Agronomy and Horticulture Department
Marker-Assisted Selection
Date of this Version
2005
Document Type
Article
Citation
Plant and Soil Sciences eLibrary (PASSeL) Lesson
Abstract
A method of selecting desirable individuals in a breeding scheme based on DNA molecular marker patterns instead of, or in addition to, their trait values. A tool that can help plant breeders select more efficiently for desirable crop traits.
Objectives and Overview
Marker-assisted selection (MAS) is a method of selecting desirable individuals in a breeding scheme based on DNA molecular marker patterns instead of, or in addition to, their trait values. When used in appropriate situations, it is a tool that can help plant breeders select more efficiently for desirable crop traits. However, MAS is not always advantageous, so careful analysis of the costs and benefits relative to conventional breeding methods is necessary.
Upon completing this lesson you should be able to:
- Explain the basic concepts of MAS.
- List the prerequisites for implementing a MAS program.
- Explain the potential advantages and drawbacks of MAS.
- Describe how MAS is used to select for a major gene in a backcross conversion program.
- Describe how MAS is used to select multiple genes controlling a quantitative trait.
Modules:
- Lesson home
- Marker-Assisted Selection - Objectives and Overview
- Marker-Assisted Selection Introduction
- Prerequisites for an efficient marker-assisted selection program
- Potential advantages of MAS
- Potential drawbacks of MAS
- Conducting a MAS program
- Marker-assisted backcrossing for a single gene
- Marker-assisted selection for multiple genes
- Summary and future outlook
- References for Markers-Assisted Selection
- Glossary
Comments
Copyright © 2005 Patrick Byrne and Kelley Richardson. Used by permission.
JNRLSE approved 2005
This project was supported in part by the National Research Initiative Competitive Grants CAP project 2011-68002-30029 from the USDA National Institute of Food and Agriculture, administered by the University of California-Davis and by the National Science Foundation (NSF), Division of Undergraduate Education, National SMETE Digital Library Program, Award #0938034, administered by the University of Nebraska. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the USDA or NSF.
Development of this lesson was supported in part by USDA Initiative for Future Agriculture and Food Systems (IFAFS) and the Cooperative State Research, Education, & Extension Service, U.S. Dept. of Agriculture under Agreement Number 00-52100-9710. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the U.S. Department of Agriculture.