Геномът на култивиран сладък картоф съдържа Agrobacterium T-DNA, с изразени гени: Пример за естествено трансгенни хранителна култура

Между 291 тествани присъединения на култивиран сладък картоф, всички съдържат една или повече трансферна ДНК (Т-ДНК) последователности. Тези последователности, 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.

За повече информация: PNAS и ScienceNews.

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