Identifying the Genes of Blast Resistance in Rice (Oryza sativa L.) Using Line X Tester Analysis
نویسندگان
چکیده
منابع مشابه
Identification of Major Blast Resistance Genes in Korean Rice Varieties (Oryza sativa L.) Using Molecular Markers
The 13 major blast resistance (R) genes against Magnaporthe grisea were screened in a number of Korean rice varieties using molecular markers. Of the 98 rice varieties tested, 28 were found to contain the Pia gene originating from Japanese japonica rice genotypes. The Pib gene from BL1 and BL7 was incorporated into 39 Korean japonica varieties, whereas this same gene from the IRRI-bred indica v...
متن کاملPopulation structure analysis and association mapping of blast resistance in indica rice (Oryza sativa L.) landraces.
Rice blast caused by Magnaporthe oryzae is one of the most devastating rice diseases worldwide. To understand the genetic diversity of indica landrace accessions and identify simple sequence repeat (SSR) markers that are associated with blast resistance, a population of 276 indica landraces from across the world was constructed. This population was then used to evaluate the blast-resistance phe...
متن کاملAnalysis of simple sequence repeat markers linked with blast disease resistance genes in a segregating population of rice (Oryza sativa).
Among 120 simple sequence repeat (SSR) markers, 23 polymorphic markers were used to identify the segregation ratio in 320 individuals of an F(2) rice population derived from Pongsu Seribu 2, a resistant variety, and Mahsuri, a susceptible rice cultivar. For phenotypic study, the most virulent blast (Magnaporthe oryzae) pathotype, P7.2, was used in screening of F(2) population in order to unders...
متن کاملIdentification of QTLs and possible candidate genes conferring sheath blight resistance in rice (Oryza sativa L.)
Sheath blight, caused by the pathogenic fungus Rhizoctonia solani Kühn, is one of the most devastating diseases in rice. Breeders have always faced challenges in acquiring reliable and absolute resistance to this disease in existing rice germplasm. In this context, 40 rice germplasm including eight wild, four landraces, twenty- six cultivated and two advanced breeding lines were screened utiliz...
متن کاملCorrelation Studies in Rice (Oryza sativa L.)
Seventy genotypes of rice (Oryza sativa L.) were evaluated during Kharif 2012 to study the nature and extent of correlation among yield and yield attributing characters, days to 50 per cent flowering, days to maturity, number of effective tillers per plant, plant height, panicle length, number of grains per panicle, 1000-grain weight, grain yield per plant, kernel length, kernel breadth and L/B...
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ژورنال
عنوان ژورنال: Journal of Plant Production
سال: 2016
ISSN: 2090-374X
DOI: 10.21608/jpp.2016.47016