Theoretical and Applied Genetics

, Volume 87, Issue 3, pp 392–401

Quantitative trait locus effects and environmental interaction in a sample of North American barley germ plasm

Authors

  • P. M. Hayes
    • Department of Crop and Soil ScienceOregon State University
  • B. H. Liu
    • Department of StatisticsNorth Carolina State University
  • S. J. Knapp
    • Department of Crop and Soil ScienceOregon State University
  • F. Chen
    • Department of Crop and Soil ScienceOregon State University
  • B. Jones
    • USDA/ARS Cereal Crops Research Unit
  • T. Blake
    • Department of Plant and Soil SciencesMontana State University
  • J. Franckowiak
    • Department of Crop and Weed SciencesNorth Dakota State University
  • D. Rasmusson
    • Department of Agronomy and Plant GeneticsUniversity of Minnesota
  • M. Sorrells
    • Department of Plant BreedingCornell University
  • S. E. Ullrich
    • Department of Crop and Soil SciencesWashington State University
  • D. Wesenberg
    • USDA/ARS, National Small Grains Germplasm Research Facility
  • A. Kleinhofs
    • Department of Crop and Soil SciencesWashington State University
Article

DOI: 10.1007/BF01184929

Cite this article as:
Hayes, P.M., Liu, B.H., Knapp, S.J. et al. Theoret. Appl. Genetics (1993) 87: 392. doi:10.1007/BF01184929

Abstract

Quantitative trait locus (QTL) and QTL x environment (E) interaction effects for agronomic and malting quality traits were measured using a 123-point linkage map and multi-environment phenotype data from an F1-derived doubled haploid population of barley (Hordeum vulgare). The QTL × E interactions were due to differences in magnitude of QTL effects. Highly significant QTL effects were found for all traits at multiple sites in the genome. Yield QTL peaks and support intervals often coincided with plant height and lodging QTL peaks and support intervals. QTL were detected in the vicinity of a previously mapped Mendelian maturity locus and known function probes forα- andβ-amylase genes. The average map density (9.6 cM) should be adequate for molecular marker-assisted selection, particularly since there were few cases of alternative favorable alleles for different traits mapping to the same or adjacent intervals.

Key words

QTLRFLP mappingmarker-assisted selectionBarley

Copyright information

© Springer-Verlag 1993