landatutako patata gozoa genoma dauka Agrobacterium T-DNA adierazitako geneak: naturalean transgeniko elikagaien laborantza baten adibidea

artean 291 probatutako patata gozoaren osaketak probatu, guztiek transferentzia DNA bat edo gehiago dituzte (T-DNA) sekuentziak. Sekuentzia hauek, which are shown to be expressed in a cultivated sweet potato clone (“Huachano”) that was analyzed in detail, suggest that an Agrobacterium infection occurred in evolutionary times. One of the T-DNAs is apparently present in all cultivated sweet potato clones, but not in the crop’s closely related wild relatives, suggesting the T-DNA provided a trait or traits that were selected for during domestication. This finding draws attention to the importance of plant–microbe interactions, and given that this crop has been eaten for millennia, it may change the paradigm governing the “unnatural” status of transgenic crops.

Informazio gehiago lortzeko: PNAS eta ScienceNews.

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