These resources are brought to you by the Cooperative Extension System and your Local Institution

Welcome

eXtension is an interactive learning environment delivering the best, most researched knowledge from the smartest land-grant university minds across America.

Find a U.S. Institution

eXtension: more mind reach

Plant Breeding and Genomics Home

Have a question? Try asking one of our Experts

Conifer Translational Genomics Network Online Module 4: Quantitative Genetics

Last Updated: October 06, 2011

View as web page

Authors:

Nicholas Wheeler, Oregon State University

David Harry, Oregon State University

Heather L. Merk, The Ohio State University

This is the fourth module in a series of 16 developed by the Conifer Translational Genomics Network (CTGN). This foundation module reviews principles of quantitative genetics in the context of forest trees.

Introduction

The fourth module from the Conifer Translational Genomics Network (CTGN) series provides a brief glimpse at the world of quantitative genetics. The discipline of quantitative genetics was largely developed by those engaged in applied animal and crop improvement, though contributions are also derived from studies of natural populations. Quantitative genetics deals with metrical traits; those traits that are controlled by many genes (two to 100s), each, generally, with modest effects. Most traits of interest to breeders are quantitatively inherited. Here we introduce some basic concepts and statistical tools used in the trade and discuss some of the issues that present themselves when considering selection based on genetic markers rather than on traits themselves.

Module 4 - Quantitative Genetics

See other Conifer Translational Genomics Network Online Modules

You can also watch the video on YouTube.

References Cited

Crow, J. F. 1997. Birth defects, jimsonweed and bell curves. Genetics 147: 1-6.
Falconer, D. S., and T.F.C. Mackay. 1996. Introduction to quantitative genetics. Longman, Essex, England.
Hartl, D. L., and E. W. Jones. 2001. Genetics: Analysis of genes and genomes, 5th edition. Jones and Barlett, Sudbury, MA.
Pierce, B. 2010. Genetics essentials: Concepts and connections, 1st edition. W.H. Freeman and Co, New York.
White, T. L, W. T. Adams, and D. B. Neale. 2007. Forest genetics. CAB International, Wallingford, United Kingdom. Available online at: http://bookshop.cabi.org/?page=2633&pid=2043&site=191 (verified 27 May 2011).

Cite This Learning Module

Wheeler, N., and D. Harry. Quantitative genetics [Online Learning Module]. Genomics in Tree Breeding and Forest Ecosystem Management, Conifer Translational Genomics Network. eXtension Foundation. Available at: www.extension.org/pages/60384/conifer-translational-genomics-network-online-module-4:-quantitative-genetics (verified MM DD YYYY).

Author Contributions

Nicholas Wheeler and David Harry developed the learning module content.
Heather Merk developed the webpage.

Funding Statement

Support for the Conifer Translational Genomics Network project and the development of the teaching modules hosted here was provided by the USDA/NRI CSREES Plant Genomics Coordinated Agricultural Project (CAP) Award # 2007-55300-18603, the USDA/NIFA AFRI Applied Plant Genomics CAP Award #2009-85606-05680 and the USDA Forest Service. Development of this page was supported in part by the National Institute of Food and Agriculture (NIFA) Solanaceae Coordinated Agricultural Project, agreement 2009-85606-05673, administered by Michigan State University. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the United States Department of Agriculture.

Attachments:

Quantitative Genetics.pdf (1.46 MB)

PBGworks 1103

Browse related Articles by tag: plant breeding genomics

Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.

These resources are brought to you by the Cooperative Extension System and your Local Institution. eXtension provides objective and research-based information and learning opportunities that help people improve their lives. eXtension is an educational partnership of 74 universities in the United States.