Vr2: a new apple scab resistance gene

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
A PatocchiC Gessler

Abstract

Reports from several European countries of the breakdown of the Vf resistance, the most frequently used source of resistance in breeding programs against apple scab, emphasize the urgency of diversifying the basis of apple scab resistance and pyramiding different apple scab resistances with the use of their associated molecular markers. GMAL 2473 is an apple scab resistant selection thought to carry the resistance gene Vr. We report the identification by BSA of three AFLP markers and one RAPD marker associated with the GMAL 2473 resistance gene. SSRs associated with the resistance gene were found by (1) identifying the linkage group carrying the apple scab resistance and (2) testing the SSRs previously mapped in the same region. One such SSR, CH02c02a, mapped on linkage group 2, co-segregates with the resistance gene. GAML 2473 was tested with molecular markers associated with other apple scab resistance genes, and accessions carrying known apple scab resistance genes were tested with the SSR linked to the resistance gene found in GMAL 2473. The results indicate that GMAL 2473 does not carry Vr, and that a new apple scab resistance gene, named Vr2, has been identified.

References

Oct 1, 1994·Plant Molecular Biology·B KollerC Gessler
Apr 5, 2003·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R LiebhardC Gessler
Jan 13, 2004·Proceedings of the National Academy of Sciences of the United States of America·Enrico BelfantiSilviero Sansavini
Sep 15, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M GygaxA Patocchi
Jul 1, 1996·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·L GianfranceschiC Gessler
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Citations

Sep 15, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M GygaxA Patocchi
Jul 14, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·S TerakamiT Yamamoto
Mar 7, 2008·Molecular Plant-microbe Interactions : MPMI·Mickael MalnoyHerb S Aldwinckle
Aug 12, 2005·Genome Génome / Conseil National De Recherches Canada·A PatocchiC Gessler
Jan 11, 2007·Genome Génome / Conseil National De Recherches Canada·N ErdinA Patocchi
Sep 26, 2007·Genome Génome / Conseil National De Recherches Canada·S TerakamiT Yamamoto
Jul 25, 2008·Genome Génome / Conseil National De Recherches Canada·V Soufflet-FreslonC-E Durel
May 24, 2011·Annual Review of Phytopathology·Vincent G M BusKim M Plummer
Aug 15, 2006·Fungal Genetics and Biology : FG & B·G A L BrogginiA Patocchi
Apr 7, 2010·Molecular Plant-microbe Interactions : MPMI·Paolo GalliCesare Gessler
Oct 13, 2006·Genome Génome / Conseil National De Recherches Canada·Suresh NaikSchuyler S Korban
Apr 10, 2019·Horticulture Research·Cameron P PeaceStijn Vanderzande

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