{"id":52906,"date":"2006-02-06T00:00:00","date_gmt":"2006-02-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/la-coleccion-nuclear-de-cebadas-espanolas-diversidad-genetica-y-potencial-agronomico\/"},"modified":"2006-02-06T00:00:00","modified_gmt":"2006-02-06T00:00:00","slug":"la-coleccion-nuclear-de-cebadas-espanolas-diversidad-genetica-y-potencial-agronomico","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/la-coleccion-nuclear-de-cebadas-espanolas-diversidad-genetica-y-potencial-agronomico\/","title":{"rendered":"La colecci\u00f3n nuclear de cebadas espa\u00f1olas: diversidad gen\u00e9tica y potencial agronomico"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Samia Yahiaoui <\/strong><\/h2>\n<p>La colecci\u00f3n nuclear de cebadas espa\u00f1olas es un recurso fitogen\u00e9tico puesto a punto gracias a un esfuerzo de colaboraci\u00f3n entre el irta de catalu\u00f1a, el ita de castilla-le\u00f3n y la eead-csic de zaragoza. Es una representaci\u00f3n sistematizada de la diversidad gen\u00e9tica existente en la colecci\u00f3n de referencia guardada en el centro de recursos fitogen\u00e9ticos del inia, que conserva m\u00e1s de 2.000 entradas de hordeum, la mayor\u00eda de ellas cebadas aut\u00f3ctonas. Este trabajo presenta la evaluaci\u00f3n de la diversidad gen\u00e9tica y agron\u00f3mica de esta colecci\u00f3n.     la diversidad gen\u00e9tica de esta colecci\u00f3n fue evaluada mediante marcadores moleculares, concretamente sesenta y cuatro microsat\u00e9lites, distribuidos por los siete cromosomas. En total, fueron examinados 225 genotipos de cebada. De ellos, 159 l\u00edneas puras (148 de seis carreras y 11 de dos carreras) procedentes de variedades locales y 16 variedades antiguas de larga tradici\u00f3n en espa\u00f1a, conforman la colecci\u00f3n nuclear. Adem\u00e1s fueron evaluadas otras 50 entradas testigos de otros or\u00edgenes, mayoritariamente europeas. El conjunto de microsat\u00e9lites empleado detect\u00f3 un alto grado de polimorfismo general. Asimismo, se identificaron numerosos alelos espec\u00edficos de grupos de germoplasma, especialmente en las entradas espa\u00f1olas de 6 carreras.     los an\u00e1lisis multivariantes (cluster y coordenadas principales) llevados acabo sobre una matriz de distancias gen\u00e9ticas, as\u00ed como el an\u00e1lisis de la estructura de poblaci\u00f3n, realizado mediante el programa structure, separaron claramente los genotipos de 6 carreras espa\u00f1oles de los europeos. Las entradas de 2 carreras espa\u00f1olas se separaron menos de las variedades de 2 carreras de primavera del conjunto de referencia. Todos estos an\u00e1lisis apuntaron la existencia de dos grupos principales dentro de las entradas espa\u00f1olas de seis carreras. Estos dos grupos mostraron diferencias en distribuci\u00f3n geogr\u00e1fica y aparecen tener or\u00edgenes distintos.     la asociaci\u00f3n<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>La colecci\u00f3n nuclear de cebadas espa\u00f1olas: diversidad gen\u00e9tica y potencial agronomico<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 La colecci\u00f3n nuclear de cebadas espa\u00f1olas: diversidad gen\u00e9tica y potencial agronomico <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Samia Yahiaoui <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Lleida<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/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>Ernesto Igartua Arregui<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  Antonio Martin s\u00e1nchez <\/li>\n<li>Luis Ayerbe mateo-sagasta (vocal)<\/li>\n<li>marcelino P\u00e9rez de la vega (vocal)<\/li>\n<li>Jos\u00e9 Luis Molina cano (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Samia Yahiaoui La colecci\u00f3n nuclear de cebadas espa\u00f1olas es un recurso fitogen\u00e9tico puesto a punto gracias a [&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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