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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Статья в журнале

Marker assisted backcross breeding approach to improve blast resistance in Indian rice (Oryza sativa) variety ADT43  [2014]

Divya, Balakrishnan; Robin, S.; Rabindran, R.; Senthil, S.; et al.

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Marker assisted backcrossing breeding has become one of the essential tools in transferring novel genes to adapted varieties and was employed to pyramid three blast resistance genes Pi1, Pi2 and Pi33 to a popular susceptible rice variety ADT43. Gene pyramiding process was facilitated by marker aided selection for both foreground as well as background genotype. Previously reported linked molecular markers were deployed to survey resistant and susceptible genotypes. In the BC₃F₁ generation four lines viz, AC-B3-11-7, AC-B3-11-36, AC-B3-11-57, AC-B3-11-83 were identified to be pyramided with three genes and subjected to background analysis and a genome recovery up to 95 % was observed and advanced to further generations. Morphological, yield and grain quality traits were significantly similar to ADT43. The introgressed lines with three gene combinations were highly resistant to the blast pathogen compared to genotypes with single genes and the susceptible checks under blast nursery screening at two epiphytotic locations; Coimbatore and Gudalur. The selected three gene pyramided backcross lines in the desirable background were advanced to obtain an improved ADT 43 with resistance to blast disease.
Журнал
Euphytica
ISSN : 0014-2336

Библиографическая информация

Язык:
English
Тип:
Journal Article
В АГРИСе с:
2015
Том:
v. 200
Выпуск:
1
Стартовая страница:
61
Конечная страница:
77
Издатель:
Springer-Verlag
Все названия:
"Marker assisted backcross breeding approach to improve blast resistance in Indian rice (Oryza sativa) variety ADT43"@eng
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Библиографическая информация

Язык:
English
Тип:
Journal Article
В АГРИСе с:
2015
Том:
v. 200
Выпуск:
1
Стартовая страница:
61
Конечная страница:
77
Издатель:
Springer-Verlag
Все названия:
"Marker assisted backcross breeding approach to improve blast resistance in Indian rice (Oryza sativa) variety ADT43"@eng