A role for metabolomics in marker-assisted breeding for crop compositional traits?

A. Fait, A. R. Ferniea

Research output: Contribution to journalArticlepeer-review

Abstract

Due to extensive selection pressure most modern crop cultivars display limited genetic variability, a fact that presents a significant barrier in crop improvement. To circumvent this problem there has been much recent effort to reintroduce genetic variability by crossing elite cultivars with exotic germplasm such as wild species and landraces. As a result collections of introgression and recombinant inbred lines (RILs) exist for the majority of the world's most important crops. Whilst these populations are characterized to varying levels of genetic resolution the availability of high-quality genetic maps facilitates their use in marker-assisted selection. When viewed from a horticultural perspective, these populations have arguably been most important in breeding for disease resistance as well as herbicide and salinity tolerance. That said the emergence of high-throughput phenotyping platforms such as transcriptomics, proteomics and metabolomics have facilitated biochemical and molecular analysis at a previously unprecedented level. Here we address the question posed by the title of this article by discussing the application of these methods both as tools to screen biodiversity and to establish quantitative trait loci for crop compositional traits.

Original languageEnglish
Pages (from-to)101-112
Number of pages12
JournalActa Horticulturae
Volume817
DOIs
StatePublished - 28 Feb 2009
Externally publishedYes

Keywords

  • Genomics
  • Marker-assisted selection
  • Metabolomics

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