{"id":711,"date":"1994-01-01T00:00:00","date_gmt":"1994-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1994\/01\/01\/estudio-de-la-diversidad-genetica-de-poblaciones-naturales-del-genero-lolium-del-norte-de-espana\/"},"modified":"1994-01-01T00:00:00","modified_gmt":"1994-01-01T00:00:00","slug":"estudio-de-la-diversidad-genetica-de-poblaciones-naturales-del-genero-lolium-del-norte-de-espana","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/estudio-de-la-diversidad-genetica-de-poblaciones-naturales-del-genero-lolium-del-norte-de-espana\/","title":{"rendered":"Estudio de la diversidad genetica de poblaciones naturales del genero lolium del norte de espa\u00f1a"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Enrique Arbones Maci\u00f1eira <\/strong><\/h2>\n<p>Se estudiaron en dos localidades de galicia (no de espa\u00f1a) las caracteristicas agronomicas de 61 poblaciones naturales de lolium perenne y de 11 de lolium multiforum mediante tecnicas multivariantes. Se encontro una gran variabilidad en ambas especies tanto a nivel intra como interpoblacional, constatandose la existencia de fuertes interacciones genotipo x ambiente. Con el fin de mejorar la adaptacion de este material, se seleccionaron independientemente en ambas localidades los mejores genotipos. Las plantas seleccionadas intervendran en un policruzamiento a partir del que se desarrollara un programa de seleccion recurrente. Se observaron ademas ciertas relaciones entre las variables agronomicas de las poblaciones y las condiciones ecologicas de su lugar de procedencia.  se caracterizaron isoenzimaticamente 14 poblaciones de l. Perenne y 9 de l. Multiforum empleando 11 loci correspondientes a 10 sistemas enzimaticos. La clasificacion realizada a partir del indice de distancia de nei permitio la diferenciacion de ambas especies. El estudio de los indices f de wright mostro una variabilidad intrapoblacional superior a la observada entre poblaciones. La falta de correspondencia entre las clasificaciones realizadas con criterios agronomicos e isoenzimaticos aconsejaron como estrategia de conservacion de recursos geneticos la creacion de una coleccion nucleo. Por ello se eligieron en l. Perenne 10 poblaciones correspondientes a clases agronomicas y climaticas diferenciadas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de la diversidad genetica de poblaciones naturales del genero lolium del norte de espa\u00f1a<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de la diversidad genetica de poblaciones naturales del genero lolium del norte de espa\u00f1a <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Enrique Arbones Maci\u00f1eira <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1994<\/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>Jos\u00e9 Alberto Oliveira Prendes<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Antonio Rigueiro Rodr\u00edguez <\/li>\n<li>Ruth Lindner Selbmann (vocal)<\/li>\n<li> Fraga Vila Mar\u00eda  Isabel (vocal)<\/li>\n<li> Reigosa Roger Manuel Jos\u00e9 (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Enrique Arbones Maci\u00f1eira Se estudiaron en dos localidades de galicia (no de espa\u00f1a) las caracteristicas agronomicas de [&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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