Genetic variation for cold tolerance in two nested association mapping populations

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dc.contributor.authorRevilla, Pedro
dc.contributor.authorButrón, Ana
dc.contributor.authorRodriguez, Víctor Manuel
dc.contributor.authorRincent, Renaud
dc.contributor.authorCharcosset, Alain
dc.contributor.authorGiauffret, Catherine
dc.contributor.authorMelchinger, Albrecht E.
dc.contributor.authorSchön, Chris-Carolin
dc.contributor.authorBauer, Eva
dc.contributor.authorAltmann, Thomas
dc.contributor.authorBrunel, Dominique
dc.contributor.authorMoreno-González, Jesús
dc.contributor.authorCampo, Laura
dc.contributor.authorOuzunova, Milena
dc.contributor.authorÁlvarez, Ángel
dc.contributor.authorRuíz de Galarreta, José Ignacio
dc.contributor.authorLaborde, Jacques
dc.contributor.authorMalvar, Rosa Ana
dc.date.accessioned2024-09-03T13:38:05Z
dc.date.available2024-09-03T13:38:05Z
dc.date.issued2023de
dc.description.abstractCold reduces maize (Zea mays L.) production and delays sowings. Cold tolerance in maize is very limited, and breeding maize for cold tolerance is still a major challenge. Our objective was to detect QTL for cold tolerance at germination and seedling stages. We evaluated, under cold and control conditions, 919 Dent and 1009 Flint inbred lines from two nested association mapping designs consisting in 24 double-haploid populations, genotyped with 56,110 SNPs. We found a large diversity of maize cold tolerance within these NAM populations. We detected one QTL for plant weight and four for fluorescence under cold conditions, as well as one for plant weight and two for chlorophyll content under control conditions in the Dent-NAM. There were fewer significant QTL under control conditions than under cold conditions, and half of the QTL were for quantum efficiency of photosystem II. Our results supported the large genetic discrepancy between optimal and low temperatures, as the quantity and the position of the QTL were very variable between control and cold conditions. Furthermore, as we have not found alleles with significant effects on these NAM designs, further studies are needed with other experimental designs to find favorable alleles with important effects for improving cold tolerance in maize.en
dc.identifier.urihttps://hohpublica.uni-hohenheim.de/handle/123456789/16510
dc.identifier.urihttps://doi.org/10.3390/agronomy13010195
dc.language.isoengde
dc.rights.licensecc_byde
dc.source2073-4395de
dc.sourceAgronomy; Vol. 13, No. 1 (2023) 195de
dc.subjectCold tolerance
dc.subjectMaize
dc.subjectQTL
dc.subjectNAM
dc.subjectRIL
dc.subject.ddc630
dc.titleGenetic variation for cold tolerance in two nested association mapping populationsen
dc.type.diniArticle
dcterms.bibliographicCitationAgronomy, 13 (2023), 1, 195. https://doi.org/10.3390/agronomy13010195. ISSN: 2073-4395
dcterms.bibliographicCitation.issn2073-4395
dcterms.bibliographicCitation.issue1
dcterms.bibliographicCitation.journaltitleAgronomy
dcterms.bibliographicCitation.volume13
local.export.bibtex@article{Revilla2023, url = {https://hohpublica.uni-hohenheim.de/handle/123456789/16510}, doi = {10.3390/agronomy13010195}, author = {Revilla, Pedro and Butrón, Ana and Rodriguez, Víctor Manuel et al.}, title = {Genetic Variation for Cold Tolerance in Two Nested Association Mapping Populations}, journal = {2073-4395}, year = {2023}, volume = {13}, number = {1}, }
local.export.bibtexAuthorRevilla, Pedro and Butrón, Ana and Rodriguez, Víctor Manuel et al.
local.export.bibtexKeyRevilla2023
local.export.bibtexType@article

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