Virus-Induced Gene Silencing-Based Functional Characterization of Genes Associated with Powdery Mildew Resistance in Barley (Record no. 42070)

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fixed length control field 02583nam a2200277Ia 4500
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control field MX-MdCICY
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control field 20250625124707.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-7748
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Title Virus-Induced Gene Silencing-Based Functional Characterization of Genes Associated with Powdery Mildew Resistance in Barley
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Volume/sequential designation Plant Physiology, 138, p.2155-2164, 2005
520 3# - SUMMARY, ETC.
Summary, etc. We successfully implemented virus-induced gene silencing (VIGS)in barley (Hordeum vulgare)for the functional characterization of genes required for Mla13-mediated resistance toward the biotrophic barley pathogen Blumeria graminis f. sp. hordei. Initially, barley cultivars were screened for their ability to host the barley stripe mosaic virus (BSMV)-VIGS vector by allowing its replication and systemic movement without causing excessive symptoms. Phytoene desaturase silencing leading to photobleaching was used as a phenotypic marker alongside reverse transcription-PCR data to characterize the silencing response at the molecular level. Barley cultivar Clansman, harboring the Mla13 resistance gene, was chosen as the most suitable host for BSMV-VIGS-based functional characterization of Rar1, Sgt1, and Hsp90 in the Mla-mediated resistance toward powdery mildew.BSMV-induced gene silencing of these candidate genes, which are associated in many but not all race-specific pathways, proved to be robust and could be detected at bothmRNAand protein levels for up to 21 d postinoculation. Systemic silencing was observed not only in the newly developed leaves from the main stem but also in axillary shoots. By examining fungal development from an incompatible mildew strain carrying the cognate Avr13 gene on plants BSMV silenced for Rar1, Sgt1, and Hsp90, a resistance-breaking phenotype was observed, while plants infected with BSMV control constructs remained resistant. We demonstrate that Hsp90 is a required component for Mla13-mediated race-specific resistance and that BSMV-induced VIGS is a powerful tool to characterize genes involved in pathogen resistance in barley.
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Personal name Hein, I.
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Personal name Barciszewska-Pacak, M.
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Personal name Hrubikova, K.
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Personal name Williamson,
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Personal name Dinesen, M.
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Personal name Soenderby, I.E.
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Personal name Sundar, S.
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Personal name Sundar, S.
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Personal name Shirasu, K.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lacomme, C.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/15N33-LQOtGhUHZG9vmLXNRiIzPtOyCe2/view?usp=drivesdk">https://drive.google.com/file/d/15N33-LQOtGhUHZG9vmLXNRiIzPtOyCe2/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-7748 25.06.2025 25.06.2025 Documentos solicitados