Designation (also parent-child relationship) for a relationship between grape varieties that cannot be clearly determined in the context of DNA analyses. One variety is a direct descendant of the other, but it can also be the other way round. See also under crossbreeding; and a list of keywords relevant to grape varieties under grapevine.
The glossary is a monumental achievement and one of the most important contributions to wine knowledge. Of all the encyclopaedias I use on the subject of wine, it is by far the most important. That was the case ten years ago and it hasn't changed since.
Andreas Essl
Autor, Modena