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Pedigree Validation and Reconstruction Applied in the Cultivated Potato Using 35 Microsatellites Markers

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Abstract

Knowledge of the parental origin of crop species is a prerequisite for formulating effective strategies for genetic conservation, management, and utilisation of genotypes in breeding programmes and genetic studies. In the case of the potato, although pedigree information is well documented, the possible lack of accurate pedigree data for certain cultivars constitutes a loss of opportunity to exploit the selection gain, the precise targeting of a market niche, or other breeding objectives. In this study, the genetic profiles of 1249 varieties were examined using a set of 35 polymorphic simple sequence repeats (SSR) markers with the available pedigree information to achieve pedigree validation. The maximum likelihood (LOD) was used to validate pedigree information of potato accessions for which the genetic data of at least one parent was available in the dataset. Our results showed that among the accessions for which both parents were genotyped, 81.7% presented a validated pedigree, while 18.3% presented a pedigree conflict (for at least one parent). Among the accessions for which only one parent was available in the dataset, 91.3% presented a validated pedigree, while 8.7% presented a pedigree conflict. Then, pedigree reconstruction was investigated to determine the most likely parent candidates for varieties whose pedigree is either questionable or lacking information.

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Acknowledgements

The authors gratefully acknowledge the breeding and maintaining companies as well as potato gene banks and international collaborators for providing the plant material and associated information used in the present study. The authors would like to thank the Centre pour l’Agronomie et l’Agro-industrie de la Province du Hainaut (CARAH) for providing funding to conduct this research. The help of the three anonymous reviewers is kindly acknowledged for the revision of the manuscript.

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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Martin Spanoghe, Alexandra Nirsa, and Thierry Marique. Deborah Lanterbecq supervised the study. The first draft of the manuscript was written by Martin Spanoghe, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Martin Spanoghe.

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The authors declare no competing interests.

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Spanoghe, M., Nirsha, A., Marique, T. et al. Pedigree Validation and Reconstruction Applied in the Cultivated Potato Using 35 Microsatellites Markers. Potato Res. 67, 209–220 (2024). https://doi.org/10.1007/s11540-023-09632-w

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  • DOI: https://doi.org/10.1007/s11540-023-09632-w

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