Fischer, K.

Habekuß, A.

Piehl, S.

Rotter, B.

Ruge-Wehling, B.

Scholz, M.

Wehling, P.

Winter, P.

Wojacki, J.

English

JKI Open Journal Systems (Julius Kühn-Institut)

Nachwuchswissenschaftlerforum / Young Scientists Meeting 2012 Wojacki et al. 50 Berichte aus dem Julius Kühn-Institut 167. 2012 Molecular characterization of BYDV resistance gene Ryd4Hb introgressed from Hordeum bulbosum into barley  Wojacki, J.1, Ruge-Wehling, B.1, Piehl, S., Fischer, K.1, Scholz, M.1, Habekuß, A.2, Winter, P.3, Rotter, B.3, Wehling, P.1  1 Julius Kühn-Institut, Institute for Breeding Research on Agricultural Crops 2 Julius Kühn-Institut, Institute for Resistance Research and Stress Tolerance  3 GenXPro GmbH Email of corresponding author: Janine.wojacki@jki.bund.de  Barley yellow dwarf virus (BYDV) causes high yield losses worldwide. Thereby aphids play an important role as virus vectors. Such yield losses caused by BYDV may be reduced using virus-tolerance genes from the primary genepool of barley. Additionally, complete resistance to the virus has been introgressed via interspecific crosses from the secondary genepool within the tetraploid wild species Hordeum bulbosum to barley chromosome 3HL. Previous studies indicate that this resistance is governed by a dominant gene, Ryd4Hb. In the present study, a BC2F4 mapping population consisting of 134 individuals was used to establish a molecular-marker map for Ryd4Hb. Using the model genome of Oryza sativa, the Massive Analysis of cDNA Ends (MACE) approach was applied to develop novel markers. One of these markers cosegregated with Ryd4Hb. For a fine-mapping of Ryd4Hb a BC2F6 family of 454 individuals will be used.     

Molecular characterization of BYDV resistance gene Ryd4Hb introgressed from Hordeum bulbosum into barley

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Molecular characterization of BYDV resistance gene Ryd4Hb introgressed from Hordeum bulbosum into barley

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