{"id":10336,"date":"2010-02-04T00:00:00","date_gmt":"2010-02-04T05:00:00","guid":{"rendered":"http:\/\/www.farmchemicalsinternational.com\/2010\/02\/04\/wild-oat-genes-could-combat-crown-rust\/"},"modified":"2019-09-16T13:46:16","modified_gmt":"2019-09-16T17:46:16","slug":"wild-oat-genes-could-combat-crown-rust","status":"publish","type":"post","link":"https:\/\/www.agribusinessglobal.com\/es\/industry-news\/wild-oat-genes-could-combat-crown-rust\/","title":{"rendered":"Los genes de la avena silvestre podr\u00edan combatir la oxidaci\u00f3n de la corona"},"content":{"rendered":"

S T. PAUL, Minnesota, EE. UU. - Cient\u00edficos del Servicio de Investigaci\u00f3n Agr\u00edcola (ARS<\/a>), la principal agencia de investigaci\u00f3n cient\u00edfica intramuros del Departamento de Agricultura de EE. UU. (USDA<\/a>), buscan el ADN de la avena salvaje como un posible combatiente contra la roya de la corona, la enfermedad f\u00fangica m\u00e1s da\u00f1ina de la avena, informa el ARS en un comunicado de prensa. La avena silvestre, generalmente considerada una maleza, parece tener una resistencia efectiva contra Puccinia coronata<\/em>, el hongo que causa la roya de la corona, informa ARS. P. coronata <\/em>reduce los rendimientos de avena hasta 40% y puede adaptarse a variedades obtenidas para resistirla gen\u00e9ticamente. Los investigadores y colegas del ARS han insertado genes de resistencia individuales en variedades de avena que producen prote\u00ednas que se cree reconocen cepas de roya de la corona y desencadenan una respuesta de defensa contra ellas. Tambi\u00e9n se han desarrollado cultivares \u201cmultil\u00ednea\u201d con varios genes de resistencia.<\/p>\n

Seg\u00fan Martin L. Carson, l\u00edder de investigaci\u00f3n del Laboratorio de Enfermedades de Cereales del ARS en St. Paul, Minnesota, EE. UU., P. coronata se reproduce tanto sexual como asexualmente y tiene suficiente flexibilidad gen\u00e9tica para superar los genes de resistencia, generalmente en unos cinco a\u00f1os. El an\u00e1lisis de Carson tambi\u00e9n muestra que la roya de la corona est\u00e1 aumentando en virulencia en toda Am\u00e9rica del Norte.<\/p>\n

Carson ha inoculado con \u00f3xido de corona las semillas de Avena barbata<\/em>, la avena fina. Despu\u00e9s de varios cruces con A.barbata<\/em>, Carson encontr\u00f3 pl\u00e1ntulas altamente resistentes a una variedad de cepas de roya de la corona. En estudios en curso, los est\u00e1 cruzando con la avena dom\u00e9stica, A. sativa<\/em>, para tratar de desarrollar la combinaci\u00f3n correcta de resistencia y caracter\u00edsticas deseables, como alto rendimiento y tolerancia a la sequ\u00eda. El objetivo son nuevas l\u00edneas de plantas que combatan eficazmente el \u00f3xido de la corona durante muchos a\u00f1os.<\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

S T. PAUL, Minnesota, EE. UU. \u2014 Cient\u00edficos del Servicio de Investigaci\u00f3n Agr\u00edcola (ARS), la principal agencia interna de investigaci\u00f3n cient\u00edfica de EE. UU.\u2026<\/p>","protected":false},"author":110,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[489],"tags":[],"class_list":["post-10336","post","type-post","status-publish","format-standard","hentry","category-industry-news"],"yoast_head":"\nWild Oat Genes Could Combat Crown Rust - AgriBusiness Global<\/title>\n<meta name=\"description\" content=\"ST. 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