{"id":53000,"date":"2006-09-06T00:00:00","date_gmt":"2006-09-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/regulacio-genica-de-protea%c2%afnes-de-reserva-en-cereals-factors-de-transcripcio-implicats\/"},"modified":"2006-09-06T00:00:00","modified_gmt":"2006-09-06T00:00:00","slug":"regulacio-genica-de-protea%c2%afnes-de-reserva-en-cereals-factors-de-transcripcio-implicats","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/barcelona\/regulacio-genica-de-protea%c2%afnes-de-reserva-en-cereals-factors-de-transcripcio-implicats\/","title":{"rendered":"Regulaci\u00f3 g\u00e9nica de prote\u00c1\u00afnes de reserva en cereals. factors de transcripci\u00f3 implicats"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Elisabet Gas Pascual <\/strong><\/h2>\n<p>En la mayor\u00eda de cereales, las prote\u00ednas de reserva mayoritarias de la semilla reciben el nombre de prolaminas y se acumulan en el endospermo. Los genes que las codifican son espec\u00edficos de tejido y presentan elevada eficiencia transcripcional, sugiriendo una estrecha regulaci\u00f3n g\u00e9nica. En ma\u00edz, nuestra especie modelo, las prolaminas se denominan ze\u00ednas y se acumulan en unas ves\u00edculas derivadas del re llamadas cuerpos proteicos, mientras que otras prote\u00ednas de reserva como globlulinas u oleosinas que acumulan en la aleurona y el embri\u00f3n. El inter\u00e9s de nuestro grupos se centra en la gamma-ze\u00edna, una prote\u00edna de reserva espec\u00edfica de endospermo, que constituye el 15% del contenido prote\u00edco del grano, a pesar de que su gen (gamma z) se encuentra presente s\u00f3lo en una o dos copias por genoma haploide.     el objetivo de este trabajo era caracterizar nuevos factores de transcripci\u00f3n implacados en la expresi\u00f3n de prote\u00ednas de reserva espec\u00edficas de semilla, ligadas al desarrollo del grano, especialmente aquellos involucrados en la expresi\u00f3n del gen gammaz. Los objetivos concretos as\u00ed como los resultados conseguidos se describen brevemente a continuaci\u00f3n:     1,- caracterizaci\u00f3n funcional de pbf como regulador positivo del gen gamma z. Pbf es un activador transcripcional, cuyo dominio activador se localiza en su regi\u00f3n c-terminal. La actividad de pbf depende de su capacidad de uni\u00f3n al dna.     2,- nuevos factores de transcripci\u00f3n involucrados en la expresi\u00f3n del gen gammaz: clonaje del gen gamyb de ma\u00edz y estudios de inmunolcoalizaci\u00f3n. Caracterizaci\u00f3n de este factor como regulador transcripcional del gen gammaz. Zmgamyb codifica para un factor de transcripci\u00f3n de tipo myb r2r3 que se une espec\u00edficamente a la caja aaca del promotor gamma z y activa la expresi\u00f3n del gen gammaz a partir de su promotor. Zmgamyb se expresa espec\u00edficamente en endospermo de ma\u00edz en desarrollo, de forma similar a como lo hacen otros reguladores del gen ga<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Regulaci\u00f3 g\u00e9nica de prote\u00c1\u00afnes de reserva en cereals. factors de transcripci\u00f3 implicats<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Regulaci\u00f3 g\u00e9nica de prote\u00c1\u00afnes de reserva en cereals. factors de transcripci\u00f3 implicats <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Elisabet Gas Pascual <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/06\/2006<\/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>Dolors Ludevid M\u00fagica<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: albert Boronat margosa <\/li>\n<li>Jaime Martinez garcia (vocal)<\/li>\n<li>Jes\u00fas Vicente carbajosa (vocal)<\/li>\n<li>victoria Lumbreras ruiz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Elisabet Gas Pascual En la mayor\u00eda de cereales, las prote\u00ednas de reserva mayoritarias de la semilla reciben [&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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