A practical guide to genetic gain

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

An understanding of the inheritance of quantitative traits, those with a continuous phenotype, was first established in the early 1900s. This was instrumental for breeding because quantitative genetic theory provides the basis for the development of methods which can be used to increase the rate of genetic improvement, referred to as “genetic gain,” within a breeding population over time. Today, the concept of genetic gain and its basis in quantitative genetics is often not well understood among crop breeders and scientists, often resulting in inefficient or ineffective crop improvement efforts. This chapter aims to provide clarity on genetic gain to help those engaged in crop improvement to take actions that will enable them to be more successful. To do so, a thorough introduction to genetic gain and the population improvement cycle is provided along with a review of selection techniques essential for breeding. Next, I demonstrate why genetic improvement on a population basis is needed facilitate variety development. In order to show that the genetic gain is tractable, the theory behind genetic gain and its prediction is explained, followed by a discussion on realized genetic gain including a review of methods that can be used for its estimation. Lastly, guidance is given on how to improve rates of genetic gain in applied breeding programs.

Original languageEnglish (US)
Title of host publicationAdvances in Agronomy
EditorsDonald L. Sparks
PublisherAcademic Press Inc.
Pages217-249
Number of pages33
ISBN (Print)9780128174104
DOIs
StatePublished - 2019
Externally publishedYes

Publication series

NameAdvances in Agronomy
Volume157
ISSN (Print)0065-2113

Fingerprint

genetic improvement
crop improvement
breeding
quantitative genetics
crops
quantitative traits
breeding population
inheritance (genetics)
methodology
phenotype
prediction
crop

Keywords

  • Genetic gain
  • Plant breeding

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science

Cite this

Rutkoski, J. (2019). A practical guide to genetic gain. In D. L. Sparks (Ed.), Advances in Agronomy (pp. 217-249). (Advances in Agronomy; Vol. 157). Academic Press Inc.. https://doi.org/10.1016/bs.agron.2019.05.001

A practical guide to genetic gain. / Rutkoski, Jessica.

Advances in Agronomy. ed. / Donald L. Sparks. Academic Press Inc., 2019. p. 217-249 (Advances in Agronomy; Vol. 157).

Research output: Chapter in Book/Report/Conference proceedingChapter

Rutkoski, J 2019, A practical guide to genetic gain. in DL Sparks (ed.), Advances in Agronomy. Advances in Agronomy, vol. 157, Academic Press Inc., pp. 217-249. https://doi.org/10.1016/bs.agron.2019.05.001
Rutkoski J. A practical guide to genetic gain. In Sparks DL, editor, Advances in Agronomy. Academic Press Inc. 2019. p. 217-249. (Advances in Agronomy). https://doi.org/10.1016/bs.agron.2019.05.001
Rutkoski, Jessica. / A practical guide to genetic gain. Advances in Agronomy. editor / Donald L. Sparks. Academic Press Inc., 2019. pp. 217-249 (Advances in Agronomy).
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