Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat

Leaf rust of wheat (Triticum aestivum L.) caused by the fungus Puccinia triticina (formerly P. recondita f. sp. tritici), is one of the most important foliar diseases of this crop. Lr37 rust resistance gene, which confers resistance in wheat against leaf rust, was introgressed into cultivated wheat...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Bulos,Mariano, Echarte,Mariel, Sala,Carlos
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2006
Materias:	diversity marker assisted selection Puccinia triticina Triticum aestivum translocation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500014
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-34582006000500014
record_format	dspace
spelling	oai:scielo:S0717-345820060005000142007-01-04Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheatBulos,MarianoEcharte,MarielSala,Carlos diversity marker assisted selection Puccinia triticina Triticum aestivum translocation Leaf rust of wheat (Triticum aestivum L.) caused by the fungus Puccinia triticina (formerly P. recondita f. sp. tritici), is one of the most important foliar diseases of this crop. Lr37 rust resistance gene, which confers resistance in wheat against leaf rust, was introgressed into cultivated wheat from Aegilops ventricosa Tausch. Rust races with virulence to Lr37 have been identified in different countries, but it still provides resistance to a wide range of races and is useful in combination with other resistance genes. There are no reports about the presence, frequency and origin of Lr37 in Argentinean wheat cultivars. In this work, we analyzed 88 registered Argentinean wheat cultivars developed by different breeding companies and institutions during the last 15 years by means of a molecular marker which is diagnostic of the 2NS-2AS translocation which carries Lr37. Only 4 cultivars showed the amplification product associated with this chromosome fragment. These four cultivars which carry the translocated 2NS-2AS chromosome were registered by the same breeding company during the last seven years and all of them have European germplasm in their genealogy. To the best of our knowledge this is the first report of the presence of Lr37 in registered South American cultivars.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.9 n.5 20062006-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500014en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	diversity marker assisted selection Puccinia triticina Triticum aestivum translocation
spellingShingle	diversity marker assisted selection Puccinia triticina Triticum aestivum translocation Bulos,Mariano Echarte,Mariel Sala,Carlos Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat
description	Leaf rust of wheat (Triticum aestivum L.) caused by the fungus Puccinia triticina (formerly P. recondita f. sp. tritici), is one of the most important foliar diseases of this crop. Lr37 rust resistance gene, which confers resistance in wheat against leaf rust, was introgressed into cultivated wheat from Aegilops ventricosa Tausch. Rust races with virulence to Lr37 have been identified in different countries, but it still provides resistance to a wide range of races and is useful in combination with other resistance genes. There are no reports about the presence, frequency and origin of Lr37 in Argentinean wheat cultivars. In this work, we analyzed 88 registered Argentinean wheat cultivars developed by different breeding companies and institutions during the last 15 years by means of a molecular marker which is diagnostic of the 2NS-2AS translocation which carries Lr37. Only 4 cultivars showed the amplification product associated with this chromosome fragment. These four cultivars which carry the translocated 2NS-2AS chromosome were registered by the same breeding company during the last seven years and all of them have European germplasm in their genealogy. To the best of our knowledge this is the first report of the presence of Lr37 in registered South American cultivars.
author	Bulos,Mariano Echarte,Mariel Sala,Carlos
author_facet	Bulos,Mariano Echarte,Mariel Sala,Carlos
author_sort	Bulos,Mariano
title	Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat
title_short	Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat
title_full	Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat
title_fullStr	Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat
title_full_unstemmed	Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat
title_sort	occurrence of the rust resistance gene lr37 from aegilops ventricosa in argentine cultivars of wheat
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500014
work_keys_str_mv	AT bulosmariano occurrenceoftherustresistancegenelr37fromaegilopsventricosainargentinecultivarsofwheat AT echartemariel occurrenceoftherustresistancegenelr37fromaegilopsventricosainargentinecultivarsofwheat AT salacarlos occurrenceoftherustresistancegenelr37fromaegilopsventricosainargentinecultivarsofwheat
_version_	1718441759469469696

Occurrence of the rust resistance gene Lr37 from Aegilops ventricosa in Argentine cultivars of wheat

Ejemplares similares