A novel major gene on chromosome 6H for resistance of barley against the barley yellow dwarf virus

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Rients E NiksFrank Ordon

Abstract

In a mapping population derived from the Ethiopian barley line L94 x Vada, natural infection by barley yellow dwarf virus (BYDV) occurred. While line L94 hardly showed symptoms, Vada was severely affected. The 103 recombinant inbred lines segregated bimodally. The major gene responsible for this resistance mapped to chromosome 6H. We propose to name the locus Ryd3. A subset of recombinant inbred lines, L94, and Vada were planted in a subsequent field test which confirmed the previous field observations. Double antibody sandwich enzyme-linked immunosorbent assays (DAS-ELISA) indicated that the epidemic was due to a combination of the serotypes BYDV-PAV and BYDV-MAV. In the accessions with the least BYDV symptoms no virus was detected, justifying the consideration of the gene as conferring true resistance rather than tolerance to these viruses. In a laboratory/gauze house trial a near-isogenic line carrying the Vada chromosome 6H fragment in an L94 background was affected as much as Vada. The effect of Ryd3 was quantified, and compared with that of the only other known major gene for resistance to BYDV, Ryd2, which is also of Ethiopian origin and is located on chromosome 3H. Both genes seemed to reduce the chance of the viral iso...Continue Reading

References

Dec 5, 2000·Genetics·L RamsayR Waugh
Jan 30, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·J Le GouisF Ordon
Jan 1, 1997·Annual Review of Phytopathology·W A Miller, L Rasochová
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Citations

Sep 23, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·C WagnerW Friedt
Jul 9, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Margret ScholzPeter Wehling
Nov 12, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Monique JuergensFrank Ordon
Mar 19, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Christine RiedelFrank Ordon
Oct 14, 2010·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Getu Dereje Kassa
Jul 16, 2014·Frontiers in Plant Science·Dryas de RondeRichard Kormelink
Apr 4, 2020·Pest Management Science·Louise Mc NamaraEmmanuel Jacquot
Jul 1, 2014·Crop Science·Isabel A Del BlancoJ Dubcovsky

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