2014
Understanding the genetic basis of glyphosate resistance in kochia (K. scoparia)
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Contributor/Checkoff:
Kansas Soybean Commission
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Mithila Jugulam, Kansas State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Kansas Soybean Commission
(n/a)
Institution Funded:
Kansas State University
(n/a)
Brief Project Summary:

Herbicide Resistance essentially is an inevitable consequence of the use of herbicides as a primary weed control strategy. Despite this inevitability, we must strive to delay the evolution of resistance by using herbicides in ways that are scientifically informed by evolutionary principles. A key aspect in predicting the evolutionary trajectory of a herbicide-resistance trait is to understand the genetic basis of herbicide resistance. Thus, the overall goal of the proposed research is to better predict and manage glyphosate resistance in kochia by understanding the genetic basis; specifically, the inheritance of glyphosate resistance in this weed. The outcome of this research will help determine...

Unique Keywords:
#glyphosate resistant soybean, #weed control, #weed control-herbicide resistance, #weed research
Information And Results
Final Project Results

Update:

View uploaded report Word file

The results of dose-response experiments indicate that the F1 progeny from direct as well as reciprocal crosses were resistant to glyphosate application, suggesting that the glyphosate resistance trait is transmitted via nuclear genes and there was no maternal inheritance of this trait. The F2 progeny segregated 3:1 for glyphosate resistance: susceptibility, suggesting that the glyphosate resistance trait is segregated as a single Mendelian trait. This is a two year research project and we are currently repeating inheritance of glyphosate resistance in kochia study in a different glyphosate resistant population from Kansas. Additional parental population of kochia (from Haskell County, KS) that are non-segregating for glyphosate resistance or susceptibility were identified. These plants are currently being used as parents to generate F1 progeny.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.