Development of Diagnostic Markers and Applied for Genetic Diversity Study and Population Structure of Bipolaris sorokiniana Associated with Leaf Blight Complex of Wheat

, a key pathogenic fungus in the wheat leaf blight complex, was the subject of research that resulted in the development of fifty-five polymorphic microsatellite markers. These markers were then used to examine genetic diversity and population structure in Indian geographical regions. The simple seq...

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Bibliographic Details
Published in:Journal of fungi (Basel) 2023-01, Vol.9 (2), p.153
Main Authors: Kashyap, Abhijeet Shankar, Manzar, Nazia, Maurya, Avantika, Mishra, Deendayal Das, Singh, Ravinder Pal, Sharma, Pawan Kumar
Format: Article
Language:English
Subjects:
Alleles
Bipolaris sorokiniana
Fungi
Gene flow
Genetic diversity
Genetic markers
Genomes
Leaf blight
leaf blight of wheat
Leafspot
microsatellite markers
Microsatellites
Pathogens
polymorphism information content
Population genetics
Population structure
Population studies
Software
Spot blotch
SSR
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Summary:, a key pathogenic fungus in the wheat leaf blight complex, was the subject of research that resulted in the development of fifty-five polymorphic microsatellite markers. These markers were then used to examine genetic diversity and population structure in Indian geographical regions. The simple sequence repeat (SSR) like trinucleotides, dinucleotides, and tetranucleotides accounted for 43.37% (1256), 23.86% (691), and 16.54% (479) of the 2896 microsatellite repeats, respectively. There were 109 alleles produced by these loci overall, averaging 2.36 alleles per microsatellite marker. The average polymorphism information content value was 0.3451, with values ranging from 0.1319 to 0.5932. The loci's Shannon diversity varied from 0.2712 to 1.2415. These 36 isolates were divided into two main groups using population structure analysis and unweighted neighbour joining. The groupings were not based on where the isolates came from geographically. Only 7% of the overall variation was found to be between populations, according to an analysis of molecular variance. The high amount of gene flow estimate (N = 3.261 per generation) among populations demonstrated low genetic differentiation in the entire populations (F = 0.071). The findings indicate that genetic diversity is often minimal. In order to examine the genetic diversity and population structure of the populations, the recently produced microsatellite markers will be helpful. This study's findings may serve as a foundation for developing improved management plans for the leaf blight complex and spot blotch of wheat diseases in India.
ISSN:2309-608X
2309-608X
DOI:10.3390/jof9020153