Mapping quantitative resistance to septoria tritici blotch in spelt wheat

The foliar wheat disease septoria tritici blotch can cause significant yield losses. A source of resistance has been mapped on chromosome 7D of spelt wheat, <i>Triticum aestivum</i> L. subsp. <i>spelta</i> (L.) Thell. The microsatellite-based genetic map was constructed from...

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Autores principales: Simón, María Rosa, Khlestkina, Elena K., Castillo, Nadia, Börner, Andreas
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Naturales
Mycosphaerella graminicola
QTL mapping
Septoria tritici
Triticum aestivum L. subsp. spelta (L.) Thell
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/130512
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-130512
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Mycosphaerella graminicola
QTL mapping
Septoria tritici
Triticum aestivum L. subsp. spelta (L.) Thell
spellingShingle Ciencias Naturales
Mycosphaerella graminicola
QTL mapping
Septoria tritici
Triticum aestivum L. subsp. spelta (L.) Thell
Simón, María Rosa
Khlestkina, Elena K.
Castillo, Nadia
Börner, Andreas
Mapping quantitative resistance to septoria tritici blotch in spelt wheat
topic_facet Ciencias Naturales
Mycosphaerella graminicola
QTL mapping
Septoria tritici
Triticum aestivum L. subsp. spelta (L.) Thell
description The foliar wheat disease septoria tritici blotch can cause significant yield losses. A source of resistance has been mapped on chromosome 7D of spelt wheat, <i>Triticum aestivum</i> L. subsp. <i>spelta</i> (L.) Thell. The microsatellite-based genetic map was constructed from a set of 87 single-chromosome recombinant doubled-haploid lines bred from the cross between the landrace ‘Chinese Spring’ and a ‘Chinese Spring’-based line carrying chromosome 7D from spelt wheat. Two regions of the chromosome were associated with isolate-specific QTL expressed one at the seedling and another at the adult plant stage. The seedling resistance locus QStb.ipk-7D1 was found in the centromeric region of chromosome 7D, which corresponds to the location of the major resistance genes Stb4 originating from bread wheat cultivar ‘Tadinia’ and Stb5 originating from <i>Triticum tauschii</i>. The adult resistance locus QStb.ipk-7D2 was found on the short arm of chromosome 7D in a similar position to the locus Lr34/Yr18 known to be effective against multiple pathogens. Composite interval mapping confirmed QStb.ipk-7D1 and QStb.ipk-7D2 to be two distinct loci.
format Articulo
Articulo
author Simón, María Rosa
Khlestkina, Elena K.
Castillo, Nadia
Börner, Andreas
author_facet Simón, María Rosa
Khlestkina, Elena K.
Castillo, Nadia
Börner, Andreas
author_sort Simón, María Rosa
title Mapping quantitative resistance to septoria tritici blotch in spelt wheat
title_short Mapping quantitative resistance to septoria tritici blotch in spelt wheat
title_full Mapping quantitative resistance to septoria tritici blotch in spelt wheat
title_fullStr Mapping quantitative resistance to septoria tritici blotch in spelt wheat
title_full_unstemmed Mapping quantitative resistance to septoria tritici blotch in spelt wheat
title_sort mapping quantitative resistance to septoria tritici blotch in spelt wheat
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/130512
work_keys_str_mv AT simonmariarosa mappingquantitativeresistancetoseptoriatriticiblotchinspeltwheat
AT khlestkinaelenak mappingquantitativeresistancetoseptoriatriticiblotchinspeltwheat
AT castillonadia mappingquantitativeresistancetoseptoriatriticiblotchinspeltwheat
AT bornerandreas mappingquantitativeresistancetoseptoriatriticiblotchinspeltwheat
bdutipo_str Repositorios
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