Genetic analysis of the components of winterhardiness in barley (hordeum vulgare L.)

I. Karsai, K. Mészáros, Z. Bedő, P. M. Hayes, A. Pan, F. Chen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Winterhardiness in cereals is tire consequence of a number of complex and interacting components: cold tolerance, vernalization requirement and photoperiod sensitivity. An understanding of the genetic basis of these component traits should allow for more effective selection. Genome map-based analyses hold considerable promise for dissecting complex phenotypes. A 74-point linkage map was developed from one hundred doubled haploid lines derived from a winter x spring barley cross and used as the basis for quantitative trait locus (QTL) analyses to determine the chromosome location of genes controlling components of winterhardiness. Despite the greater genome coverage provided by the current map, a previously-reported interval on chromosome 7 remains the only region where significant QTL effects for winter survival were detected in this population. QTLs for heading date under 24 h light map to the same region. A QTL for heading date under this photoperiod regime also maps to chromosome 2. A distinct set of QTLs mapping to chromosomes 1, 2, 3 and 5 determined heading date under 8 h light. Patterns of differential QTL expression underscore the complexity of winterhardiness.

Original languageEnglish
Pages (from-to)67-76
Number of pages10
JournalActa Biologica Hungarica
Volume48
Issue number1
Publication statusPublished - 1997

Fingerprint

Quantitative Trait Loci
genetic analysis
Hordeum
barley
Hordeum vulgare
genetic techniques and protocols
quantitative trait loci
Chromosomes
chromosome
Chromosomes, Human, Pair 2
Photoperiod
heading
Genes
chromosomes
photoperiod
Genome
Gene Components
Light
genome
Chromosomes, Human, Pair 5

Keywords

  • Barley
  • Photoperiod
  • QTL
  • Vernalization
  • Winterhardiness

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Genetic analysis of the components of winterhardiness in barley (hordeum vulgare L.). / Karsai, I.; Mészáros, K.; Bedő, Z.; Hayes, P. M.; Pan, A.; Chen, F.

In: Acta Biologica Hungarica, Vol. 48, No. 1, 1997, p. 67-76.

Research output: Contribution to journalArticle

Karsai, I. ; Mészáros, K. ; Bedő, Z. ; Hayes, P. M. ; Pan, A. ; Chen, F. / Genetic analysis of the components of winterhardiness in barley (hordeum vulgare L.). In: Acta Biologica Hungarica. 1997 ; Vol. 48, No. 1. pp. 67-76.
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