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Genetic diversity of farmers’ varieties of rice of central India using microsatellite and blast linked markers

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Abstract

The genetic diversity of 45 farmers’ varieties collected from agro-climatic zones of central India were characterized using 26 simple sequence repeats (SSRs) and ten blast-linked markers. A total of 58 alleles representing 26 SSR loci were detected with frequency ranging from 2 to 4 (mean 2.23) alleles per locus. The polymorphism information content values for SSR markers varied from 0.50 to 0.88 for the primers RM449 and RM279, respectively. Further, the average marker index and effective multiplex ratio of 3.31 and 4.48 per primer, respectively could be observed. A dendrogram based on UPGMA exhibited clear-cut discrimination of the farmers’ varieties into two major clusters representing their geographical origin. Out of ten blast resistance genes screened, only Pik-h was widely distributed with 97.8% frequency and farmers’ variety Dihula Safed showed amplification for maximum of seven blast resistance genes. Inclusively, all the 45, indigenous farmers’ varieties represented a wide range of genetic variability and SSR markers proved to be a powerful tool in revealing genetic diversity and relationships. The presence of different blast resistance genes in farmers’ varieties with diverse traits can be utilized further in the future breeding programme.

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Abbreviations

SSR:

Simple sequence repeats

PCR:

Polymerase chain reaction

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Acknowledgements

The authors are gratefully acknowledge Director, Biotechnology Centre and staff members for the support and suggestions for the improvement of the manuscript.

Funding

The research work was carried out with no external funding or financial support. The work was conducted by the M.Sc. student to fulfil his thesis work for his degree programme.

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Authors and Affiliations

Authors

Contributions

SM and RS Conceived and designed the and performed the experiments, RS, SM and AK Analyzed the data, RS, SM and SRK, Contributed reagents/materials/analysis tools, RS, AK, GKK, LG and SRK Contributed to the writing of the manuscript. All authors have read and approved the final manuscript.

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Correspondence to Radheshyam Sharma.

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The authors declare that there is no conflict of interest for conducting this study. The research was carried out for guiding a master degree student at JNKVV, Jabalpur and we did not receive any external fund for design of the study. We are free to write, interpretation, publication and share our results.

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Meena, S., Sharma, R., Kumar Singh, S. et al. Genetic diversity of farmers’ varieties of rice of central India using microsatellite and blast linked markers. J. Plant Biochem. Biotechnol. 32, 225–238 (2023). https://doi.org/10.1007/s13562-022-00798-x

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  • DOI: https://doi.org/10.1007/s13562-022-00798-x

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