Sentences with phrase «nematode genes»

Another surprise is that the nematode genes identified so far are packed much more tightly together on the chromosome than anyone had previously expected, which suggests that the nematode has many more genes in total than was previously thought.

According to Richard Durbin, who leads the project's informatics team, computer techniques seem to find most of the genes sequenced so far but frequently missed some pieces of them, particularly the short coding regions that occur at the beginning of many nematode genes.

They also created Cavendish lines with Ced9, a nematode gene known to confer resistance to many kinds of plant - killing fungi.

Not exact matches

Did you know that we have only a third the number of genes present in a nematode?

POISONED BY MOM A C. elegans nematode that inherits a gene for the antidote to a maternal toxin grows a normal feeding tube (shown first).

Biologists have for decades discussed how two genes in the familiar lab nematode Caenorhabditis elegans might help embryos build their organs.

In one of her experiments she studied gene expression in nematodes subjected to 15 - G pressures, using Ames's human centrifuge.

Nine lines of Cavendish Grand Nain transformed with the nematode - derived Ced9 gene were also trialled, with one line remaining TR4 - free for the three years

Data published by the International Human Genome Sequencing Consortium indicate that somewhere between 113 and 223 genes present in bacteria and in the human genome are absent in well - studied organisms — such as the yeast Saccharomyces cerevisiae, the fruit fly Drosophila melanogaster and the nematode Caenorhabditis elegans — that lie in between those two evolutionary extremes.

The new method has been tested in greenhouse trials to show that the more copies of the gene, the greater the resistance to soybean cyst nematode.

In the last three years, Byamukama and graduate student Krishna Acharya have collected soil samples from 28 East River counties to determine which resistance gene sources are still effective against the predominant races of Heterodera glycine, or soybean cyst nematode, in South Dakota.

Esvelt plans to develop CRISPR gene drives in nematode worms — a fast - reproducing model organism — that are designed to spread a genetic modification in a local setting and then fizzle out, a concept that other scientists are pursuing.

To ensure the introduced protein didn't interact with other parts of the neuron, the team used the mouse version of the gene rather than the nematode's usual invertebrate version.

One species, Glycine tomentella, was of particular interest because it has genes for resistance to soybean rust and to soybean cyst nematode, he said.

Both studies relied on a popular lab organism known as C. elegans, a nearly microscopic nematode that is fast growing, translucent and has a sequenced genome showing that nearly half its genes are closely related to corresponding human genes.

They had identified a key gene in the beet cyst nematode that makes the cytokinin hormone.

When they took away the ability of the nematode to secrete cytokinin certain cell cycle genes were not activated at the feeding site and the nematodes did not develop.

Tardigrades are missing five of the genes — and nematodes lack exactly the same ones.

All three cytokinin receptor genes were activated where the nematode was feeding.

Now, Mitchum's team is trying to find how this key gene might work differently in other nematode types, like root - knot nematode as part of a new National Science Foundation grant.

A team of researchers at the University of Bonn, in cooperation with scientists from the Sainsbury Laboratory in Norwich, has now identified a gene in thale cress (Arabidopsis thaliana), called NILR1, that helps plants sense nematodes.

Two projects will be done jointly with the Karolinska Institute in Stockholm: Molecular biologist David Baillie of Simon Fraser University in Burnaby, British Columbia, was awarded $ 6.73 million to study protein function in the soil nematode Caenorhabditis elegans, and microbiologist Sherif Abou Elela of the University of Sherbrooke, Quebec, received $ 3.75 million to test modified nucleic acid technologies for determining gene function.

The genome shares about 60 % of its genes with the other invertebrates completely sequenced, such as the nematode and fruit fly, whereas about 5 % match sequences found only — up to now, at least — in the human, mouse, and puffer fish genomes.

Biologists are keen to sequence the nematode's genome because much is already known about the creature's molecular genetics and developmental biology — a state of affairs that should help researchers to assign functions to the genes the sequence reveals.

About 70 per cent of the genes identifed so far in the nematode sequencing project bear little or no resemblance to any genes identified previously.

The finding hinted that genes affecting longevity in the nematode might hold relevance for humans, too.

This in turn should help geneticists work out the functions of human genes, many of which are likely to have sequences similar to those found in the nematode.

Nematodes with these mutated genes also fail to keep in check rogue DNA known as transposons.

«Scientists sequence genomes of microscopic worms beneficial to agriculture: Study identifies gene families in five nematodes that are likely to be involved in parasitism.»

Meanwhile, Esvelt and his colleagues are studying the CRISPR gene - drive system in the nematode Caenorhabditis elegans to learn more about what happens to a population as engineered DNA is passed down through generations, accumulating mutations as it goes.

Gems repeatedly cross-bred ordinary nematodes with a strain modified to overexpress the sirtuin gene sir - 2.1.

Dillman explained that his research team also learned more about gene regulation and the evolution of genomes in general as it compared the five sequences with other nematodes.

Whereas in the nematode experiment the researchers targeted nanoparticles to temperature - sensitive ion channels that naturally exist in the membranes of the worms» nerve cells, the scientists inserted the gene for a heat - activated ion channel called TRPV1 into the human and rat cells.

Now researchers have found that at least one of these genes also functions in nematodes.

Meddling with these genes might one day enable scientists to extend the shelf life of insect - killing nematodes that farmers spray onto crops.

With an eye toward shifting that balance, the scientists inserted into mice a gene called fat - 1, which in nematode worms produces an enzyme that converts omega - 6 fats into omega - 3 fats.

Adam Reid has worked with researchers around the world to discover the genes that let the Strongyloides nematode set up home inside us

«Their duplicated hybrid genome architectures provide these nematodes with multi-copy genes showing diverged sequence and expression patterns where their sexual relatives have very closely related alleles,» says Danchin.

To identify novel genes and conserved cellular processes that regulate the biology of K2P channels in vivo we take advantage of the powerful genetic tools available in the model nematode Caenorhabditis elegans.

A comparison with other organisms reveals that a unicellular protozoan, a nematode worm, and a fly develop and function with 12,000 - 14,000 genes (Table 1).

Estimates varied from 30,000 to 100,000 genes, but the actual figure is 21,000 — barely more than a nematode worm.

Instead of focusing on marine animals, they use animal models such as freshwater zebrafish, salamanders, fruit flies and nematode worms that share many of their genes with humans.

Researchers removed the gene for GFP from jellyfish, cloned it, and introduced it into the cells of the bacterium E. coli and in C. elegans, a soil nematode widely used as a biological model.

Positional cloning ws1 shows it to fall adjacent to the protein coding region of doublesex (dsx, GeneID 100302336), a master sex determination gene found from nematodes to mammals [17], [18].

However, recent research, mostly in insects and nematodes, has highlighted that bacterial to animal LGTs may in fact be a much more important source of novel gene evolution than was originally thought [2], [3].

The latter process is poorly understood, but several examples have been found, including actively transcribed Wolbachia LGTs in the parasitoid Nasonia vitripennis [4], fungal - origin genes for carotenoids in aphids and spider mites [5], [6], and bacterially derived plant cellulases in plant parasitic nematodes [7].

We integrate functional genomic datasets with up - to - date gene and genome annotations, Gene Ontology and pathway annotations, gene orthologs, gene interactions, and a comprehensive set of miRNA - target predictions for human, mouse, zebrafish, and nematgene and genome annotations, Gene Ontology and pathway annotations, gene orthologs, gene interactions, and a comprehensive set of miRNA - target predictions for human, mouse, zebrafish, and nematGene Ontology and pathway annotations, gene orthologs, gene interactions, and a comprehensive set of miRNA - target predictions for human, mouse, zebrafish, and nematgene orthologs, gene interactions, and a comprehensive set of miRNA - target predictions for human, mouse, zebrafish, and nematgene interactions, and a comprehensive set of miRNA - target predictions for human, mouse, zebrafish, and nematode.

The 97 - megabase genomic sequence of the nematode Caenorhabditis elegans reveals over 19,000 genes.

Genes that control the rate of aging have been uncovered by studies of many different species including: birds, rodents (especially mice), humans, yeast, the nematode worm Caenorhabditis elegans, and the fruit fly Drosophila melanosgaster.

Plant - mediated gene silencing has shown promise for control of viruses, nematodes, and certain insects.