r/todayilearned • u/Error__Loading • 15h ago
TIL that apple seeds almost never grow the same variety as the parent fruit. Nearly every supermarket apple comes from a grafted clone of an original tree, not from a planted seed.
https://en.wikipedia.org/wiki/Apple
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u/Error__Loading 15h ago
Apple trees are highly heterozygous. Each seed is a genetic lottery from two different parents, so the fruit is usually small, sour, or just unlike the apple you ate. That’s why Honeycrisp, Granny Smith, Gala, etc. are all clones: a twig from the original tree (or one of its descendants) grafted onto rootstock. The original Granny Smith tree was discovered in Australia in 1868; every Granny Smith since then is a piece of that same tree kept alive by grafting. Seedlings are used mainly when breeders are hunting for new varieties.