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AGR2304 Plant Breeding

Semester 2, 2022 Toowoomba On-campus
Units : 1
Faculty or Section : Faculty of Health, Engineering and Sciences
School or Department : School of Agriculture and Environmental Science
Grading basis : Graded
Course fee schedule : /current-students/administration/fees/fee-schedules

Staffing

Examiner:

Requisites

Pre-requisite: BIO1101

Overview

Agriculture is one of Australia鈥檚 major industries and the Darling Downs region is a major centre for several government and commercial plant breeding organisations. The course is designed to introduce the student to the principles and practice of plant breeding and to associated areas of plant diversity, speciation and taxonomy and the evolution of important crop plants. These principles and practices form an essential part of the training of plant biologists.

The course allows student to develop skills in both the theoretical and practical aspects of plant breeding. The course commences with a review of the historical importance of plant breeding. This is followed by a review of conventional strategies for plant breeding and the application of recent advances in plant biotechnology to enhance the efficiency of selection with major breeding programs. The course concludes with a review of plant genetic engineering and its major applications to date. Practical work in the course, via a residential workshop, includes a study of plant breeding strategies, the isolation of plant DNA and generation of molecular markers. This is followed by a series of visits to local plant breeding field stations. During the course, the history and evolution of several major crops is followed to demonstrate the practical application of many theoretical concepts in plant breeding.

This course contains a highly recommended residential school for both external and on-campus students.

Course learning outcomes

On completion of this course students should be able to:

  1. Apply basic botanical knowledge of plant variability, taxonomy, speciation and selection;
  2. Compare and evaluate method of plant introduction, quarantine, genetics, the generation of variability and, breeding for particular target traits such as disease resistance;
  3. Discuss and examine approaches to undertaking successful plant breeding programs;
  4. Apply practical and theoretical skills in the application of biotechnology to plant breeding.

Topics

Description Weighting(%)
1. Brief history of the development of plant breeding and centres of variation 5.00
2. Commercial aspects of plant breeding: Cultivar release and plant variety rights; Conservation of plant genetic resources 5.00
3. Genetic structure of plants: Chromosomal and extrachromosomal inheritance. Ploidy in plants; Interspecific hybridization 15.00
4. Qualitative inheritance in plants; Genetic variation in plants and its assessment including genetic mapping technologies 20.00
5. Qualitative inheritance in plants and its assessment; Genotype x Environment interaction; Genetic basis of selection theory and response to selection including heterosis and inbreeding. The application of statistical and field techniques in plant breeding 20.00
6. Plant breeding strategies for Self-pollinating and cross-pollinating crops. The development of synthetic varieties 20.00
7. Plant biotechnology and genetic engineering 15.00

Text and materials required to be purchased or accessed

Acquaah G 2020, Principles of Plant Genetics and Breeding, 3rd edn, Wiley-Blackwell. (ISBN 978-1119626329).

Student workload expectations

To do well in this subject, students are expected to commit approximately 10 hours per week including class contact hours, independent study, and all assessment tasks. If you are undertaking additional activities, which may include placements and residential schools, the weekly workload hours may vary.

Assessment details

Approach Type Description Group
Assessment
Weighting (%) Course learning outcomes
Assignments Written Quiz No 10 2,3,4
Assignments Written Report No 20 1,2
Assignments Written Problem Solving No 20 2,3,4
Examinations Non-invigilated Take home examination No 50 1,2,3,4
Date printed 10 February 2023