Sentences with phrase «single resistance gene»

Dr Ton added: «Plant immunity that is controlled by a single resistance gene, on which most conventional breeding programs are based, is comparably easy to overcome by a pathogen.

And yet, a single resistance gene can quickly lose its effectiveness.

Not exact matches

Microbes could load these donated genes together on a single piece of DNA, accelerating the spread of resistance even further.

Plant breeders have discovered that a single gene, the SUB1 gene, confers resistance to submergence of up to 14 days.

Others might be engineered to include nutrients like beta carotene, iron, and vitamin A. Instead of one gene to fight off insects or disease, crops will be engineered with «stacks» of resistance genes to prevent pests from evolving resistance to a single approach.

Growing resistance to malaria drugs in Southeast Asia is caused by a single mutated gene inside the disease - causing Plasmodium falciparum parasite, according to a study led by David Fidock, PhD, professor of microbiology & immunology and of medical sciences (in medicine) at Columbia University Medical Center.

«The bad news about our finding is that it shows that resistance can arise through single mutations in one gene and pop up anywhere, at any time,» Dr. Fidock says.

The researchers, led by Dr Charles Wondji, used a wide range of methods to narrow down how the resistance works, finding a single mutation in the GSTe2 gene, which makes insects break down DDT so it's no longer toxic.

By adding a single gene from wheat, researchers have created fungus - resistant trees that pass their resistance on to their offspring and, hopefully, subsequent generations too (see «American chestnut set for genetically modified revival «-RRB-.

Companies selling Bt seeds hope to avoid that in part by designing plants that make more than one Bt toxin, but this strategy may not work if resistance to several toxins is tied to a single gene, says Tabashnik, who is now at the University of Arizona.

As a result, most possess only a single disease - resistance gene.

In a study, published in Science, they investigated a gene region that contains a particular single nucleotide variant associated with increased risk for developing colorectal and prostate cancers — and found that removing this region caused dramatic resistance to tumor formation.

The most famous one is the gene that causes sickle cell anemia: While two copies of that gene cause a disease that's devastating in its own right, a single copy creates a healthy child with strong malarial resistance.

Because disease organisms mutate quickly to overcome crop resistance controlled by single genes, researchers are rushing to identify new resistance genes and to incorporate multiple genes into high - yielding varieties, according to Ravi Singh, CIMMYT wheat scientist who participated in the reported study.

Earlier cases of resistance were largely due to mutations in single genes — trump cards that immediately made for invincible parasites.

The nucleases were capable of pushing out an undesirable trait in a plant — such as a gene for a chemical that acted as an environmental pollutant when consumed by livestock — and replacing it with a desirable trait, such as herbicide resistance, in a single shot.

To this end, we determined the susceptibility of 38 NAPCR1 isolates to ten antibiotics from seven classes using E-tests or macrodilution tests and examined 31 NAPCR1 whole - genome sequences to identify single nucleotide polymorphisms and genes that could explain the observed resistance phenotypes.

No significant differences were seen between the normoxic and hypoxic anoikis - resistant populations collected from MCF7 cells and a single significant gene change (PIP) was seen in T47D (Table 1) suggesting that the CSC - enriched population remains virtually unchanged following hypoxic culture and the increase in MFC, HFC, and tumor initiating cells is, therefore, due to expansion of the population, perhaps by increased symmetric self - renewal of the CSC or de-differentiation of early progenitor cells, rather than simply the acquisition of anoikis resistance in non-CSC.

The team of researchers in collaboration with Patricia Okubura, a USDA - ARS research geneticist, confirmed that resistance was conferred by a single gene.

Back in March of this year, however, Monsanto admitted that pink bollworms had developed resistance to Bt cotton in the Indian state of Gujarat, in plots where the single gene variety (Bollgard I) of the GM crop was planted.

There are genes that confer resistance to every single antibiotic we use to cure gonorrhea.

There are genes out there that confer resistance to every single antibiotic we use to cure gonorrhea.