Nature also manufactures genetically modified foods sweet potato found in foreign DNA

Belgian scientists say that nature is also making genetically modified foods. In sweet potatoes, they discovered foreign DNA, indicating that sweet potatoes have undergone genetic modification. Studies have pointed out that nature has been producing genetically modified sweet potatoes for thousands of years, which means that humans have been unknowingly eating GM foods for much longer than originally expected.

The genetic transformation of sweet potato is done by Agrobacterium, which is called “Gene Engineer of Nature”. The engineer can perform horizontal gene transfer, which is the exchange of genes between different species. In contrast, gene transfer usually occurs within the same species. This naturally occurring transgenic process is similar to an artificial transgenic process

Sweet potato is one of the most important crops for human consumption, especially in sub-Saharan Africa, parts of Asia, and Pacific islands. In addition, sweet potato is also one of the earliest domesticated crops. Archeological evidence found in caves in Holca Canyon, Peru, proves that humans successfully domesticated sweet potatoes as early as 8,000 to 10,000 years ago.

Sina Technology News Beijing time on May 18 news, according to foreign media reports, genetically modified plants and crop DNA has changed, in recent years has been the focus of controversy. But according to new research conducted by scientists from the University of Ghent in Belgium and the International Potato Institute, nature is also making genetically modified foods. In sweet potatoes, they discovered foreign DNA, indicating that sweet potatoes have undergone genetic modification.

The new study pointed out that nature has been producing genetically modified sweet potatoes for thousands of years. This means that humans have been unknowingly eating GM foods for much longer than originally anticipated. The foreign DNA found in sweet potato indicates that the sweet potato contains a natural genetically modified organism. In fact, this is not the first time that scientists have discovered natural genetically modified organisms, but it is the first time that they have been discovered in sweet potatoes. Sweet potato is an important crop.

The researchers said that genetic modification has occurred in sweet potatoes all over the world. Their research focuses on a type of bacteria called "Agrobacterium," which is sometimes referred to as "a genetic engineer of nature." The engineer can perform horizontal gene transfer, which is the exchange of genes between different species. In contrast, gene transfer usually occurs within the same species. Agrobacterium can transfer part of its own DNA (T-DNA) to plants. In sweet potatoes, scientists discovered T-DNA.

Scientists analyzed 291 sweet potato samples from the Americas, Africa, Asia, and Oceania. Evidence of Agrobacterium was found in all samples. Researcher Dr. Ridghurson said: “The natural presence of Agrobacterium T-DNA in sweet potato and stable inheritance through evolution is a striking example of the existence of cross-population DNA exchange. It shows that there are also genetic modifications in nature."

Research indicates that Agrobacterium DNA may have existed in sweet potatoes for thousands of years. This naturally occurring transgenic process is similar to an artificial transgenic process. The difference is that we can control the human genetic process, and the naturally occurring process is not controlled by us. Dr. Gerchson pointed out: "Compared with natural genetic organisms beyond our control, artificial transgenic organisms have a huge advantage in that we know exactly what features we have added to plants."

Sweet potato is one of the most important crops for human consumption, especially in sub-Saharan Africa, parts of Asia, and Pacific islands. In addition, sweet potato is also one of the earliest domesticated crops. Archeological evidence found in the caves of Holca Canyon in Peru shows that humans successfully domesticated sweet potatoes as early as 8,000 to 10,000 years ago. (xiaowen)

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