Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm
Fusarium verticillioides and F. graminearum cause ear rots in maize (Zea mays L.) that reduce yield and contaminate the grain with mycotoxins produced by the fungi. To map QTLs for resistance to these ear rots, a F5 mapping population, consisting of 298 recombinant inbreds obtained by randomly selfi...
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| Format: | Artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/924 https://link.springer.com/article/10.1007%2Fs10681-016-1725-z https://doi.org/10.1007/s10681-016-1725-z |
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| author | Giomi, Gerardo Mario Iglesias, Juliana Kreff, Enrique D. Fauguel, Carolina Maria Fernández, Mariana Oviedo, María Silvina Presello, Daniel Alberto |
| author_browse | Fauguel, Carolina Maria Fernández, Mariana Giomi, Gerardo Mario Iglesias, Juliana Kreff, Enrique D. Oviedo, María Silvina Presello, Daniel Alberto |
| author_facet | Giomi, Gerardo Mario Iglesias, Juliana Kreff, Enrique D. Fauguel, Carolina Maria Fernández, Mariana Oviedo, María Silvina Presello, Daniel Alberto |
| author_sort | Giomi, Gerardo Mario |
| collection | INTA Digital |
| description | Fusarium verticillioides and F. graminearum cause ear rots in maize (Zea mays L.) that reduce yield and contaminate the grain with mycotoxins produced by the fungi. To map QTLs for resistance to these ear rots, a F5 mapping population, consisting of 298 recombinant inbreds obtained by randomly selfing of the cross between LP4637 (moderately resistant) and L4674 (susceptible), was genotyped with 250 single nucleotide polymorphism markers and phenotyped 2 years for disease severity after silk inoculation with conidial suspensions of F. verticillioides and F. graminearum. Four QTLs were mapped in chromosomes 2, 3 and 5, bins 2.03, 3.05, 3.07 and 5.07, explaining ranges of 11.2–11.8, 3.4–5.1, 6.2–7.6 and 3.8–5.0 of phenotypic variances (%), respectively, depending on year and fungus. Additive effects of each QTL ranged from 5.0 to 11.9 % of ear area covered by mold and no epistatic interactions were observed. The four QTLs were effective for both Fusarium species and environments indicating that LP4637 is a source of broad resistance to Fusarium stable across environments. These results are consistent with previous research reporting QTLs for ear rot resistance in the same chromosome regions from sources of resistance growing in North America, Africa, Europe and China. |
| format | Artículo |
| id | INTA924 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA9242018-02-23T13:44:59Z Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm Giomi, Gerardo Mario Iglesias, Juliana Kreff, Enrique D. Fauguel, Carolina Maria Fernández, Mariana Oviedo, María Silvina Presello, Daniel Alberto Maíz Germoplasma Loci de Rasgos Cuantitativos Fusarium Gibberella Maize Germoplasm Quantitative Trait Loci Fusarium verticillioides and F. graminearum cause ear rots in maize (Zea mays L.) that reduce yield and contaminate the grain with mycotoxins produced by the fungi. To map QTLs for resistance to these ear rots, a F5 mapping population, consisting of 298 recombinant inbreds obtained by randomly selfing of the cross between LP4637 (moderately resistant) and L4674 (susceptible), was genotyped with 250 single nucleotide polymorphism markers and phenotyped 2 years for disease severity after silk inoculation with conidial suspensions of F. verticillioides and F. graminearum. Four QTLs were mapped in chromosomes 2, 3 and 5, bins 2.03, 3.05, 3.07 and 5.07, explaining ranges of 11.2–11.8, 3.4–5.1, 6.2–7.6 and 3.8–5.0 of phenotypic variances (%), respectively, depending on year and fungus. Additive effects of each QTL ranged from 5.0 to 11.9 % of ear area covered by mold and no epistatic interactions were observed. The four QTLs were effective for both Fusarium species and environments indicating that LP4637 is a source of broad resistance to Fusarium stable across environments. These results are consistent with previous research reporting QTLs for ear rot resistance in the same chromosome regions from sources of resistance growing in North America, Africa, Europe and China. EEA Pergamino Fil: Giomi, Gerardo Mario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Iglesias, Juliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina. Fil: Kreff, Enrique D. Pioneer Argentina; Argentina Fil: Fauguel, Carolina Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina Fil: Fernández, Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina. Fil: Oviedo, María Silvina. Instituto Nacional de Tecnología Industrial. Centro Villa Regina; Argentina Fil: Presello, Daniel Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina 2017-08-08T14:27:46Z 2017-08-08T14:27:46Z 2016 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/924 https://link.springer.com/article/10.1007%2Fs10681-016-1725-z 0014-2336 (Print) 1573-5060 (Online) https://doi.org/10.1007/s10681-016-1725-z eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Argentina (nation) Euphytica 211 (3) : 287–294 |
| spellingShingle | Maíz Germoplasma Loci de Rasgos Cuantitativos Fusarium Gibberella Maize Germoplasm Quantitative Trait Loci Giomi, Gerardo Mario Iglesias, Juliana Kreff, Enrique D. Fauguel, Carolina Maria Fernández, Mariana Oviedo, María Silvina Presello, Daniel Alberto Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm |
| title | Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm |
| title_full | Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm |
| title_fullStr | Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm |
| title_full_unstemmed | Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm |
| title_short | Quantitative trait loci for Fusarium and Gibberella ear rot resistance in Argentinian maize germplasm |
| title_sort | quantitative trait loci for fusarium and gibberella ear rot resistance in argentinian maize germplasm |
| topic | Maíz Germoplasma Loci de Rasgos Cuantitativos Fusarium Gibberella Maize Germoplasm Quantitative Trait Loci |
| url | http://hdl.handle.net/20.500.12123/924 https://link.springer.com/article/10.1007%2Fs10681-016-1725-z https://doi.org/10.1007/s10681-016-1725-z |
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