QTL analysis of tolerance to a German strain of BYDV-PAV in barley (Hordeum vulgare L.)

K. S. Scheurer, W. Friedt, W. Huth, R. Waugh, F. Ordon (Lead / Corresponding author)

Research output: Contribution to journalArticle

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Abstract

One hundred and forty six barley doubled-haploid lines (DH lines) were tested for variation in grain yield, yield components, plant height, and heading date after artificial infection with a German isolate of barley yellow dwarf virus (BYDV-PAV-Braunschweig). Of these 146 lines 76 were derived from the cross of the barley yellow dwarf virus (BYDV) tolerant cultivar 'Post' to cv 'Vixen' (Ryd2) and 70 from the cross of Post to cv 'Nixe'. Phenotypic measurements were gathered on both non-infected plants and plants artificially inoculated with BYDV-PAV by viruliferous aphids in pot and field experiments for three years at two locations. For all traits a continuous variation was observed suggesting a quantitative mode of inheritance for tolerance against BYDV-PAV. Using skeleton maps constructed using SSRs, AFLPs and RAPDs, two QTLs for relative grain yield per plant after BYDV infection, explaining about 47% of the phenotypic variance, were identified in Post x Vixen at the telomeric region of chromosome 2HL and at a region containing the Ryd2 gene on chromosome 3HL. In Post x Nixe, a QTL was found in exactly the same chromosome 2HL marker interval. In this cross, additional QTL were mapped on chromosomes 7H and 4H and together these explained about 40% of the phenotypic variance. QTL for effects of BYDV infection on yield components, plant height, and heading date generally mapped to the same marker intervals, or in the vicinity of the QTL for relative grain yield, on chromosomes 2HL and 3HL, suggesting that these regions are of special importance for tolerance to the Braunschweig isolate of BYDV-PAV. Possible applications of marker-assisted selection for BYDV tolerance based on these results are discussed.

Original languageEnglish
Pages (from-to)1074-1083
Number of pages10
JournalTheoretical and Applied Genetics
Volume103
Issue number6-7
DOIs
Publication statusPublished - 24 Dec 2001

Fingerprint

Luteovirus
Barley yellow dwarf virus-PAV
Barley yellow dwarf virus
Hordeum
Hordeum vulgare
quantitative trait loci
barley
chromosomes
grain yield
heading
phenotypic variation
yield components
Chromosomes
Plant Structures
infection
Virus Diseases
doubled haploids
marker-assisted selection
amplified fragment length polymorphism
skeleton

Keywords

  • Barley (Hordeum vulgare L.)
  • Barley yellow dwarf virus (BYDV-PAV)
  • QTL analysis
  • Tolerance

Cite this

Scheurer, K. S. ; Friedt, W. ; Huth, W. ; Waugh, R. ; Ordon, F. / QTL analysis of tolerance to a German strain of BYDV-PAV in barley (Hordeum vulgare L.). In: Theoretical and Applied Genetics. 2001 ; Vol. 103, No. 6-7. pp. 1074-1083.
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QTL analysis of tolerance to a German strain of BYDV-PAV in barley (Hordeum vulgare L.). / Scheurer, K. S.; Friedt, W.; Huth, W.; Waugh, R.; Ordon, F. (Lead / Corresponding author).

In: Theoretical and Applied Genetics, Vol. 103, No. 6-7, 24.12.2001, p. 1074-1083.

Research output: Contribution to journalArticle

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T1 - QTL analysis of tolerance to a German strain of BYDV-PAV in barley (Hordeum vulgare L.)

AU - Scheurer, K. S.

AU - Friedt, W.

AU - Huth, W.

AU - Waugh, R.

AU - Ordon, F.

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KW - Barley yellow dwarf virus (BYDV-PAV)

KW - QTL analysis

KW - Tolerance

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