Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars
Predicting phenology, in particular heading time, is crucial to avoid and/or minimize risk of damage of frost, drought and high temperatures during grain filling. Although some of the major genes controlling development, associated with photoperiod and vernalization responses, were identified, the a...
| Main Authors: | , , , , , |
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1736 https://www.sciencedirect.com/science/article/pii/S0378429013004371 https://doi.org/10.1016/j.fcr.2013.12.023 |
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| author | Gomez, Dionisio Tomas Vanzetti, Leonardo Sebastian Helguera, Marcelo Lombardo, Lucio Fraschina, Jorge Alberto Miralles, D.J. |
| author_browse | Fraschina, Jorge Alberto Gomez, Dionisio Tomas Helguera, Marcelo Lombardo, Lucio Miralles, D.J. Vanzetti, Leonardo Sebastian |
| author_facet | Gomez, Dionisio Tomas Vanzetti, Leonardo Sebastian Helguera, Marcelo Lombardo, Lucio Fraschina, Jorge Alberto Miralles, D.J. |
| author_sort | Gomez, Dionisio Tomas |
| collection | INTA Digital |
| description | Predicting phenology, in particular heading time, is crucial to avoid and/or minimize risk of damage of frost, drought and high temperatures during grain filling. Although some of the major genes controlling development, associated with photoperiod and vernalization responses, were identified, the association between the molecular characterization of those genes and photoperiod sensitivity, vernalization responses and earliness per se has been poorly studied. The present study was conducted to determine the effects of photoperiod and vernalization genes (and their allelic combination characterized by molecular approach) on heading time and its correlation with the phenological parameters determined by field experiments in a wide range of Argentine bread wheat commercial cultivars. Additionally, the association between photoperiod and vernalization responses with earliness per se was analyzed. Molecular characterization showed that most of the commercial Argentine wheat cultivars available in the market correspond to spring growth habit with dominant insensitive photoperiod alleles (SI) followed by spring habit sensitive to photoperiod (SS), while winter insensitive (WI) habit represented a minority group. All genotypes included in the present study (even those classified as SI and WI) were photoperiod sensitive when that trait was quantified from a physiological analysis as the slope of the relationship between duration of a particular phase and mean photoperiod sensed during the period between emergence and heading. SI showed lower photoperiod sensitivity than SS and WI, without clear differences between both later groups. In all cases, photoperiod sensitivity was the main attribute that determined the differences in time to heading even when vernalization requirements were not completely fulfilled in the WI. The genotypes with different photoperiod and vernalization allele combinations showed a wide range of duration of earliness per se. However, differences in earliness per se did not show any particular association with the groups classified by molecular markers for photoperiod and vernalization. The information included in the present study can be used to build a gene-based model for predicting phenology. However, the variations in photoperiod and/or vernalization sensitivity within the same allelic combination could still determine mismatching in the prediction of the models based on Ppd-1 and Vrn-1 genes |
| format | info:ar-repo/semantics/artículo |
| id | INTA1736 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA17362017-12-15T12:43:53Z Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars Gomez, Dionisio Tomas Vanzetti, Leonardo Sebastian Helguera, Marcelo Lombardo, Lucio Fraschina, Jorge Alberto Miralles, D.J. Genes Genética Trigo Harinero Variedades Genetics Soft Wheat Varieties Heading Espigueo Trigo Pan Argentina Predicting phenology, in particular heading time, is crucial to avoid and/or minimize risk of damage of frost, drought and high temperatures during grain filling. Although some of the major genes controlling development, associated with photoperiod and vernalization responses, were identified, the association between the molecular characterization of those genes and photoperiod sensitivity, vernalization responses and earliness per se has been poorly studied. The present study was conducted to determine the effects of photoperiod and vernalization genes (and their allelic combination characterized by molecular approach) on heading time and its correlation with the phenological parameters determined by field experiments in a wide range of Argentine bread wheat commercial cultivars. Additionally, the association between photoperiod and vernalization responses with earliness per se was analyzed. Molecular characterization showed that most of the commercial Argentine wheat cultivars available in the market correspond to spring growth habit with dominant insensitive photoperiod alleles (SI) followed by spring habit sensitive to photoperiod (SS), while winter insensitive (WI) habit represented a minority group. All genotypes included in the present study (even those classified as SI and WI) were photoperiod sensitive when that trait was quantified from a physiological analysis as the slope of the relationship between duration of a particular phase and mean photoperiod sensed during the period between emergence and heading. SI showed lower photoperiod sensitivity than SS and WI, without clear differences between both later groups. In all cases, photoperiod sensitivity was the main attribute that determined the differences in time to heading even when vernalization requirements were not completely fulfilled in the WI. The genotypes with different photoperiod and vernalization allele combinations showed a wide range of duration of earliness per se. However, differences in earliness per se did not show any particular association with the groups classified by molecular markers for photoperiod and vernalization. The information included in the present study can be used to build a gene-based model for predicting phenology. However, the variations in photoperiod and/or vernalization sensitivity within the same allelic combination could still determine mismatching in the prediction of the models based on Ppd-1 and Vrn-1 genes Fil: Gomez, Dionisio Tomas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; Argentina Fil: Vanzetti, Leonardo Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez. Grupo Biotecnología y Recursos Genéticos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Helguera, Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez. Grupo Biotecnología y Recursos Genéticos; Argentina Fil: Lombardo, Lucio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez. Grupo Biotecnología y Recursos Genéticos; Argentina Fil: Fraschina, Jorge Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; Argentina Fil: Miralles, D.J. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. UBA. Facultad de Agronomía. Cátedra de Cerealicultura; Argentina. UBA. IFEVA; Argentina 2017-11-09T14:54:23Z 2017-11-09T14:54:23Z 2014-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/20.500.12123/1736 https://www.sciencedirect.com/science/article/pii/S0378429013004371 0378-4290 (Print) 1872-6852 (Online) https://doi.org/10.1016/j.fcr.2013.12.023 eng info:eu-repo/semantics/restrictedAccess application/pdf Field Crops Research 158 : 73-81 (March 2014) |
| spellingShingle | Genes Genética Trigo Harinero Variedades Genetics Soft Wheat Varieties Heading Espigueo Trigo Pan Argentina Gomez, Dionisio Tomas Vanzetti, Leonardo Sebastian Helguera, Marcelo Lombardo, Lucio Fraschina, Jorge Alberto Miralles, D.J. Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars |
| title | Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars |
| title_full | Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars |
| title_fullStr | Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars |
| title_full_unstemmed | Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars |
| title_short | Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars |
| title_sort | effect of vrn 1 ppd 1 genes and earliness per se on heading time in argentinean bread wheat cultivars |
| topic | Genes Genética Trigo Harinero Variedades Genetics Soft Wheat Varieties Heading Espigueo Trigo Pan Argentina |
| url | http://hdl.handle.net/20.500.12123/1736 https://www.sciencedirect.com/science/article/pii/S0378429013004371 https://doi.org/10.1016/j.fcr.2013.12.023 |
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