Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population
The constant increase in temperatures, as a consequence of climate change, affects the regions where wheat is grown and thus demands an adjustment of crop cycle to shorter periods with the purpose of decreasing the high temperature stress. Therefore, the discovery of new genetic sources of flowering...
| Main Authors: | , , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2017
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/19040 |
| _version_ | 1806647101138927616 |
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| author | Lombardo, L. A. Nisi, M. M. Ghione, C. E. Fisore, G. D. Helguera, M. |
| author_facet | Lombardo, L. A. Nisi, M. M. Ghione, C. E. Fisore, G. D. Helguera, M. |
| author_sort | Lombardo, L. A. |
| collection | Portal de Revistas |
| description | The constant increase in temperatures, as a consequence of climate change, affects the regions where wheat is grown and thus demands an adjustment of crop cycle to shorter periods with the purpose of decreasing the high temperature stress. Therefore, the discovery of new genetic sources of flowering modulation and the development of molecular tools that enable their use, take a main role in wheat breeding. In this study, the effect of Ppd-1 on flowering time was evaluated in a bread wheat biparental population, under controlled conditions. Novel molecular markers for Ppd-A1 and Ppd-B1 genes were developed. The results showed an unequal effect of Ppd-1 loci (Ppd-A1, Ppd-B1 and Ppd-D1) on photoperiod response. Ppd-D1 was the locus with the greatest effect on photoperiod response, while Ppd-B1 and Ppd-A1 presented minor and null effects, respectively. It could be concluded that long day stimulation is not essential to wheat flowering. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-19040 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2017 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-190402019-03-11T19:28:56Z Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population Evaluación fenotípica y molecular de alelos de los genes Ppd-1 en una población biparental de trigo pan Lombardo, L. A. Nisi, M. M. Ghione, C. E. Fisore, G. D. Helguera, M. trigo fotoperíodo Ppd-1 marcadores moleculares wheat photoperiod Ppd-1 molecular markers The constant increase in temperatures, as a consequence of climate change, affects the regions where wheat is grown and thus demands an adjustment of crop cycle to shorter periods with the purpose of decreasing the high temperature stress. Therefore, the discovery of new genetic sources of flowering modulation and the development of molecular tools that enable their use, take a main role in wheat breeding. In this study, the effect of Ppd-1 on flowering time was evaluated in a bread wheat biparental population, under controlled conditions. Novel molecular markers for Ppd-A1 and Ppd-B1 genes were developed. The results showed an unequal effect of Ppd-1 loci (Ppd-A1, Ppd-B1 and Ppd-D1) on photoperiod response. Ppd-D1 was the locus with the greatest effect on photoperiod response, while Ppd-B1 and Ppd-A1 presented minor and null effects, respectively. It could be concluded that long day stimulation is not essential to wheat flowering. El constante incremento de las temperaturas –como consecuencia del cambio climático– en las regiones donde se cultiva trigo, exige ajustar el ciclo del cultivo a períodos más cortos para evitar o disminuir los estreses causados por las altas temperaturas. En este sentido, el descubrimiento de fuentes genéticas innovadoras de modulación de la espigazón, así como también el desarrollo de herramientas moleculares que permitan capitalizarlas, tienen un rol central en el mejoramiento de este cultivo. En el presente estudio se evalúa, bajo condiciones controladas, el efecto de los genes Ppd-1 sobre la espigazón en una población biparental de trigo pan. Para tal fin, se desarrollaron marcadores moleculares inéditos para los genes Ppd-A1 y Ppd-B1. Los resultados obtenidos muestran un efecto desigual de los loci Ppd-1 (Ppd-A1, Ppd-B1 y Ppd-D1) sobre la respuesta al fotoperíodo. Ppd-D1 fue el locus con mayor efecto sobre la respuesta al fotoperíodo, mientras que Ppd-B1 y Ppd-A1 presentaron un efecto menor y nulo, respectivamente. Se concluye de este estudio, que la estimulación en condiciones de días largos no es un proceso esencial para que se produzca la espigazón en el trigo. Facultad de Ciencias Agropecuarias 2017-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/19040 AgriScientia; Vol. 34 No. 2 (2017); 45-57 AgriScientia; Vol. 34 Núm. 2 (2017); 45-57 1668-298X 10.31047/1668.298x.v34.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/19040/18955 |
| spellingShingle | trigo fotoperíodo Ppd-1 marcadores moleculares wheat photoperiod Ppd-1 molecular markers Lombardo, L. A. Nisi, M. M. Ghione, C. E. Fisore, G. D. Helguera, M. Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population |
| title | Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population |
| title_alt | Evaluación fenotípica y molecular de alelos de los genes Ppd-1 en una población biparental de trigo pan |
| title_full | Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population |
| title_fullStr | Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population |
| title_full_unstemmed | Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population |
| title_short | Phenotypic and molecular evaluation of Ppd-1 alleles in a bread wheat biparental population |
| title_sort | phenotypic and molecular evaluation of ppd 1 alleles in a bread wheat biparental population |
| topic | trigo fotoperíodo Ppd-1 marcadores moleculares wheat photoperiod Ppd-1 molecular markers |
| topic_facet | trigo fotoperíodo Ppd-1 marcadores moleculares wheat photoperiod Ppd-1 molecular markers |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/19040 |
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