{"id":62546,"date":"2018-03-09T22:50:28","date_gmt":"2018-03-09T22:50:28","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-genetico-del-desarrollo-de-los-meristemos-axilares\/"},"modified":"2018-03-09T22:50:28","modified_gmt":"2018-03-09T22:50:28","slug":"analisis-genetico-del-desarrollo-de-los-meristemos-axilares","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/genetica\/analisis-genetico-del-desarrollo-de-los-meristemos-axilares\/","title":{"rendered":"An\u00e1lisis gen\u00e9tico del desarrollo de los meristemos axilares"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Antonio Aguilar Martinez <\/strong><\/h2>\n<p>Los patrones de ramificaci\u00f3n de las plantas dependen principalmente del control del desarrollo de los meristemos axilares. Los meristemos axilares se forman en la base de las hojas y forman yemas axilares que pueden crecer para generar nuevas ramas o permanecer inhibidas durante largos per\u00edodos de tiempo. Esta decisi\u00f3n depende de factores end\u00f3genos y ambientales mediados por se\u00f1ales hormonales. Han sido identificados varios genes implicados en la se\u00f1alizaci\u00f3n a larga distancia en este proceso, pero no se hab\u00edan identificado en la especie modelo arabidopsis thaliana genes que act\u00faen dentro de las yemas reprimiendo su desarrollo.  hemos estudiado el papel en arabidopsis de dos genes que codifican para factores de transcripci\u00f3n tcp, branched1 (brc1) y branched2 (brc2), relacionados con teosinte branched1 (tb1), un gen que controla el desarrollo de las yemas axilares en ma\u00edz (zea mays). Brc1 y brc2 muestran un patr\u00f3n de expresi\u00f3n din\u00e1mico en yemas en desarrollo. Mostramos mediante an\u00e1lisis de mutantes que brc1 tiene un papel predominante en el control del desarrollo de las yemas axilares mientras que brc2 tiene un papel menor en este proceso. Hemos realizado un an\u00e1lisis de dobles mutantes y de expresi\u00f3n g\u00e9nica para estudiar las relaciones entre brc1 y otros genes que intervienen en el control del patr\u00f3n de ramificaci\u00f3n y hemos detreminado que brc1 act\u00faa por deabjo de la ruta de los genes more axillary growth (max). Tambi\u00e9n hemos encontrado que esta ruta parece controlar la acci\u00f3n de brc1 de forma postranscripcional. Hemos mostrado que la transcripci\u00f3n de brc1 est\u00e1 afectado por se\u00f1ales end\u00f3genas y externas, principalmente auxinas y condiciones de iluminaci\u00f3n. Deducimos as\u00ed que brc1 reprime la proliferaci\u00f3n celular dentro de las yemas y act\u00faa como un integrador de las se\u00f1ales que controlan el desarrollo de las mismas. Las respuestas a estas se\u00f1ales pensamos que est\u00e1n localizadas en regiones reguladoras dentro del promotor de brc1 y por e<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis gen\u00e9tico del desarrollo de los meristemos axilares<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis gen\u00e9tico del desarrollo de los meristemos axilares <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Antonio Aguilar Martinez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/01\/2008<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Pilar Cubas Dominguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Fernandez del campo gonzalez francisca <\/li>\n<li>Manuel Pi\u00f1eiro galv\u00ed (vocal)<\/li>\n<li>Francisco Madue\u00f1o alb\u00ed (vocal)<\/li>\n<li>carolina Escobar lucas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Antonio Aguilar Martinez Los patrones de ramificaci\u00f3n de las plantas dependen principalmente del control del desarrollo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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