Advances in wheat breeding techniques

Alison Bentley, Ian Mackay

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The breeder’s equation (Lush, 1937) is a statistical summation of the evolution of quantitative traits. It measures the change in the mean of a population over a single generation as a function of the selection differential (a measure of the difference in mean trait values between selected individuals and the entire population; Falconer and Mackay, 1996). The complexity of multi-locus inheritance (quantitative variation involving many genes) is distilled into the narrow sense heritability h2, the proportion of variation attributed to additive genetic effects. Breeding is targeted at increasing the rate of genetic gain via the components of the equation. This encompasses increasing the selection intensity (the number of individuals selected), the selection accuracy (the precision by which individuals are selected), genetic variation and reducing the years per breeding cycle. All methods of wheat breeding operate within the parameters of the breeder’s equation and new technology must be assessed within the context of increasing the rate of genetic gain.
Original languageEnglish
Title of host publicationAchieving sustainable cultivation of wheat
Subtitle of host publicationBreeding, quality traits, pests and diseases
EditorsPeter Langdridge
Place of PublicationLondon
PublisherBurleigh Dodds Science Publishing
Chapter3
Pages53-76
Number of pages24
Volume1
Edition1
ISBN (Electronic)9781351114257
DOIs
Publication statusFirst published - 31 Oct 2017

Fingerprint

breeding methods
wheat
genetic improvement
breeding
selection intensity
quantitative traits
inheritance (genetics)
heritability
genetic variation
loci
genes
methodology

Keywords

  • wheat
  • plant breeding

Cite this

Bentley, A., & Mackay, I. (2017). Advances in wheat breeding techniques. In P. Langdridge (Ed.), Achieving sustainable cultivation of wheat: Breeding, quality traits, pests and diseases (1 ed., Vol. 1, pp. 53-76). London: Burleigh Dodds Science Publishing. https://doi.org/10.4324/9781351114257
Bentley, Alison ; Mackay, Ian. / Advances in wheat breeding techniques. Achieving sustainable cultivation of wheat: Breeding, quality traits, pests and diseases. editor / Peter Langdridge. Vol. 1 1. ed. London : Burleigh Dodds Science Publishing, 2017. pp. 53-76
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Bentley, A & Mackay, I 2017, Advances in wheat breeding techniques. in P Langdridge (ed.), Achieving sustainable cultivation of wheat: Breeding, quality traits, pests and diseases. 1 edn, vol. 1, Burleigh Dodds Science Publishing, London, pp. 53-76. https://doi.org/10.4324/9781351114257

Advances in wheat breeding techniques. / Bentley, Alison; Mackay, Ian.

Achieving sustainable cultivation of wheat: Breeding, quality traits, pests and diseases. ed. / Peter Langdridge. Vol. 1 1. ed. London : Burleigh Dodds Science Publishing, 2017. p. 53-76.

Research output: Chapter in Book/Report/Conference proceedingChapter

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Bentley A, Mackay I. Advances in wheat breeding techniques. In Langdridge P, editor, Achieving sustainable cultivation of wheat: Breeding, quality traits, pests and diseases. 1 ed. Vol. 1. London: Burleigh Dodds Science Publishing. 2017. p. 53-76 https://doi.org/10.4324/9781351114257