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Genomic analyses reveal domestication history and transgenic insertions in papaya

The genome of the SunUp transgenic papaya cultivar includes a complex 1.64-Mb insertion that contains 3 transgenic fragments integrated with 61 nuclear genome fragments from the progenitor Sunset cultivar and 13 organelle genome fragments. Population genomic analyses yielded 147 selective sweeps during papaya domestication, which include essential genes that are involved in fruit flesh color formation and sugar content.

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Fig. 1: Comparative genomic analysis of the 1.64-Mb insertion in the transgenic SunUp and non-transgenic progenitor Sunset papaya cultivars.

References

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This is a summary of: Yue, J. et al. SunUp and Sunset genomes revealed impact of particle bombardment mediated transfromation and domestication history in papaya. Nat. Genet. https://doi.org/10.1038/s41588-022-01068-1 (2022).

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Genomic analyses reveal domestication history and transgenic insertions in papaya. Nat Genet 54, 539–540 (2022). https://doi.org/10.1038/s41588-022-01030-1

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