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Tag: "sequenced" at biology news

One species, many genomes

...th that of the genome of the lab strain, which was sequenced in the year 2000. Using a very elaborate procedure...r one, they qualify the value of the model genomes sequenced so far. "There isn’t such a thing as the genome of a species," says Weigel. He adds "The insight t...

A new plant-bacterial symbiotic mechanism promising for crop applications

...e nodules only on their roots. The researchers sequenced (3) the genes of two bacterial strains of Bradyrhizobium, ORS278 and BTAi1, in order to find out their genetic make-up and identify the genes involved in this rather special form of symbiosis. These bacteria were found to have no nod genes, usually e...

Caribbean frogs started with a single, ancient voyage on a raft from South America

... said. To make their discovery, the researchers sequenced the DNA of nearly 300 species of Caribbean, Central American, and South American frogs and used three mitochondrial genes and two nuclear genes in their study, building trees of relationships among the species and timing the divergences of the specie...

Exploring the dark matter of the genome

...mage. Both heterochromatin and euchromatin are sequenced using a method called whole-genome shotgun sequencing. Celniker says, "We grind up whole flies and produce libraries of DNA fragments of two sizes, some that are 2 kilobases long" -- a kilobase (Kb) is 1,000 bases -- "and some that are 10 kilobases l...

Mutating the entire genome

...tated. Because the whole mouse genome has been sequenced – the order and location of base pairs determined in detail – scientists can identify locations in individual mice where the jumping genes have carried pieces of loxP DNA. Then, they can select a mouse with loxP on both sides of the large piece of DN...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

...C. botulinum genome are absent from the other five sequenced clostridia, and only 16 per cent of the C. botulinum genes are common to all five. Our findings emphasise just how different clostridia are from each other." C. botulinum toxin stops nerves from working — the basis of its use in medicine to cont...

Corals -- More complex than you?

...mes of several iconic Australian species have been sequenced overseas, and we are being left behind. If important discoveries leading to new technologies are made, we will have to pay to import them. "Sequencing a coral genome is a real contribution which Australia can make to human knowledge ?with potentia...

New technique will produce a better chromosome map

...ome of the fruit fly, Drosophila melanogaster, was sequenced in 2000, and yet its relationship to chromosome structure remains unclear. "Since we want to know what genes are involved in the development of different structures in living systems, this is the first structure to look at," Novikov said. "This i...

DOE JGI sets 'gold standard' for metagenomic data analysis

...exity by mixing pieces of over one hundred already sequenced isolate organisms. This approach allowed us to qua...ng. Genome assembly is the process of putting the sequenced fragments back in order, in effect, putting Humpty Dumpty back together again, to recreate the ident...

Genome of yellow fever/dengue fever mosquito sequenced

...equencing DNA in chromosomes, scientists have also sequenced large amounts of messenger RNAs collected from different mosquito tissues at distinct developmental stages. Matching a messenger RNA to a predicted gene will validate authenticity of this gene." The TE team, lead by the Tu laboratory, uncovered a...

Super-fermenting fungus genome sequenced

... chips, grasses, or trees such as poplar, recently sequenced by DOE JGI. Under current strategies for generati... encountered in the gut of insects, from where the sequenced strain was originally isolated. FPL has a Cooperative Research and Development Agreement (CRADA) ...

Mine runoff continues to provide clues to microbial diversification

... could study organisms related to those completely sequenced ?such as the bacterial clades, or ‘cousins,?that are likely to exist in natural environments. “This also might have implications into helping study human proteomics because not everyone’s individual genome will be sequenced.? The pink microbial ...

Horse genome assembled

..., which means, on average, each base pair has been sequenced almost seven times over. Researchers can access the horse genome sequence data through the following public databases: GenBank ( www.ncbi.nih.gov/Genbank ) at NIH's National Center for Biotechnology Information (NCBI); NCBI's Map Viewer ( www.ncbi.nl...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

... Israel Deaconess Medical Center have captured and sequenced tiny pieces of collagen protein from a 68 million-...edical School and HMS instructor in pathology, who sequenced the protein fragments over the course of a year and a half using highly sensitive mass spectrometry ...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...human primate, after the chimp, to have its genome sequenced and is the first of Old World monkeys to have its DNA deciphered. "The sequencing of the rhesus macaque genome, combined with the availability of the chimp and human genomes, provides researchers with another powerful tool to advance our understa...

Darwin's famous finches and Venter's marine microbes

...ouple of months wading through roughly 7.7 million sequenced snippets of sea-borne genomic DNA to impose order on the flood of data and to classify the identified proteins. Their findings are detailed in series of papers, published in this week’s online edition of the journal Public Library of Science Biol...

Scientists sequence genome of parasite responsible for common sexually transmitted infection

...es as determined by computer models and previously sequenced parasitic genomes. Repetitive genes accounted for roughly 65 percent of the genome. "Parasites generally have smaller amounts of DNA than non-parasitic organisms, but in this case, there was ten times as much DNA than we originally thought there w...

Stopping plants from getting sick

...quence and characterize one gene. Now that we have sequenced the genome of a smut fungus, I can look through thousands of genes on my desktop computer." Kronstad is now using his NSERC-funded research as a foundation to fight an outbreak of the yeast fungus Cryptococcus on Vancouver Island, applying his res...

Deep in the ocean, a clam that acts like a plant

...w, the genome of this symbiont has been completely sequenced and published in Science. "The difference here is that while plants get their energy and carbon via photosynthesis by chloroplast symbionts, this clam gets its energy via chemosynthesis," said Jonathan Eisen, a professor at the UC Davis Genome Cente...

Faster, low cost sequencing technologies needed to drive era of personalized medicine

...mately 10,000 times more bases per day than can be sequenced using current technologies. By increasing the spe...ct, billions of base pairs of genomic DNA could be sequenced on a single, cookie crumb-sized one centimeter by one centimeter chip. The technique uses hybridiza...

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