Abstract
Potato is one of the most important crops grown worldwide. The potato genome sequencing consortium has identified large numbers of genes having unknown functionality. To systematically assign functions to all predicted genes in its genome and their specific applications in potato improvement, different techniques have been developed over the years to generate mutants and analyze phenotypic variations among existing varieties. The generation of mutants could result in elucidating the function of genes and help in developing superior crop cultivars, thereby improving potato quality for future feed. In this review article, we have summarized various loss of function and gain of function genetic tools, which could be used for modifying or designing new strategies for the molecular engineering of potatoes. Moreover, the advantages and limitations of these tools suitable for mining genomic data have been discussed. This comprehensive summary could lay the foundation for the genetic improvement of potatoes towards food and nutritional security.
Key message
Functional genomics provides a better understanding of deciphering new experimental opportunities for developing nutritionally rich potato varieties in combating hidden hunger and developing new breeding programs for its improvement.
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Acknowledgements
The authors are thankful to the Central Potato Research Institute, Shimla for providing the necessary research facilities.
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Science and Engineering Research Board, Department of Science & Technology (DST), Government of India, has funded the project in the form of a National-Post Doctoral Fellowship to Neha Sharma (PDF/2017/000131).
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NSh, SS conceived and conceptualized the article. VIGS, SIGS, TILLING, Activation tagging were reviewed by NSh and NM. RNAi was reviewed by SS, KT and NS. Mutagenesis and Genome editing techniques were reviewed by NSh, SS and VB. Final compilation and editing were done by NSh and SS. All authors read and approved the manuscript.
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Sharma, N., Siddappa, S., Malhotra, N. et al. Advances in potato functional genomics: implications for crop improvement. Plant Cell Tiss Organ Cult 148, 447–464 (2022). https://doi.org/10.1007/s11240-021-02221-0
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DOI: https://doi.org/10.1007/s11240-021-02221-0