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.
Not exact matches
The researchers added that their goal now would be to find out if manipulating TaR1 could boost
resistance against STB
in field grown
wheat.
«These four new
wheat lines showed improved
resistance against powdery mildew
in field trials compared with their parental lines — during the field seasons 2015 to 2017,» explains Teresa Koller, lead author of the study.
The findings of these trials improve our general knowledge of the immune system of plants, and
in particular of fungal disease
resistance of
wheat.
«Isolation of Stb6 is a major breakthrough that will allow deeper understanding of disease
resistance mechanisms operating
in wheat against this important pathogen,» says Kanyuka.
«Nevertheless, this gene will be useful
in combination with other STB
resistance genes, and our study provides tools for rapid lab - based tracing of Stb6
in wheat breeding lines,» says Kanyuka.
Most
resistance genes,
in wheat and other plants, code for protein receptors located inside cells; the Stb6 gene codes for a receptor protein on the cell's surface.
Elizabete Carmo - Silva, LEC lecturer
in plant sciences for food security, said: «Both jointed grass and barley are regarded as valuable genetic resources for improving
wheat disease
resistance, our research suggests that they can also be used to improve biomass production.»
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.
Improved
resistance in more winter
wheat varieties has pushed Dawn to about one - third to halfway down
in the rankings.
Ed Flatman, Head of European
Wheat Breeding at Limagrain said, «Professor Brown and Dr Arraiano's work was one of the very first applications of association genetics in wheat and it has helped us to understand the past history of breeding for resistance to Sept
Wheat Breeding at Limagrain said, «Professor Brown and Dr Arraiano's work was one of the very first applications of association genetics
in wheat and it has helped us to understand the past history of breeding for resistance to Sept
wheat and it has helped us to understand the past history of breeding for
resistance to Septoria.
A new paper from scientists at the John Innes Centre
in Norwich explains why plant breeders have found it difficult to produce
wheat varieties which combine high yield and good
resistance to Septoria, a disease
in wheat which can cut yield losses by up to 50 %.
Fungal genes encode factors that interact with receptors
in the
wheat host to trigger
resistance to disease.
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.
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.
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.
PULLMAN, Wash. — Washington State University researchers have tested all the university's
wheat varieties, as well as others around the Northwest, and found none with the genetically modified herbicide
resistance discovered
in an Oregon crop this spring.
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.
The utility of the gene has not been fully determined but
in the future researchers hope to clone the gene and transfer disease
resistance to other
wheat varieties.
Worse still is when agribusiness and geneticists change the seeds of grasses, with their genetic manipulations converting, for example, 4 - and - a-half-foot tall traditional
wheat into 18 - inch tall high - yield semidwarf strains that now comprise 99 % of all
wheat grown worldwide, or insert various genes for herbicide
resistance, as
in genetically modified corn.
Both dairy (milk, cheese, butter, and yogurt) and gluten (found
in wheat, barley, rye, some oats, spelt, triticale, and kamut) are linked to insulin
resistance and, therefore, weight gain.
Powdered starches like rice starch (commonly found
in gluten - free processed foods) actually spike blood sugar higher than whole
wheat products do, which
in turn can open the door for other health issues, like insulin
resistance and weight gain.
Pledge that at least a few times a week you're going to read something from Dr. Mercola or Suzy Cohen or Dr. Davis /
Wheat Belly or if you're interested
in the science behind the Ketogenic Diet (because I really do believe it heals cells and the liver and reverses insulin
resistance) check out Dr. Nally here.
I think changes
in wheat might be part of the issue, keeping
in mind that refining itself increases the gluten content (which is
in the endosperm, the part retained during refining), but I also think decreasing
resistance to food sensitivities for other reasons is a factor as well.
In a news release, scientists at the meeting, held at a branch of the nonprofit International Maize and Wheat Improvement Center, estimated that 90 percent of the wheat varieties planted by farmers around the world lack resistance to the rust variant, called Ug99 after its discovery in Uganda in 199
In a news release, scientists at the meeting, held at a branch of the nonprofit International Maize and
Wheat Improvement Center, estimated that 90 percent of the wheat varieties planted by farmers around the world lack resistance to the rust variant, called Ug99 after its discovery in Uganda in
Wheat Improvement Center, estimated that 90 percent of the
wheat varieties planted by farmers around the world lack resistance to the rust variant, called Ug99 after its discovery in Uganda in
wheat varieties planted by farmers around the world lack
resistance to the rust variant, called Ug99 after its discovery
in Uganda in 199
in Uganda
in 199
in 1999.