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dc.contributor.authorFourquin, Chloe-
dc.contributor.authorFerrándiz, Cristina-
dc.identifier.citationPlant Journal 71(6): 990-1001 (2012)es_ES
dc.description.abstractThe C-function, according to the ABC model of floral organ identity, is required for stamen and carpel development and to provide floral meristem determinacy. Members of the AG lineage of the large MADS box gene family specify the C-function in a broadly conserved manner in angiosperms. In core eudicots, two sub-lineages co-exist, euAG and PLE, which have been extensively characterized in Antirrhinum majus and Arabidopsis thaliana, where strong sub-functionalization has led to highly divergent contributions of the respective paralogs to the C-function. Various scenarios have been proposed to reconstruct the evolutionary history of the euAG and PLE lineages in eudicots, but detailed functional analyses of the roles of these genes in additional representative species to validate evolutionary hypotheses are scarce. Here, we report functional characterization of euAG- and PLE-like genes in Nicotiana benthamiana through expression analyses and phenotypic characterization of the defects caused by their specific down-regulation. We show that both paralogs redundantly contribute to the C-function in this species, providing insights on the likely evolution of these gene lineages following divergence of the major groups within the eudicots (rosids and asterids). Moreover, we have demonstrated a conserved role for the PLE-like genes in controlling fruit dehiscence, which strongly supports the ancestral role of PLE-like genes in late fruit development and suggests a common evolutionary origin of late developmental processes in dry (dehiscent) and fleshy (ripening) fruits.es_ES
dc.description.sponsorshipThe work was funded by grant BIO2009-09920 from the Spanish Ministerio de Ciencia e Innovación to C.F.es_ES
dc.subjectFloral homeotic genees_ES
dc.subjectMads-box geneses_ES
dc.subjectControlling flower developmentes_ES
dc.subjectOrgan identityes_ES
dc.subjectRegulatory interactionses_ES
dc.subjectShatterproof geneses_ES
dc.subjectEctopic expressiones_ES
dc.titleFunctional analyses of AGAMOUS family members in Nicotiana benthamiana clarify the evolution of early and late roles of C-function genes in eudicotses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
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