Kiwifruit duplicated its vitamin C genes twice, 50 million and 20 million years ago

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Today's kiwifruit contains about as much vitamin C as an orange -- the result of the kiwifruit's ancestors' spontaneously duplicating their DNA in two separate evolutionary events approximately 50-57 million and 18-20 million years ago.

from Latest Science News -- ScienceDaily https://ift.tt/2MQy6TI

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