Sentences with phrase «rust resistance genes»

She did her PhD research in a collaborative project involving Punjab Agricultural University and the John Innes Centre, UK, to deploy stripe and leaf rust resistance genes from non-progenitor wild wheat in commercial cultivars.

Not exact matches

This makes me happy: a research project has identified a gene that gives wheat plants resistance to one of the most deadly races of the wheat stem rust pathogen, Ug99.

The effort has already had one practical result: the discovery of two new genes for resistance to a race of wheat stem rust to which there is virtually no resistance in wheat.

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

Instead of having to overcome one major resistance factor, the rust fungi face plants that have a number of weaker, or minor, resistance genes.

«Soybean genotypes carrying Rpp1b, Rpp2, Rpp3, and Rpp5a resistance genes, and cultivars Hyuuga and UG5 (carrying more than one resistance gene), were observed to be resistant against most of the African rust strains, and therefore may be useful for soybean - breeding programs in Africa and elsewhere,» Hartman says.

Eduard Akhunov, associate professor of plant pathology at Kansas State University, and his colleague, Jorge Dubcovsky from the University of California - Davis, led a research project that identified a gene that gives wheat plants resistance to one of the most deadly races of the wheat stem rust pathogen — called Ug99 — that was first discovered in Uganda in 1999.

Next, researchers isolated the candidate gene and used biotechnical approaches to develop transgenic plants that carried the Sr35 gene and showed resistance to the Ug99 race of stem rust.

«For example, a breeder might succeed in adding a favorable allele for stem rust resistance from a wild barley, but along with that gene drag along another gene that causes shattering of the mature head,» Close said.

A gene isolated from one of the earliest cultivated wheat species, Einkorn wheat (Triticum monococcum), confers resistance to a deadly version of stem rust, scientists report June 27 in Science.

Stem rust, named for the blackening pustules that infect plant stems, caused devastating crop epidemics and famine for centuries before being tamed by fungicides and resistance genes.

«The greatest hope for achieving durable resistance to rust diseases is to make wheat's resistance genetically complex, combining several genes and resistance mechanisms,» Singh explained.

Numerous stem rust resistance (Sr) genes are known and in recent years several of these have been cloned and used to develop so - called «perfect» markers to allow more rapid and accurate breeding.

Their first effort involves transferring a gene from jointed goatgrass, a wild relative of wheat, to confer resistance to stripe rust.

A three - phase experiment was conducted on a doubled - haploid population derived from the cross RL4452 / AC Domain to determine if the resistance of a recently discovered gene (Lr2BS) worked with other resistance genes to synergistically enhance resistance to leaf rust.

There are two general types of resistance genes found in wheat: Race - specific genes confer a high - level of resistance to specific strains of leaf rust but can be easily overcome by genetic mutation in pathogen populations, while slow rusting (APR) resistance provides partial resistance to a broad spectrum of races, but is typically effective only at the adult stage of plant growth.

It appears that the synergistic effect of some multiple gene combinations, including Lr2BS, enhances leaf rust resistance.