Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects

A restricted range in height and phenology of the elite Seri/Babax recombinant inbred line (RIL) population makes it ideal for physiological and genetic studies. Previous research has shown differential expression for yield under water deficit associated with canopy temperature (CT). In the current...

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Autores: Pinto, R.S., Reynolds, M.P., Mathews, K.L., McIntyre, C.L., Olivares-Villegas, J.J., Chapman, S.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
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:10883/2812
Acceso en línea:http://hdl.handle.net/10883/2812
Access Level:acceso abierto
Palabra clave:AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
INBRED LINES
DROUGHT STRESS
FIELD EXPERIMENTATION
QUANTITATIVE TRAIT LOCI
YIELD FACTORS
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spelling Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effectsPinto, R.S.Reynolds, M.P.Mathews, K.L.McIntyre, C.L.Olivares-Villegas, J.J.Chapman, S.AGRICULTURAL SCIENCES AND BIOTECHNOLOGYINBRED LINESDROUGHT STRESSFIELD EXPERIMENTATIONQUANTITATIVE TRAIT LOCIYIELD FACTORSA restricted range in height and phenology of the elite Seri/Babax recombinant inbred line (RIL) population makes it ideal for physiological and genetic studies. Previous research has shown differential expression for yield under water deficit associated with canopy temperature (CT). In the current study, 167 RILs plus parents were phenotyped under drought (DRT), hot irrigated (HOT), and temperate irrigated (IRR) environments to identify the genomic regions associated with stress-adaptive traits. In total, 104 QTL were identified across a combination of 115 traits × 3 environments × 2 years, of which 14, 16, and 10 QTL were associated exclusively with DRT, HOT, and IRR, respectively. Six genomic regions were related to a large number of traits, namely 1B-a, 2B-a, 3B-b, 4A-a, 4A-b, and 5A-a. A yield QTL located on 4A-a explained 27 and 17% of variation under drought and heat stress, respectively. At the same location, a QTL explained 28% of the variation in CT under heat, while 14% of CT variation under drought was explained by a QTL on 3B-b. The T1BL.1RS (rye) translocation donated by the Seri parent was associated with decreased yield in this population. There was no co-location of consistent yield and phenology or height-related QTL, highlighting the utility of using a population with a restricted range in anthesis to facilitate QTL studies. Common QTL for drought and heat stress traits were identified on 1B-a, 2B-a, 3B-b, 4A-a, 4B-b, and 7A-a confirming their generic value across stresses. Yield QTL were shown to be associated with components of other traits, supporting the prospects for dissecting crop performance into its physiological and genetic components in order to facilitate a more strategic approach to breeding.1001-1021Springer2013-06-07T21:12:40Z2013-06-07T21:12:40Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePDFapplication/pdf0040-5752http://hdl.handle.net/10883/281210.1007/s00122-010-1351-46121Theoretical and Applied Geneticsreponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYTinstname:Centro Internacional de Mejoramiento de Maíz y Trigoinstacron:CIMMYTEnglishCIMMYT 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:10883/28122024-10-11T19:55:22Z
dc.title.none.fl_str_mv Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
title Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
spellingShingle Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
Pinto, R.S.
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
INBRED LINES
DROUGHT STRESS
FIELD EXPERIMENTATION
QUANTITATIVE TRAIT LOCI
YIELD FACTORS
title_short Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
title_full Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
title_fullStr Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
title_full_unstemmed Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
title_sort Heat and drought adaptive QTL in a wheat population designed to minimize confounding agronomic effects
dc.creator.none.fl_str_mv Pinto, R.S.
Reynolds, M.P.
Mathews, K.L.
McIntyre, C.L.
Olivares-Villegas, J.J.
Chapman, S.
author Pinto, R.S.
author_facet Pinto, R.S.
Reynolds, M.P.
Mathews, K.L.
McIntyre, C.L.
Olivares-Villegas, J.J.
Chapman, S.
author_role author
author2 Reynolds, M.P.
Mathews, K.L.
McIntyre, C.L.
Olivares-Villegas, J.J.
Chapman, S.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
INBRED LINES
DROUGHT STRESS
FIELD EXPERIMENTATION
QUANTITATIVE TRAIT LOCI
YIELD FACTORS
topic AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
INBRED LINES
DROUGHT STRESS
FIELD EXPERIMENTATION
QUANTITATIVE TRAIT LOCI
YIELD FACTORS
description A restricted range in height and phenology of the elite Seri/Babax recombinant inbred line (RIL) population makes it ideal for physiological and genetic studies. Previous research has shown differential expression for yield under water deficit associated with canopy temperature (CT). In the current study, 167 RILs plus parents were phenotyped under drought (DRT), hot irrigated (HOT), and temperate irrigated (IRR) environments to identify the genomic regions associated with stress-adaptive traits. In total, 104 QTL were identified across a combination of 115 traits × 3 environments × 2 years, of which 14, 16, and 10 QTL were associated exclusively with DRT, HOT, and IRR, respectively. Six genomic regions were related to a large number of traits, namely 1B-a, 2B-a, 3B-b, 4A-a, 4A-b, and 5A-a. A yield QTL located on 4A-a explained 27 and 17% of variation under drought and heat stress, respectively. At the same location, a QTL explained 28% of the variation in CT under heat, while 14% of CT variation under drought was explained by a QTL on 3B-b. The T1BL.1RS (rye) translocation donated by the Seri parent was associated with decreased yield in this population. There was no co-location of consistent yield and phenology or height-related QTL, highlighting the utility of using a population with a restricted range in anthesis to facilitate QTL studies. Common QTL for drought and heat stress traits were identified on 1B-a, 2B-a, 3B-b, 4A-a, 4B-b, and 7A-a confirming their generic value across stresses. Yield QTL were shown to be associated with components of other traits, supporting the prospects for dissecting crop performance into its physiological and genetic components in order to facilitate a more strategic approach to breeding.
publishDate 2010
dc.date.none.fl_str_mv 2010
2013-06-07T21:12:40Z
2013-06-07T21:12:40Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0040-5752
http://hdl.handle.net/10883/2812
10.1007/s00122-010-1351-4
identifier_str_mv 0040-5752
10.1007/s00122-010-1351-4
url http://hdl.handle.net/10883/2812
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 PDF
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv 6
121
Theoretical and Applied Genetics
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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