Genes governing resistance to Puccinia hordei in thirteen spring barley accessions

Leaf rust, caused by Puccinia hordei, is an important disease of barley in many parts of the world. In the eastern United States, this disease was effectively controlled for over 20 years through the deployment of cultivars carrying the resistance gene Rph7. Isolates of P. hordei with virulence for...

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Autores: Brooks, W.S, Griffey, C.A, Steffenson, B., Vivar, H.E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2000
País:México
Institución:Centro Internacional de Mejoramiento de Maíz y Trigo
Repositorio:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/21357
Acceso en línea:https://hdl.handle.net/10883/21357
Access Level:acceso abierto
Palabra clave:AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
BARLEY
PUCCINIA HORDEI
RUSTS
GENETIC RESISTANCE
ALLELES
SELECTION CRITERIA
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spelling Genes governing resistance to Puccinia hordei in thirteen spring barley accessionsBrooks, W.SGriffey, C.ASteffenson, B.Vivar, H.E.AGRICULTURAL SCIENCES AND BIOTECHNOLOGYBARLEYPUCCINIA HORDEIRUSTSGENETIC RESISTANCEALLELESSELECTION CRITERIALeaf rust, caused by Puccinia hordei, is an important disease of barley in many parts of the world. In the eastern United States, this disease was effectively controlled for over 20 years through the deployment of cultivars carrying the resistance gene Rph7. Isolates of P. hordei with virulence for Rph7 appeared in this region in the early 1990s rendering barley cultivars with this gene vulnerable to leaf rust infection. From a preliminary evaluation test, 13 accessions from diverse geographic locations possessed resistance to P. hordei isolate VA90-34, which has virulence for genes Rph1, 2, 4, 6, 7, 8, and 11. Each of these 13 accessions was crossed with susceptible cvs. Moore or Larker to characterize gene number and gene action for resistance to P. hordei. Additionally, the 13 accessions were intercrossed and crossed to host differential lines possessing genes Rph3, Rph5, and Rph9 to determine allelic relationships of resistance genes. Seedlings of F1, F2, and BC1F1 populations were evaluated in the greenhouse for their reaction to P. hordei isolate VA90-34. Leaf rust resistance in six of the accessions including Collo sib, CR270.3.2, Deir Alla 105, Giza 119, Gloria, and Lenka is governed by a single dominant gene located at or near the Rph3 locus. All accessions for which the gene Rph3 was postulated to govern leaf rust resistance, except for Deir Alla 105, likely possess an allele different than Rph3.c found in Estate based on the differential reaction to isolates of P. hordei. The resistance gene in Grit and Donan is located at or near the Rph9 locus. Alleles at both the Rph3 and Rph9 loci confer resistance in Femina and Dorina. In addition to Rph3, Caroline and CR366.13.2 likely possess a second unknown recessive gene for leaf rust resistance. Resistance in Carre 180 is governed by a recessive gene that is different from all other genes considered in this study. Identification of both known and unique genes conferring leaf rust resistance in the barley germplasm included in this study provides breeding programs with the knowledge and opportunity to assess currently used sources of leaf rust resistance and to incorporate new sources of resistance into their programs.1131-1136American Phytopathological Society (APS)2021-04-16T20:18:47Z2021-04-16T20:18:47Z2000Published Versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10883/2135710.1094/PHYTO.2000.90.10.113110901943-7684Phytopathologyreponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYTinstname:Centro Internacional de Mejoramiento de Maíz y Trigoinstacron:CIMMYTEnglishSt. Paul, MN (USA)CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.Open Accessinfo:eu-repo/semantics/openAccessoai:repository.cimmyt.org:10883/213572024-10-11T19:55:20Z
dc.title.none.fl_str_mv Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
title Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
spellingShingle Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
Brooks, W.S
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
BARLEY
PUCCINIA HORDEI
RUSTS
GENETIC RESISTANCE
ALLELES
SELECTION CRITERIA
title_short Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
title_full Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
title_fullStr Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
title_full_unstemmed Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
title_sort Genes governing resistance to Puccinia hordei in thirteen spring barley accessions
dc.creator.none.fl_str_mv Brooks, W.S
Griffey, C.A
Steffenson, B.
Vivar, H.E.
author Brooks, W.S
author_facet Brooks, W.S
Griffey, C.A
Steffenson, B.
Vivar, H.E.
author_role author
author2 Griffey, C.A
Steffenson, B.
Vivar, H.E.
author2_role author
author
author
dc.subject.none.fl_str_mv AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
BARLEY
PUCCINIA HORDEI
RUSTS
GENETIC RESISTANCE
ALLELES
SELECTION CRITERIA
topic AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
BARLEY
PUCCINIA HORDEI
RUSTS
GENETIC RESISTANCE
ALLELES
SELECTION CRITERIA
description Leaf rust, caused by Puccinia hordei, is an important disease of barley in many parts of the world. In the eastern United States, this disease was effectively controlled for over 20 years through the deployment of cultivars carrying the resistance gene Rph7. Isolates of P. hordei with virulence for Rph7 appeared in this region in the early 1990s rendering barley cultivars with this gene vulnerable to leaf rust infection. From a preliminary evaluation test, 13 accessions from diverse geographic locations possessed resistance to P. hordei isolate VA90-34, which has virulence for genes Rph1, 2, 4, 6, 7, 8, and 11. Each of these 13 accessions was crossed with susceptible cvs. Moore or Larker to characterize gene number and gene action for resistance to P. hordei. Additionally, the 13 accessions were intercrossed and crossed to host differential lines possessing genes Rph3, Rph5, and Rph9 to determine allelic relationships of resistance genes. Seedlings of F1, F2, and BC1F1 populations were evaluated in the greenhouse for their reaction to P. hordei isolate VA90-34. Leaf rust resistance in six of the accessions including Collo sib, CR270.3.2, Deir Alla 105, Giza 119, Gloria, and Lenka is governed by a single dominant gene located at or near the Rph3 locus. All accessions for which the gene Rph3 was postulated to govern leaf rust resistance, except for Deir Alla 105, likely possess an allele different than Rph3.c found in Estate based on the differential reaction to isolates of P. hordei. The resistance gene in Grit and Donan is located at or near the Rph9 locus. Alleles at both the Rph3 and Rph9 loci confer resistance in Femina and Dorina. In addition to Rph3, Caroline and CR366.13.2 likely possess a second unknown recessive gene for leaf rust resistance. Resistance in Carre 180 is governed by a recessive gene that is different from all other genes considered in this study. Identification of both known and unique genes conferring leaf rust resistance in the barley germplasm included in this study provides breeding programs with the knowledge and opportunity to assess currently used sources of leaf rust resistance and to incorporate new sources of resistance into their programs.
publishDate 2000
dc.date.none.fl_str_mv 2000
2021-04-16T20:18:47Z
2021-04-16T20:18:47Z
dc.type.none.fl_str_mv Published Version
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/10883/21357
10.1094/PHYTO.2000.90.10.1131
url https://hdl.handle.net/10883/21357
identifier_str_mv 10.1094/PHYTO.2000.90.10.1131
dc.language.none.fl_str_mv English
language_invalid_str_mv English
dc.rights.none.fl_str_mv Open Access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Open Access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv St. Paul, MN (USA)
dc.publisher.none.fl_str_mv American Phytopathological Society (APS)
publisher.none.fl_str_mv American Phytopathological Society (APS)
dc.source.none.fl_str_mv 10
90
1943-7684
Phytopathology
reponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
instname:Centro Internacional de Mejoramiento de Maíz y Trigo
instacron:CIMMYT
instname_str Centro Internacional de Mejoramiento de Maíz y Trigo
instacron_str CIMMYT
institution CIMMYT
reponame_str Repositorio Institucional de Publicaciones Multimedia del CIMMYT
collection Repositorio Institucional de Publicaciones Multimedia del CIMMYT
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