Mapping of genes regulating abiotic stress tolerance in cereals

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The location of major QTLs or even genes controlling abiotic stress tolerance is now possible by the application of marker-mediated techniques. This is achieved by exploiting precise genetic stocks, such as doubled haploids (DHs), recombinant substitution lines (RSLs) and recombinant inbred lines (RILs), along with the comprehensive genetic maps now available through the application of molecular marker techniques. These strategies are illustrated here showing how QTLs/genes affecting vernalization response, cold tolerance, osmotic adjustment, osmolite accumulation (free amino acids, polyamines and carbohydrates), salt tolerance and cold-regulated protein accumulation have been identified and located. Also, an example of marker-assisted selection (MAS) for frost tolerance is presented. Major loci and QTLs affecting stress tolerance in Triticeae have been mapped on the group 5 chromosomes, where the highest concentration of abiotic stress-related QTLs (vernalization response, frost tolerance, salt tolerance and osmolite accumulation) was located. A conserved region with a major role in osmotic adjustment has been located on the group 7 chromosomes.

Original languageEnglish
Pages (from-to)235-247
Number of pages13
JournalActa Agronomica Hungarica
Volume50
Issue number3
DOIs
Publication statusPublished - 2002

Fingerprint

stress tolerance
abiotic stress
chromosome mapping
quantitative trait loci
frost resistance
vernalization
salt tolerance
chromosomes
substitution lines
doubled haploids
polyamines
marker-assisted selection
cold tolerance
free amino acids
inbred lines
genes
carbohydrates
loci
genetic markers
methodology

Keywords

  • Abiotic stress
  • Drought tolerance
  • Frost tolerance
  • Mapping
  • QTLs
  • Wheat

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Mapping of genes regulating abiotic stress tolerance in cereals. / Galiba, G.

In: Acta Agronomica Hungarica, Vol. 50, No. 3, 2002, p. 235-247.

Research output: Contribution to journalArticle

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