Investigation of Genetic Basis of 2,4-D and Dicamba Resistance in Palmer amaranth
Sustainable Production
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):
Leveraged Funding (Non-Checkoff):
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Institution Funded:
Brief Project Summary:

The goal of this research is to determine the inheritance of 2,4-D and dicamba resistance in Palmer amaranth through classical genetic approaches. Understanding the genetic basis of herbicide resistance is important to formulate viable weed management strategies to delay herbicide resistance evolution. If the outcome suggests that a single, nuclear, dominant gene confers 2,4-D or dicamba resistance in Palmer amaranth, then resistance can spread faster compared to a recessive trait. If the results suggest that resistance is a multi-genic trait, then weed management practices are recommended to reduce the spread of resistance.

Key Benefactors:
farmers, agronomists, applicators, ag retailers

Information And Results
Project Deliverables

The results from the experiments outlined in this proposal will provide for the first-time information about the inheritance of 2,4-D and dicamba resistance in Palmer amaranth. An important aspect in predicting the evolutionary track of an herbicide-resistance trait is to understand the genetic basis of herbicide resistance. Evolution of herbicide resistance in weeds is a consequence of the intense selection pressure applied primarily by using herbicides as the main weed control strategy. Despite the inevitable selection for herbicide-resistant weed biotypes, we must constantly investigate possible strategies to delay the evolution of resistance that results from using herbicides.

Final Project Results

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.