Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.)
Carrots are typically classified as annual or biennial, depending on their vernalization requirement for flowering, a trait that is genetically-conditioned. Wild carrots are predominantly annual, requiring less hours of cold temperatures for flower induction, whereas most cultivated carrots are bien...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Springer
2019
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| Online Access: | https://link.springer.com/article/10.1007/s10681-019-2360-2 http://hdl.handle.net/20.500.12123/4702 https://doi.org/10.1007/s10681-019-2360-2 |
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| author | Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Cavagnaro, Pablo Galmarini, Claudio Romulo |
| author_browse | Alessandro, Maria Soledad Cavagnaro, Pablo Galmarini, Claudio Romulo Wohlfeiler Altavilla, Josefina |
| author_facet | Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Cavagnaro, Pablo Galmarini, Claudio Romulo |
| author_sort | Wohlfeiler Altavilla, Josefina |
| collection | INTA Digital |
| description | Carrots are typically classified as annual or biennial, depending on their vernalization requirement for flowering, a trait that is genetically-conditioned. Wild carrots are predominantly annual, requiring less hours of cold temperatures for flower induction, whereas most cultivated carrots are biennial (i.e., they have higher cold temperature requirements). After vernalization, if followed by long days, floral stem elongation and flowering take place. Previous studies using F2 and BC1 families derived from crosses between an early and a late-flowering line revealed segregation ratios consistent with a monogenic trait, with annual habit being dominant over biennial. In this work, we studied inheritance and segregation of the vernalization requirement in carrot F2 populations derived from crosses involving carrots of different genetic backgrounds and geographical origins. Nine crosses between biennial and annual phenotypes were analyzed, for 2 years, by means of percentage of flowering plants (parental lines, F1 and F2 families were sown in the fall for adequate discrimination between annual and biennial plants). Based on the obtained segregation ratios, a genetic model for this trait was proposed. The results are consistent with a model of two genes (Vrn-A and Vrn-B) with three alleles controlling the vernalization requirement. Dominance of annuality was clear for both genes, with A1 allele having an epistatic effect over Vrn-B. Vrn-A and Vrn-B interact generating different vernalization requirement levels. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4702 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA47022022-04-22T13:15:29Z Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Cavagnaro, Pablo Galmarini, Claudio Romulo Zanahoria Vernalización Daucus Carota Floración Genética Carrots Vernalization Flowering Genetics Carrots are typically classified as annual or biennial, depending on their vernalization requirement for flowering, a trait that is genetically-conditioned. Wild carrots are predominantly annual, requiring less hours of cold temperatures for flower induction, whereas most cultivated carrots are biennial (i.e., they have higher cold temperature requirements). After vernalization, if followed by long days, floral stem elongation and flowering take place. Previous studies using F2 and BC1 families derived from crosses between an early and a late-flowering line revealed segregation ratios consistent with a monogenic trait, with annual habit being dominant over biennial. In this work, we studied inheritance and segregation of the vernalization requirement in carrot F2 populations derived from crosses involving carrots of different genetic backgrounds and geographical origins. Nine crosses between biennial and annual phenotypes were analyzed, for 2 years, by means of percentage of flowering plants (parental lines, F1 and F2 families were sown in the fall for adequate discrimination between annual and biennial plants). Based on the obtained segregation ratios, a genetic model for this trait was proposed. The results are consistent with a model of two genes (Vrn-A and Vrn-B) with three alleles controlling the vernalization requirement. Dominance of annuality was clear for both genes, with A1 allele having an epistatic effect over Vrn-B. Vrn-A and Vrn-B interact generating different vernalization requirement levels. EEA La Consulta Fil: Wohlfeiler, Josefina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Alessandro, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Cavagnaro, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina Fil: Galmarini, Claudio Romulo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina 2019-03-22T11:51:45Z 2019-03-22T11:51:45Z 2019-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s10681-019-2360-2 http://hdl.handle.net/20.500.12123/4702 0014-2336 1573-5060 https://doi.org/10.1007/s10681-019-2360-2 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Euphytica 215 : 37 (February 2019) |
| spellingShingle | Zanahoria Vernalización Daucus Carota Floración Genética Carrots Vernalization Flowering Genetics Wohlfeiler Altavilla, Josefina Alessandro, Maria Soledad Cavagnaro, Pablo Galmarini, Claudio Romulo Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) |
| title | Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) |
| title_full | Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) |
| title_fullStr | Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) |
| title_full_unstemmed | Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) |
| title_short | Multiallelic digenic control of vernalization requirement in carrot (Daucus carota L.) |
| title_sort | multiallelic digenic control of vernalization requirement in carrot daucus carota l |
| topic | Zanahoria Vernalización Daucus Carota Floración Genética Carrots Vernalization Flowering Genetics |
| url | https://link.springer.com/article/10.1007/s10681-019-2360-2 http://hdl.handle.net/20.500.12123/4702 https://doi.org/10.1007/s10681-019-2360-2 |
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