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MineralMan

(148,092 posts)
8. Yes, of course.
Tue Sep 24, 2019, 09:07 AM
Sep 2019

The Bitter Orange, or Seville Orange, is the closest to the original citrus fruit. It's inedible, unless it is cooked with sugar to become marmalade. Over centuries, various genetic varieties have shown up through random genetic changes. Some of those were more palatable without processing. So, humans planted or grafted those improvements and raised them.

Today, we have a whole range of citrus varieties, most of which were the result of Unpredictable genetic changes that were noticed and cultivated. The Navel Orange, for example, was a mutation. Every navel orange grown today, seedless and easy to peel, came from that single sport mutation, which has been grafted and cloned by humans to produce our favorite eating orange.

Humans created the orange we know today, not some invisible deity.

The Seville Orange is often used as a root stock for grafting, since it is very, very hardy and disease resistant. But, other than marmalade, it has no other uses as a fruit.

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