Application of Molecular Marker Technology to QA/QC in Plant Breeding
Date of this Version
Plant and Soil Sciences eLibrary (PASSeL) Lessons.
Quality Assurance and Quality Control (QA QC) are key for developing effective plant breeding programs which make the most impact for the resources available. Molecular markers can greatly enhance Quality Assurance and Quality Control in plant breeding. It is therefore important to know what is meant by QA QC, how markers are used in QA and QC, how to assess the resultant data, and how to make decisions on selecting lines to move forward in the breeding-to-market process.
This lesson is written for plant breeders who are interested in or beginning to use molecular marker technology in quality assurance and quality control in plant breeding.
At the end of this lesson you will be able to:
- Define what is meant by Quality Assurance and Quality Control
- Describe how molecular markers can assist in Quality Assurance and Quality Control
- Explain how to effectively utilize markers including how many to use and at which stage in the breeding processes they can be used
- Assess the results of genotyping data and make decisions from that data
While quality assurance (QA) and quality control (QC) have similar goals they are both focused on different aspects of a plant breeding process. In this lesson we covered the role and application of markers in improving QA and QC for a plant breeding program as well as the verification processes required to establish the true identity and genotypes of various germplasm created e.g parental lines, breeding populations, yield lines, etc,. It is essential that breeding data generated by markers is understood and interpreted correctly so as to assure the QC process-thus several examples of tabular data were used in this lesson with explanations that guides the reader in understanding SNP marker generated breeding data before seed production and marketing can start.