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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Identification of molecular marker and aggressiveness for different groups of Bipolaris sorokiniana isolates causing spot blotch disease in wheat (Triticum aestivum L.)
Current Microbiology, Volume 55, No. 2, Year 2007
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Description
One hundred fifty-five isolates of Bipolaris sorokiniana of wheat were studied for their morphopathological characterization. These isolates were grouped in five categories-black, brown/dull black, gray cottony growth, dull white/greenish black, and white-on the basis of their growth pattern. The frequency of the black suppressed type was maximum (45.63%), whereas the white isolate displayed lowest frequency (6.96%) in the natural population. Twenty RAPD (random amplified polymorphic DNA) primers were used to observe the variability among the identified groups of B. sorokininana. From each group, eight random isolates were investigated. A total of 143 bands were amplified, out of which 107 (74.83%) were polymorphic and 36 (25.17%) were monomorphic. On an average, the total numbers of bands generated per primer were 7.15, of which 5.35 and 1.80 were polymorphic and monomorphic, respectively. Dendrograms based on molecular polymorphism unveiled a considerable amount of diversity among the isolates. Specific DNA bands were identified for selected isolates. The distinct markers appeared to be potential enough to be employed as genetic fingerprints for future strain identification and classification. The study indicated that the RAPD primers provide an easy, rapid, and simple technique for the preliminary assessment of genetic diversity among the fungal isolates. © 2007 Springer Science+Business Media, LLC.
Authors & Co-Authors
Jaiswal, Sanjay Kumar
India, Varanasi
Banaras Hindu University
Sharma, Sandeep K.
India, Varanasi
Banaras Hindu University
Prasad, Ravindra
India, Varanasi
Banaras Hindu University
Joshi, Arun K.
India, Varanasi
Banaras Hindu University
Statistics
Citations: 44
Authors: 4
Affiliations: 2
Identifiers
Doi:
10.1007/s00284-007-0035-z
ISSN:
14320991
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study