ArticleArchives of microbiology2022
Elucidating genetic diversity and population structure of Pyricularia oryzae isolates causing wheat blast in Bangladesh.
Article in Archives of microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors at 1 institution in 1 country.
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Abstract
Wheat blast, caused by Pyricularia oryzae pathotype Triticum, is one of the most notorious diseases of wheat. In this study, a total of twenty-four monoconidial isolates representing four major wheat blast affected districts, namely Chuadanga, Meherpur, Kustia and Jhenaidah of Bangladesh were analyzed. Eight RAPD and four ISSR primers being used for genetic diversity assay produced a total of 94 bands of which 85% were polymorphic. UPGMA dendrogram based on combined dataset (RAPD and ISSR) separated all the isolates into two main clusters having similarity ranged from 64 to 93%. Principal coordinate analysis showed congruent result with cluster analysis. However, clustering of the isolates according to their origin and plant part sampled was not apparent in the dendrogram. The genetic diversity indices unveiled that genetic diversity in P. oryzae populations is low. Average Nei's gene diversity (h) and Shannon's Information Index (I) calculated for isolates from each district were found 0.16 and 0.24, respectively. The population structure analysis of the isolates revealed the presence of two sub-populations with admixture of alleles. Analysis of molecular variance indicated that significantly higher level of variation (96%) in the population was present within districts while a relatively low proportion (4%) of the variation was detected among districts. Knowledge generated in this study will give a pace in the development of appropriate wheat blast management strategies to control this disease in Bangladesh.
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