Abstract
Re-domestication of potato into an inbred line-based diploid crop propagated by seed represents a promising alternative to traditional clonal propagation of tetraploid potato, but self-incompatibility has hindered the development of inbred lines. To address this problem, we created self-compatible diploid potatoes by knocking out the self-incompatibility gene S-RNase using the CRISPR–Cas9 system. This strategy opens new avenues for diploid potato breeding and will also be useful for studying other self-incompatible crops.
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Acknowledgements
This work was supported by Advanced Technology Talents in Yunnan Province (2013HA025) and the National Natural Science Foundation of China (31601360 to C.Z.). This work was also supported by the Chinese Academy of Agricultural Science (ASTIP-CAAS) and the Shenzhen municipal and Dapeng district governments.
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S.H. and C.Z. conceived and designed the experiments. M.Y. and Z.Y. performed the potato transformation. Z.P. and Y.X. conducted the genotyping and phenotyping of T0 and T1 plants. D.T. performed the bioinformatics analyses. D.L. made the CRISPR–Cas9 construct. C.Z., Z.P., M.Y. and S.H. wrote the manuscript.
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Ye, M., Peng, Z., Tang, D. et al. Generation of self-compatible diploid potato by knockout of S-RNase. Nature Plants 4, 651–654 (2018). https://doi.org/10.1038/s41477-018-0218-6
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DOI: https://doi.org/10.1038/s41477-018-0218-6
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