular phylogeny of the hominoids down to the subspecies level," K...iques, which are very useful in reconstructing the phylogeny or kinship of the ancestors of living species, are useless here because these species have no living...

UC San Diego bioinformatics experts help reconstruct the genomic makeup of our ancestors

...mosome. So essentially we are solving the original phylogeny problem -- how to reconstruct the genomic architecture of our mammalian ancestor." The Rat Genome Sequencing Project Consortium is led by the Human Genome Sequencing Center at Baylor College of Medicine (BCM-HGSC) in Houston, in conjunction with the ...

Washington University in St. Louis plays key role in sequencing moss genome

...osition of Physcomitrella patens in the land plant phylogeny will clearly lead to further understanding of land plant evolution using comparative genomics. These approaches will open doors of understanding into plant genomes." Although the genome will be sequenced in the United States, Quatrano noted that t...

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