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dc.contributor.author
Neiff, Nicolás
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dc.contributor.author
González Pérez, Lorena
dc.contributor.author
Mendoza Lugo, Jose Alberto
dc.contributor.author
Martínez, Carlos
dc.contributor.author
Kettler, Belén Araceli
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dc.contributor.author
Dhliwayo, Thanda
dc.contributor.author
Babu, Raman
dc.contributor.author
Trachsel, Samuel
dc.date.available
2023-09-26T13:08:19Z
dc.date.issued
2022-11
dc.identifier.citation
Neiff, Nicolás; González Pérez, Lorena; Mendoza Lugo, Jose Alberto; Martínez, Carlos; Kettler, Belén Araceli; et al.; QTL and genomic prediction accuracy for grain yield and secondary traits in a maize population under heat and heat-drought stresses; Taylor & Francis Ltd; Journal of Crop Improvement; 37; 5; 11-2022; 709-734
dc.identifier.issn
1542-7528
dc.identifier.uri
http://hdl.handle.net/11336/213045
dc.description.abstract
Heat and drought stresses negatively affect maize (Zea mays L.) productivity. We aimed to identify the genetic basis of tolerance to heat stress (HS) and combined heat and drought stress (HS+DS) and compare how QTL and whole genome selection (GS) could be leveraged to improve tolerance to both stresses. A set of 97 testcross hybrids derived from a maize bi-parental doubled-haploid population was evaluated during the summer seasons of 2014, 2015, and 2016 in Ciudad Obregon, Sonora, Mexico, under HS and HS+DS. Grain yield (GY) reached 5.7 t ha−1 under HS and 3.0 t ha−1 under HS+DS. Twenty-six QTL were detected across six environments, with LOD scores ranging from 2.03 to 3.86; the QTL explained 8.6% to 18.6% of the observed phenotypic variation. Hyperspectral biomass and structural index (HBSI) had higher genetic correlation with GY for HS (r = 0.97) and HS+DS (r = 0.74), relative to the correlation with crop water mass or greenness indices. Genetic correlations between GY and canopy temperature for HS (r = −0.89) and HS+DS (r = −0.75) or vegetation indices, along with clusters of QTL in bins 1.02, 1.05, and 2.05, underline the importance of these genomic areas for secondary traits associated with general vigor and greenness. Prediction accuracy of the model used for GS had values below those found in previous studies. We found a high-yielding hybrid that was tolerant to HS and HS+DS.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CANOPY TEMPERATURE
dc.subject
CLIMATE CHANGE
dc.subject
DOUBLED HAPLOID
dc.subject
PLANT BREEDING
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
QTL and genomic prediction accuracy for grain yield and secondary traits in a maize population under heat and heat-drought stresses
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-05T15:06:53Z
dc.identifier.eissn
1542-7536
dc.journal.volume
37
dc.journal.number
5
dc.journal.pagination
709-734
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Centro de Ecofisiología Vegetal; Argentina
dc.description.fil
Fil: González Pérez, Lorena. Centro Internacional de Mejoramiento de Maiz y Trigo; México
dc.description.fil
Fil: Mendoza Lugo, Jose Alberto. Centro Internacional de Mejoramiento de Maiz y Trigo; México
dc.description.fil
Fil: Martínez, Carlos. Centro Internacional de Mejoramiento de Maiz y Trigo; México
dc.description.fil
Fil: Kettler, Belén Araceli. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
dc.description.fil
Fil: Dhliwayo, Thanda. Centro Internacional de Mejoramiento de Maiz y Trigo; México
dc.description.fil
Fil: Babu, Raman. Centro Internacional de Mejoramiento de Maiz y Trigo; México
dc.description.fil
Fil: Trachsel, Samuel. Centro Internacional de Mejoramiento de Maiz y Trigo; México
dc.journal.title
Journal of Crop Improvement
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/15427528.2022.2145591
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/15427528.2022.2145591
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