Citrus ID (source 5) and the rootstock index report the seed parent as generic Siamese pummelo; neither identifies an accession. The linked label is for navigation to the catalog's Siamese Pummelo record (CRC2421), not a claim that CRC2421 was the actual donor. The distinct CRC2240 Siamese Acidless accession is not substituted. Gotha Road #6 remains the pollen parent; the separate ancestry estimate is unchanged.
Source [5]: https://idtools.org/citrus_id/index.cfm?packageID=1179&entityID=8884
Revision: Remove only the parent-label suffix “(accession unspecified)”; retain accession uncertainty in the node note and preserve the linked variety, other parent, roles, source, and ancestry.