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Abstract
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. [ver mas...]
dc.contributor.authorWohlfeiler, Josefina
dc.contributor.authorAlessandro, Maria Soledad
dc.contributor.authorCavagnaro, Pablo
dc.contributor.authorGalmarini, Claudio Romulo
dc.date.accessioned2019-03-22T11:51:45Z
dc.date.available2019-03-22T11:51:45Z
dc.date.issued2019-02
dc.identifier.issn0014-2336
dc.identifier.issn1573-5060
dc.identifier.otherhttps://doi.org/10.1007/s10681-019-2360-2
dc.identifier.urihttps://link.springer.com/article/10.1007/s10681-019-2360-2
dc.identifier.urihttp://hdl.handle.net/20.500.12123/4702
dc.description.abstractCarrots 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.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceEuphytica 215 : 37 (February 2019)es_AR
dc.subjectZanahoriaes_AR
dc.subjectCarrotseng
dc.subjectVernalizaciónes_AR
dc.subjectVernalizationeng
dc.subjectDaucus Carotaes_AR
dc.subjectFloraciónes_AR
dc.subjectFloweringeng
dc.subjectGenéticaes_AR
dc.subjectGeneticseng
dc.titleMultiallelic digenic control of vernalization requirement in carrot (Daucus carota L.)es_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA La Consultaes_AR
dc.description.filFil: Wohlfeiler, Josefina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentinaes_AR
dc.description.filFil: Alessandro, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentinaes_AR
dc.description.filFil: 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; Argentinaes_AR
dc.description.filFil: 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; Argentinaes_AR
dc.subtypecientifico


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