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Título: | Gene structure and spatiotemporal expression profile of tomato genes encoding YUCCA-like flavin monooxygenases: The ToFZY gene family |
Autor: | Expósito-Rodríguez, Marino; Borges, Andrés A. CSIC ORCID ; Borges-Pérez, Andrés CSIC; Pérez, José A. | Palabras clave: | Auxin Flavin monooxygenase FZ YIndole-3-acetic acid IAA ToFZY Triptamine YUCCA-like FMO |
Fecha de publicación: | jul-2011 | Editor: | Elsevier | Citación: | Plant Physiology and Biochemistry 49(7): 782-791 (2011) | Resumen: | The flavin monooxygenases (FMO) encoded by plant YUCCA genes are thought to catalyze a rate-limiting step in the tryptamine pathway for indole-3-acetic acid biosynthesis. Recent experiments with different plant models have indicate that YUCCA genes play essential roles in growth and development through their contribution to the local pool of free auxin. In this study we have characterized five new genes that encode YUCCA-like FMOs in the tomato genome (ToFZY2 to ToFZY6), including gene structure, conserved motifs and phylogenetic analyses. As a first step towards clarifying the individual functions of ToFZY genes, we have used quantitative real-time RT-PCR to conduct a systematic comparison of the steady-state mRNA levels of 6 ToFZY genes, in 33 samples representing major organs and the entire tomato life cycle. We followed an absolute quantification strategy which allowed us to cross-compare transcript levels among different ToFZY genes in a given spatiotemporal coordinate. Our results indicate that expression of ToFZY genes is temporally and spatially regulated, and that the distinctive expression pattern of each ToFZY gene partially overlaps with other members of the multigenic family. We compare our data with previous results in other plant species and make some predictions about the role of tryptamine pathway in tomato growth and development. | Versión del editor: | https://doi.org/10.1016/j.plaphy.2011.02.022 | URI: | http://hdl.handle.net/10261/199767 | DOI: | 10.1016/j.plaphy.2011.02.022 | Identificadores: | doi: 10.1016/j.plaphy.2011.02.022 issn: 0981-9428 e-issn: 1873-2690 |
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