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List of varieties in MAN’s collection have been updated in https://www.marcherapple.net/
Just announced! The parentage of Cox’s Orange Pippin has now been confirmed in a paper by Nick Howard, et al.
Howard, N. P., Micheletti, D., Luby, J. J., Durel, C.-E., Denancé, C., Muranty, H., Ordidge, M., & Albach, D. C. (2022). Pedigree reconstruction for triploid apple cultivars using single nucleotide polymorphism array data. Plants, People, Planet, 1–14. https://doi.org/10.1002/ppp3. 1031
Ribston Pippin, was found to be a half sibling. Howard et al. also noted that both of the historically suggested parents, Ribston Pippin and Blenheim Orange, are triploids; their study has shown it is improbable that diploid apples can be bred from triploids.
Cox’s Orange Pippin parents are Margil x Rosemary Russet
Exciting!